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17C-076 (3) ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) • A summary of visual observations including time to flames exiting the module and /or burn through of the sub -floor assembly. • Conclusions in the form of a statement of findings summarizing the fire performance of the assembly; and, as appropriate, compared to a control assembly. • Signature of a representative engineer or officer of the test facility. 18 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) Appendix C Test Method for Crawl Space Evaluation C1.0 SCOPE The objective of this test is to evaluate the fire performance of foam plastic insulation materials when tested in a simulated crawl space module to determine if the insulation is acceptable for use in crawl space areas without a thermal barrier. The test provides a comparison of fire performance characteristics between insulated wood sub -floor assemblies. C2.0 TEST CONFIGURATION A sub -floor assembly is mounted on top of a three -sided wall module. The simulated crawl space module consists of three 8 -ft square (outside dimensions ± 2 in.) walls, each 48 ± 2 in. high, and built of nominal 4 -in. wide by 8 -in. high by 16 -in. long concrete blocks with a full open space on one side of the structure. Masonry walls or module walls constructed of wood or metal studs with two layers of /2 in. gypsum board are permitted provided the interior dimensions are the same as for a concrete block module, i.e., 88 ± 2 in. wide and 92 ± 2 in. deep. If wood or metal stud construction is used, the studs shall be located inside the module, i.e., the width of the module is equal to the distance between the interior faces of the gypsum board attached to the side walls and the depth is equal to the distance between the front opening and the interior face of the gypsum board attached to the back wall. The floor /ceiling above the crawl space is built using nominal 2 by 8 -in. by 8 -ft floor joists on 16 -in. centers, with 2 by 8 -in. joist headers, all bearing on 2 by 4 -in. sill plates and surfaced with 5 /32 -in. thick, 4 -ply, APA graded A -C plywood sub - flooring. The use of joists and headers with a larger depth, e.g., 2 by 10 in., 2 by 12 in., etc. is permitted at the client's request. Note 1: The use of CDX grade plywood is considered too variable in quality for comparison purposes required for this evaluation. Note 2: All construction lumber (joists and studs, if used) shall be of the same species and grade for all tests conducted to qualify a foam plastic insulation. The joists are perpendicular to the camera's line -of- sight, so that they tend to dam the flame front and hold it inside the test area. The floor of the test chamber is covered with approximately 1 in. of sand. To provide additional protection, it is acceptable to cover the floor with 1 /2 in. gypsum board before installing the 1 in. layer of sand. C3.0 IGNITION SOURCE The fire source is a 22 -lb wood crib constructed of nominal 2 by 2 -in. No. 1 select grade white pine (no knots), 15 -in. square in plan, spaced approximately 1 -in. apart and fastened at right angles with a single nail at each end. The crib shall be conditioned to an average moisture content of 7.5 ± 0.5 %. The crib is placed in a rear corner of the crawl space 1 in. from each wall surface and supported approximately 4 -in. above the floor on small sections of refractory brick. The crib sticks of the bottom layer shall be parallel to the side walls. Approximately 150 ml of ethyl alcohol in a circular or square metal pan with a surface area of 36 to 40 in placed under the crib is used for ignition. C4.0 TEST DURATION AND END POINT COMPARISON CRITERIA The following two criteria shall be measured and reported: 1. Time to flames emerging from the front of the crawl space. 2. Time to burn - through of the floor /deck system. If this criteria is not reached prior to laboratory personnel ending the test, the time at which the test was ended and reason for ending the test shall be reported. C5.0 DOCUMENTATION The test is recorded with photographs and video documentation positioned to view the entire front of the open side of the module. A timing reference, mechanical or electronic, is included in all photographic and video records. C6.0 REPORT The report shall include: • Name and location of facility where test is conducted. • A description of the tested assembly with emphasis on the insulation type (including facings), thickness, density, and attachment details. • Photographic and video documentation: pre -test, during (including timing), and post -test. 17 ACCEPTANCE CRITERIA FOR SPRAY-APPLIED FOAM PLASTIC INSULATION (AC377) foam K. 1 r - as burr)et At 12". 24", 36" and 48" above module floor, measure distance from outside edge of burner to foam surface. Meet the following criteria: max (So Sa, S., S - 2" 0.20(So+S34-S-)-&:-.-+S.-) - 1" rnax 86, Ba.,g 0.20(B B a) 1" FIGURE X3—MEASUREMENT POINTS FOR BURNER SPACING FROM FOAM 16 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 1.5" x D" studs @ 24" O. __________ (D _ foam thickness to be teste ) __ __ ) To simulate actual field applbatbns, ■ foam is permitted over interior-stud faces, subject to the restrictions of Figure 3 on comer cavities adjacent to bumer.interior of wal ...„ 11 • spray polyurethane foam l at thickness to be tested, 1 hstalled to full depth of gvty D spray polyurethane foam at nominal thickness to be tested. exterior of I♦ interor of wall wall exterrrr of interior of wall I room ■ FIGURE X1 —TOP VIEW OF WALL CONSTRUCTION 1.5" x D" joists @24 "O.C. (D = nomnal gypsum foam thickness wallboard \ to be tested) �► �' I' I Il 1 I 0 I l ►. �`_______ __ 1 _ To simulate actual field 1.5 x D" applications, foam is permitted top plate over interior stud faces, subject to the restrictions of Figure 3 on corner cavities adpcent to bumer.interior of wall exterior of interior of room room spray polyurethane foam At nominal thidkness to be tested. FIGURE X2 — SIDE VIEW OF CEILING CONSTRUCTION 15 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) f. Combustion air is provided in accordance with Sections 701 and 703 (2006 IMC) and Section 701 (2012 and 2009 IMC). g. The installed coverage rate or thickness of coatings, if part of the insulation system, shall be equal to or greater than that which was tested. X2.3 Attic Floors: The maximum thickness of foam plastic applied on the walls for the test method outlined in Appendix X can be used to establish the maximum thickness of foam plastic without a covering in attic floors. If a proprietary ignition barrier is used on the tested walls, it will be required for the attic floor application, also. 14 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) iv. Weight or volume of the coating applied to the entire module area in (Ib /ft or Gallons /ft shall be recorded along with the measured DFT. Method 2 (Medallion /target method) Install two metal medallions within 24 inches of the corner where the burner will be placed. The medallions shall be 2 inches by 2 inches with a' /4 inch hole in the center to allow a nail or screw to fasten the medallion to the foam surface. . ii. Using an optical comparator or caliper, measure the coating thickness (dry mils film thickness) at four random locations of each medallion sample. Avoid the thinnest and the thickest spots on the samples. This will provide eight coating thickness measurements. The average of these eight measurements must be used to determine the average coating thickness. iii. The bare spots on the foam where the medallions were removed shall be coated with nonflammable caulk, coating or sealant prior to conducting the test. X2.1.3 Test Corner Configuration: During the installation of the SPF, care shall be taken to provide as smooth a surface as possible, especially in the wall areas that will be adjacent to and above the burner. The maximum allowable deviations are described in Figure X3. X2.1.4 Test Data: During the test, all of the following test parameters shall be determined: a. Time at which the Heat Release Rate exceeds 1 MW. b. Time at which the heat flux to the floor exceeds 20 kW /m c. Time at which the average upper layer temperature exceeds 600 °C. d. Time at which flames exit the doorway. X2.1.5 Report: The following additional items shall be reported: a. Type, description, average thickness and nominal density of the SPF wall and ceiling specimens. b. If used as part of the insulation system, the type, description, and nominal thickness (in mils) or application rate (in gallons per 100 square feet) of coating. c. Time recorded for each test parameter from Section X2.1.4 above. d. Average of the four time values indicated in Item X2.1.5c. X2.1.6 Conditions of Acceptance: A test shall be determined to be successful when the average time for attainment of the four measured test parameters (Item X2.1.5c, above) is 4 minutes 18 seconds or greater. This acceptance criteria is based on comparison of results for the tested assembly versus results for a code - prescribed ignition barrier applied over foam plastic insulation. X2.2 Limitations: X2.2.1 Attic or Crawl Space Installation: When testing is in accordance with Appendix X, the evaluation report shall include the following limitations: a. Entry to the attic or crawl space is only to service utilities, and no storage is permitted. b. There are no interconnected attic or crawl space areas. c. Air in the attic or crawl space is not circulated to other parts of the building. d. Attic ventilation is provided when required by IBC Section 1203.2 or IRC Section R806, except when air - impermeable insulation is permitted in unvented attics in accordance with Section R806.4 of IRC, Under -floor (crawl space) ventilation is provided when required by IBC Section 1203.3 or IRC Section R408.1, as applicable. e. The foam plastic insulation is limited to the maximum thickness and density tested. 13 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) Appendix X Alternate Testing for Use in Attics and Crawl Spaces without a Code - prescribed Ignition Barrier X1.0 Scope: X1.1 General: The objective of this testing is to evaluate the fire performance of spray - applied, polyurethane foam plastic insulation materials (SPF) when tested in a room /corner test configuration to determine if the insulation and /or the insulation system is acceptable for use in attics and crawl spaces without prescriptive ignition barriers per the IRC or IBC. X1.2 Use in Attics: Spray - applied polyurethane foam plastic insulation installed in attics where entry is made only for service of utilities shall be protected by an ignition barrier as set forth in IBC Section 2603.4.1.6, IRC Section R316.5.3, 2006 IRC Section R314.5.3, or Exception 4 of UBC Section 2602.4, except as noted in Section X2.0. Utilities include, but are not limited to, mechanical equipment, electrical wiring, fans, plumbing, gas or electric hot water heaters, and gas or electric furnaces. X1.3 Use in Crawl Spaces: Spray - applied polyurethane foam plastic insulation installed in a crawl space where entry is made only for service of utilities shall be protected by an ignition barrier as set forth in IBC Section 2603.4.1.6, IRC Section R316.5.4, 2006 IRC Section R314.5.4or Exception 4 of UBC Section 2602.4, except as noted in Section X2.0. Utilities include, but are not limited to, mechanical equipment, electrical wiring, fans, plumbing, gas or electric hot water heaters, and gas or electric furnaces. X2.0 The ignition barrier shall not be required when satisfactory testing is conducted with exposed foam plastic insulation or with a foam plastic insulation system covered by a coating in accordance with the following: X2.1 Test Method: The test procedure to be used is NFPA 286, "Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth," with the modifications described below. X2.1.1 Ignition Source: The standard gas burner shall be used. The burner shall be positioned such that it is in contact with both sidewalls in the test corner of the fire test room as indicated in Figure X3. X2.1.2 Specimen Mounting: The test specimens can be mounted in either of two configurations. Whichever configuration is used, the interior room dimensions as required by the NFPA 286 test procedure shall be maintained. The two configurations are: a. The fire test room shall be completely lined with one layer of 5 /8 -inch- thick, Type X gypsum wallboard. The SPF shall be applied directly to the gypsum wallboard at the maximum thickness and density intended for use. The SPF shall be applied to both the three test walls and the test ceiling. If a covering is used over the foam, it shall be applied to both the walls and the ceiling at the same minimum thickness or coverage rate intended for use. b. The three walls of the test room without the doorway will be constructed with wood studs sized to the same depth as the test specimen, 93 inches high, 24 inches on center with a single top and bottom plate, as shown in Figure X1. The exterior side of the walls will be covered with one layer of 5 /8- inch - thick, Type X gypsum wallboard. The SPF will be sprayed to fill each stud cavity and be continuous from the bottom plate to the top plate and from stud to stud. The ceiling of the test room will be constructed as shown in Figure X2. The ceiling will consist of wood joists sized to the same depth as the test specimen at 24 inches on center. A total of five joists will be used and they will run parallel with the 12 -foot length of the test room (front to back). The two outboard joists will rest on the top plates of the walls. The exterior side of the ceiling will be covered with one layer of 5 /8- inch - thick, Type X gypsum wallboard. The SPF will be sprayed to fill each joist cavity and will be continuous from the front to the back and from joist to joist. If a coating (e.g., intumescent coating) is used over the foam, it shall be applied to both the walls and the ceiling at the same minimum thickness or coverage rate intended for use. c. If a coating is used over the foam, its thickness shall be measured using the dry-film thickness technique (DFT), using one of the following methods: Method 1 (Slit - sample method) i. Take two slit samples within 24 inches of the corner where the burner will be placed. The slit samples shall be approximately 0.5 inch deep, 2 -3 inches long, and 0.5 inch wide. One face of the slit sample (where the measurements will be made) shall be cut perpendicular to the surface of the spray polyurethane foam. ii. Using an optical comparator, measure the coating thickness at four random locations on the face of each slit sample. Avoid the thinnest and the thickest spots on the samples. This will provide eight coating thickness measurements. The average of these eight measurements must be used to determine the average coating thickness. iii. The holes from which slit samples were taken must be filled with a nonflammable caulk or sealant. 12 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) b. Combustion air is provided in accordance with Sections 701 and 703 of the 2006 IMC or Section 701 of the 2009 I and 2012 IMC. c. The foam plastic insulation is limited to the maximum thickness and density tested. d. The installed coverage rate or thickness of coatings, if part of the insulation system, shall be equal to or greater than that which was tested. A2.2.2 (Option 2) For Use on Walls or the Underside of Floors in a Crawl Space: Comparative crawl space fire tests shall be conducted in accordance with Appendix C where the performance of the exposed foam plastic insulation is compared under identical test conditions to that of the foam plastic insulation covered with a code - approved ignition barrier. The interior face of the control assembly shall consist of nominal 1 /4- inch -thick A -C or B -C plywood applied to the interior face of wood wall framing and over the foam plastic insulation (plywood is permitted by UBC Section 2602.4, Exception 4, IBC Section 2603.4.1.6, IRC Section R 316.5.3 and 2006 IRC Section R314.5.3 as a protective material for foam plastic located in attics.) The second test assembly shall be identical, but without plywood on the interior face of the wall. The time to flashover and the time to burn through the wood- framed floor /ceiling must be equal or greater for the exposed foam plastic insulation versus the foam plastic insulation covered with the 1 /4- inch -thick plywood. A2.2.2.1 Limitations: When testing is in accordance with Section A2.2.2, the evaluation report shall include the following limitations: a. Entry to the crawl space is only to service utilities and no storage is permitted. b. There are no interconnected crawl space areas. c. Air in the crawl space is not circulated to other parts of the building. d. Under -floor (crawl space) ventilation is provided, when required by IBC Section 1203.3 or IRC Section R408.1, as applicable. e. The foam plastic insulation is limited to the maximum thickness and density tested. I f. Combustion air is provided in accordance with Sections 701 and 703 of the 2006 IMC or Section 701 of the 2009 and 2012 IMC. g. The installed coverage rate or thickness of coatings, if part of the insulation system, shall be equal to or greater than that which was tested. 11 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) Appendix A Testing for Use in Attics and Crawl Spaces without a Code - prescribed Ignition Barrier A1.0 Use in Attics: A1.1 Spray - applied polyurethane foam plastic insulation installed in attics where entry is made only for service of utilities shall be protected by an ignition barrier as set forth in 2006 and 2009 IBC Section 2603.4.1.6, IRC Section R316.5.3, 2006 IRC Section R314.5.3 or Exception 4 of UBC Section 2602.4, except as noted in Section A1.2. Utilities include, but are not limited to, mechanical equipment, electrical wiring, fans, plumbing, gas or electric hot water heaters, and gas or electric furnaces. A1.2 As an alternative, the ignition barrier shall not be required when satisfactory testing is conducted with exposed foam plastic or with a foam plastic insulation system, such as foam plastic insulation covered by a coating in accordance with Section A1.2.1. A1.2.1 For use on Walls or Floors of Attics or the Underside of Roof Decks of Attics: Tests shall be conducted in accordance with NFPA 286 with the conditions of acceptance specified in 2009 IBC Section 803.1.2.1 (2006 IBC Section 803.2); UL 1715 or UBC Standard 26 -3 with conditions of acceptance as specified in Section 3.3.3.2.3 of AC377 The tests must be conducted with the foam plastic installed at the maximum density and maximum thickness for which recognition is sought over the substrates, as described in the test standard. The reported thickness shall be in accordance with Figures X1 and X2. Placement of the burner or wood crib shall be in accordance with the applicable standard, with the measured distance between the burner or crib and the interior surface of the assembly as described in Figure X3. A1.2.1.1 Limitations: When testing is in accordance with Section A1.2.1, the evaluation report shall include the following limitations: a. Attic ventilation is provided when required by IBC Section 1203.2 or IRC Section R806, as applicable. b. Combustion air is provided in accordance with Sections 701 and 703 of the 2006 IMC and Section 701 of the 2009 IMC. c. The foam plastic insulation is limited to the maximum thickness and density tested. d. The installed coverage rate or thickness of coatings, if part of the insulation system, shall be equal to or greater than that which was tested. A1.2.2 Attic Floors: The maximum thickness of foam plastic applied on the ceilings for the test methods outlined in Section A1.2.1 can be used to establish the maximum thickness of foam plastic applied without a covering in attic floors. If a proprietary ignition barrier is used on the tested ceilings, it will be required for the attic floor application also. A2.0 Use in Crawl Spaces: A2.1 Spray - applied polyurethane foam plastic insulation installed in a crawl space where entry is made only for service of utilities shall be protected by an ignition barrier as set forth in IBC Section 2603.4.1.6, IRC Section R314.5.4 or Exception 4 of UBC Section 2602.4, except as noted in Section A2.2. Utilities include, but are not limited to, mechanical equipment, electrical wiring, fans, plumbing, gas or electric hot water heaters, and gas or electric furnaces. A2.2 As an alternative, the ignition barrier shall not be required when satisfactory tests are conducted with exposed foam plastic or with a foam plastic insulation system, such as foam plastic insulation covered by a coating in accordance with either Section 2.2.1 or Section 2.2.2. A2.2.1 (Optionl) For Use on Walls or the Underside of Floors in a Crawl Space: Tests shall be conducted in accordance with NFPA 286 with the conditions of acceptance specified in IBC Section 803.1.2.1 (2006 IBC Section 803.2); or , UL 1715 or UBC Standard 26 -3 with conditions of acceptance as specified in Section 3.3.3.2.3 of AC377. The tests must be conducted with the foam plastic installed at the maximum density and maximum thickness for which recognition is sought, over the substrates as described in the standard. The reported thickness shall be in accordance with Figures X1 and X2.Placement of the burner or wood crib shall be in accordance with the applicable standard, with the measured distance between the burner or crib and the interior surface of the assembly as described in Figure X3. A2.2.1.1 Limitations: When testing is in accordance with Section A2.2.1, the evaluation report shall include the following limitations: a. Under -floor (crawl space) ventilation is provided in accordance with IBC Section 1203.3 or IRC Section R408.1, as applicable. 10 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) TABLE 2— REFERENCED STANDARDS DATE OF STANDARD STANDARD 2006 IBC, IRC, IFC, IECC 2009 IBC, IRC, IFC, IECC 2012 IBC, IRC, IFC, IECC ASTM C177 1997 1999 1999 ASTM C518 1991 or 2004 1991 or 2004 1991 or 2004 ASTM C840 2004 2007 2008 ASTM C1029 2002 2005a 2008 ASTM C1363 2005 2005 2005 ASTM D1621 2000 2000 2000 ASTM D1622 1998 1998 1998 ASTM D1623 1978 (1995) 1978 (1995) 1978 (1995) ASTM D2126 1998 1998 1998 ASTM D2856' 1994 (1998) 1994 (1998) 1994 (1998) ASTM D6226 2005 2005 2005 ASTM E84 2004 2007 2009 ASTM E96 /E96M 2000e01 2005 2005 ASTM E 108 2004 2007a 2007a ASTM E119 2000 2007 2008a ASTM E283 2004 2004 2004 ASTM E970 2000 2000 2008a ASTM E2178 - 2003 2003 FM 4450 1989 with Supplements through 1989 with Supplements 1989 with Supplements July 1992 through July 1992 through July 1992 FM 4880 2001 2005 2005 NFPA 259 2003 2003 2008 NFPA 275 - - 2012 NFPA 268 2001 2007 2012 NFPA 286 2000 2006 2011 NFPA 285 1998 2006 2011 UL 263 - 2003 2003 2003 UL 723 With revisions UL 723 - through May 2005 2008 1998 with revisions through July 2004 with revisions through UL 790 1998 2004 October 2008 1996 with revisions through April 1996 with revisions through UL1040 2001 (IBC) and June 2001 (IRC) April 2001 (IBC) and June 1996 2001 (IRC) UL1256 2002 2002 2002 1997 with revisions through 1997 with revisions through 1997 with revisions through UL1715 October 2002 (IBC) and March March 2004 April 2008 (IBC) and March 2004 (IRC) 2004 (IRC) 'Not referenced in the IBC or the IRC 9 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) TABLE 1— PHYSICAL PROPERTIES OF SPRAY - APPLIED POLYURETHANE FOAM PLASTIC (SPF) INSULATION BY APPLICATION APPLICATION TESTS REQUIRED VALUE Low- density Thermal Resistance at 75 °F (24 °C) mean temperature. One of the four test As reported insulation methods listed below shall be used: (nominal core ASTM C 177 density 0.5 -1.4 ASTM C 236 (pcf) ASTM C 518 ASTM C 1363 Core Density: As reported ASTM D 1622 Tensile Strength: Minimum closed cell 5 lbf/in minimum ASTM D 1623 content of 90% Closed cell content less 3 lbf/in minimum Note: Closed cell content shall be determined in than 90% accordance with ASTM D 2856 or ASTM D 6226 Dimensional Stability: 15% maximum total change ASTM D 2126 Surface Burning Characteristics: 75 flame - spread index or less, IBC —ASTM E 84 or UL 723 450 smoke - developed index or less UBC Standard 8 -1 Medium density Thermal Resistance at 75 °F (24 mean temperature. One of the four test As reported insulation methods listed below shall be used: (nominal core ASTM C 177 density 1.5 - 3.5 ASTM C 236 pcf) ASTM C 518 ASTM C 1363 Core Density: As reported ASTM D 1622 Tensile Strength: 15 lbf/in minimum ASTM D 1623 Dimensional Stability: 15% maximum total change ASTM D 2126 Surface Burning Characteristics: 75 flame- spread index or less, IBC —ASTM E 84 or UL 723 450 smoke - developed index or less UBC Standard 8 -1 Compressive Strength: 15 lbf/in minimum ASTM D 1621 Roofing Core Density: As reported (nominal core ASTM D 1622 density 2.5 - 3.5 Tensile Strength: 40 lbf/in minimum pcf) ASTM D 1623 Dimensional Stability: 15% maximum total change ASTM D 2126 Surface Burning Characteristics: 75 flame- spread index or less ASTM E 84 or UL 723 UBC Standard 8 -1 Compressive Strength: 40 lbf/in minimum ASTM D 1621 Thermal Resistance at 75 °F (24 mean temperature. One of the four test As reported methods listed below shall be used: ASTM C 177 ASTM C 236 ASTM C 518 ASTM C 1363 Sealing Core Density: As reported (nominal core ASTM D 1622 density 0.5 - 2.5 Surface Burning Characteristics: 75 flame- spread index or less, pcf) IBC —ASTM E 84 or UL 723 450 smoke - developed index or less UBC Standard 8 -1 Adhesion: 5 lbf/in minimum ASTM D 1623 For SI: 1 pcf = 16.02 kg /m 1 lbf/in = 6.89 kPa. 8 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 4.0 QUALITY CONTROL a. at a 1 -inch (25.4 mm) thickness 4.1 Quality Control Program: The products shall be b. at the maximum thickness permitted by the manufactured under an approved quality control program applicable test procedure, but no less than 3.5 inches with inspections by an inspection agency accredited by the (88.9 mm) International Accreditation Service (IAS) or otherwise c. at other thicknesses to be recognized in the acceptable to ICC ES. evaluation report as determined by interpolation or 4.2 Quality Documentation: Quality documentation extrapolation permitted in Section 3.6 of this criteria. complying with the ICC -ES Acceptance Criteria for Quality Documentation (AC10) shall be submitted. 5.3.2 For evaluation reports recognizing spray applied foam plastic thicknesses less than 3.5 inches 4.3 Quality Control Details: The inspection agency (88.9 mm): or testing laboratory shall provide satisfactory evidence on the spray - applied foam plastic formulation and the method a. at a 1-inch (25.4 mm) thickness of spraying and fabricating samples used for tests under b. at the maximum thickness recognized in the this criteria. In the absence of information released by the evaluation report manufacturer, the inspection agency must conduct c. at other thicknesses to be recognized in the necessary tests to make this determination. The evaluation report as determined by interpolation. inspection agency shall provide reasonable assurance through quality control procedures and inspections that a 5.3.3 R- values need not be reported for sealing formulated system is the same as samples used in applications where no insulation values are claimed. qualifying tests. 5.4 For spray - applied insulation, the evaluation report 4.4 Recycled and Recovered Materials: The quality shall include a condition of use that jobsite labeling shall control manual shall describe the process of introducing I comply with IRC Sections N1101.4 and N1101.4.1, 2012 recycled or recovered material, including cleanliness and IECC Sections N1101.12.1 and N1101.12.2, 2009 IECC proportioning controls. The inspection agency shall Sections 303.1.1 and 303.1.2 or 2006 IECC Sections provide reasonable assurance, through quality control 102.1.1 and 102.1.11, as applicable. procedures outlined in the manual and through 5.5 The evaluation report shall state the construction inspections, that a manufactured product is the same as types for which the insulation has been evaluated. samples used in qualifying tests. Use of recovered or recycled material in finished spray - applied foam plastic 5.6 The evaluation report shall state whether the insulation shall be addressed in the quality control insulation is a vapor retarder and the minimum thickness procedures. and density to do so. When the insulation has not been 4 A qualifying inspection shall be conducted at each tested, or does not meet the requirements for a vapor manufacturing facility when required by the ICC-ES retarder, it is assumed the product is not a vapor retarder Acceptance Criteria for Inspections and Inspection and the evaluation report shall state that a vapor retarder Agencies (AC304). shall be installed as required in the applicable code. 5.0 EVALUATION REPORT RECOGNITION 5.7 When recognition includes installation in attics and crawl spaces, the evaluation report shall state the 5.1 The evaluation report shall include, at a minimum, requirements for ventilation (i.e., when applicable or when the IBC, IRC and IECC within the evaluation scope, attics are ventilated) and all limitations as noted in except when the report is limited to recognition under the Appendices A, X and C, as applicable. IRC. 5.8 When recognition includes installation of the 5.2 Except for single- component foams, the evaluation I spray - applied foam plastic in exterior walls of Type I report shall state that installation shall be by professional through Type IV construction in accordance with Section contractors certified, accredited, authorized or approved 2603.5 of the IBC, the evaluation report shall provide by the report holder, or by the Spray Polyurethane Foam details of the assemblies tested in accordance with NFPA Alliance (SPFA). 285, and /or NFPA 285 test results extended via third -party 5.3 The evaluation report shall state all of the following engineering analysis. R- values at a mean test temperature of 75 °F ± 5 °F 5.9 When a coating is used where a thermal barrier or (23.8 °C ± 2.8 °C)as follows: ignition barrier is required, the thickness of the coating 5.3.1 For evaluation reports recognizing spray- shall be identified both in dry film thickness and wet film applied foam plastic thicknesses greater than or equal to thickness (in mils) and in coating application rate (in 3.5 inches (88.9 mm): gallons per square feet) • 7 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) applied to the ceiling of test modules tested in accordance 2.8 °C). Supplemental thermal- resistance values at other with Section 3.2. mean temperatures may be included. R- values of less 3.4.5 S pray- a lied Foam Plastic Used in Crawl than 10 shall be rounded to the nearest tenth. R- values of p y- pp 10 or more shall be rounded to the nearest whole number. Spaces: Within a crawl space where entry is made only for service of utilities, spray - applied foam plastic shall be 3.6.3 Recognition of thermal- resistance (R- values) protected as set forth in IBC Section 2603.4.1.6, IRC shall be established for the range of thicknesses and the Section R316.5.4, 2006 IRC Section R314.5.4 or density to be recognized in the evaluation report. Tests Exception 4 of UBC Section 2602.4. Utilities include, but shall be conducted at a 1 -inch (25.4 mm) thickness and at are not limited to, mechanical equipment, electrical wiring, the maximum thickness permitted by the test procedure, fans, plumbing, gas or electric hot water heaters, and gas but at no less than 3.5 inches (88.9 mm). Calculated R- or electric furnaces. values for thicknesses between 1 inch (25.4 mm) and 3.5 As an alternative, the prescriptive ignition barrier inches (88.9) shall be based on linear interpolation of shall not be required when satisfactory testing is tested R-values at 1-inch (25.4 mm) and 3.5 inch (88.9 conducted with exposed foam plastic insulation or with a mm) thicknesses. Calculated R- values for thicknesses foam plastic insulation system, such as foam plastic greater than 3.5 inches (88.9 mm) shall be based on insulation covered by a coating, in accordance with either tested R-values at 3.5 inch (88.9 mm) thickness. Appendix A2.0 or Appendix X of this criteria. Exception: When the maximum thickness of the 3.5 Ventilation Requirements under the IRC: spray - applied foam plastic recognized in the evaluation Unvented, attic assemblies are permitted under the report is less than 3.5 inches (88.9 mm), tests shall be I conditions prescribed in 2012 IRC Section R806.5 and conducted at a 1-inch (25.4 mm) thickness and at the 2009 IRC Section R806.4, based on testing in accordance maximum thickness recognized in the evaluation report. with either ASTM E283 or ASTM E2178. "Air 3.6.4 Sample Conditioning: Samples shall be impermeable" is defined as a maximum total air leakage conditioned at 73° ± 2 °F (23 °C ± 1°C) and 50 ± 5 percent rate of 0.02 L /s -m (0.004 ft /min -ft when testing is at a relative humidity for 180 ± 5 days from time of 75 Pa pressure differential. Testing in accordance with manufacture, or 90 days ± 2 days at 140 °F (60 °C) dry heat ASTM E 283 shall be modified as follows: ± 2 °F (1°C) following the procedures of ASTM C 1029. 1. The test frame shall be a minimum of 24 inches 3.7 Use In Buildings of Type I, II, III and IV (610 mm) square, and a 1 /2- inch -thick (12.7 mm), low- Construction: For purposes of this acceptance criteria, density fiberboard substrate complying with ASTM C 208 spray - applied foam plastic is a combustible material. In fastened and sealed on the panel edges. The fiberboard certain building types defined in IBC Section 602 where shall have a minimum air permeance of 1.0 L /s -m (0.20 noncombustible materials are required, spray - applied ft /min -ft foam plastic is permitted in exterior walls of building Types 2. The spray applied foam plastic insulation shall be I, II, III and IV, provided appropriate testing is performed applied in the minimum thickness for which recognition is and results meet criteria according to IBC Section 2603.5, sought. UBC Section 2602.4 (Exception 3), or UBC Section 2602.5.2, and as permitted in wall assemblies under 3. The test pressure difference shall be 75 Pa (1.57 Section 602, Exception 2. lb/ft 3.8 Spray - Applied Foam Plastic Insulation Used as 4. Air flow shall be by both infiltration and Decorative Material: Use of spray - applied foam plastic as exfiltration. a decorative material attached to the building can be 5. Total air leakage shall be reported as the larger considered under IFC Section 807 or UFC Section result from the infiltration and exfiltration tests. 1103.3.3. Unvented crawl spaces are permitted under the 3.9 Spray applied Foam Plastic Insulation conditions prescribed in IRC Section R408.3. Use of foam Protection: Thermal barriers and other protective plastics in an unvented crawl space is limited to testing in components exposed to damage from moving vehicles, accordance with Section A2.2.1 (Option 1, which is testing the handling of merchandise, or similar activities, shall be in accordance with NFPA 286 or UL 1715 with smoke protected. evaluation component), or application with a code- 3.10 Exterior Wall- covering Systems: Spray - applied prescribed ignition barrier. Comparative testing under foam plastic insulation used with exterior wall covering Section A2.2.2, or testing in accordance with Appendix X, systems shall comply with this criteria. shall not be used as a basis for qualification of the foam plastic insulation in unvented crawl spaces. 3.11 Roof Classification: Spray - applied foam plastic used in roofing assemblies as defined in Section 1.4.5 of 3.6 Thermal Resistance: this criteria shall comply with IBC Sections1507.14 and 3.6.1 Thermal resistance shall be determined in 2603.6, IRC Sections R902 and 905.14 or UBC Section accordance with ASTM C 1029 except as noted herein. 2602.5.3, as applicable. Classified roof coverings with For sealing applications where no insulation values are foam plastic shall be tested in accordance with ASTM claimed, determination of thermal resistance is not E108 or UL 790. required. Test specimen density must be within 10 percent 3.12 Recognition of specific products or systems may of the nominal density, recognized in the evaluation report. be based on end use, quantity, location and similar 3.6.2 The reporting of thermal resistance shall be considerations, where testing described in Section 3 of based on a mean -test temperature of 75 °F± 5 °F (23.8 °C ± this criteria is not applicable or practical. 6 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 3.3.4.2.2 A video camera with a mechanically accordance with ASTM E 119 or UL 263 for a minimum of adjustable iris, adjusted to prevent automatic closing of the 15 minutes. The condition of acceptance is that the iris opening due to brightness of the fire (at least 50 average rise from ambient temperature at the beginning of percent open), shall be used. A video monitor shall be the test is not more than 250 °F (120 °C). used to determine when adjustments and compensation 3.4.2.2 UBC: The index classification shall be for the brightness of the ignition flames are needed. determined in accordance with UBC Standard 26 -2. The The camera mount shall be adjusted so that the small -scale furnace specified therein shall be recognized camera lens is approximately 3 feet (914 mm) from the by ICC -ES. Recognition involves evaluating small -scale floor. test results on a specimen that has previously been tested The camera angle and magnification shall be as a component of a full -scale fire - resistive assembly. The adjusted until the top of the doorway and the top of the intent is to compare temperatures between the unexposed crib or burner are visible and the ceiling area directly surface of the small -scale assembly and the full -scale above the fire is in full view. assembly tested in accordance with UBC Standard 7 -1. A complete report of test, including temperature readings, is 3.3.4.2.3 For each test, when the test is for wall required for each test. At least three additional systems only, a new section of uncoated and unpainted thermocouples are necessary between the interface of 5 /8 -inch (15.9 mm) gypsum wallboard, 2 feet by 2 feet (610 gypsum wallboard and wood studs, if this type of mm by 610 mm), shall be installed in the ceiling at the wall assembly is used for calibration. corner intersection directly above the crib. 3.4.2.3 NFPA 275 is an acceptable method to 3.3.4.2.4 A clock or timer depicting "real time" establish requirements for a nonprescriptive thermal shall be included in all videos. The timer may be integral to barrier. the video camera, or a clock/timer is permitted to be used, 3.4.3 Thermal Barriers for Spray - applied Foam providing it can be clearly viewed throughout the test Plastics as Nonstressed Elements in Walls and period. For the UL 1715 or UBC Standard 26 -3 test, the Ceilings: As an alternative to covering the foam plastic start of the test shall be when the alcohol- soaked excelsior with a thermal barrier complying with IBC Section 2603.4, is ignited. IRC Section R316.4, 2006 IRC Section R314.4, or UBC 3.3.4.2.5 Immediately prior to ignition of the crib Section 2602.4, as applicable, an assembly consisting of or burner, the date and laboratory test report identification either the exposed foam plastic insulation or the foam number shall be filmed. plastic insulation and any coating, may be qualified by 3.3.4.2.6 The test report shall be in sufficient tests described in Section 3.3.3. detail to provide: 3.4.4 Spray - applied Foam Plastic Used in Attics: 1. Description of the room test setup, with Within an attic where entry is made only for service of details. utilities, spray - applied foam plastics shall be protected as set forth in IBC Section 2603.4.1.6, IRC Section R316.5.3, 2. Test observations, commencing with crib 2006 IRC Section R314.5.3 or Exception 4 of UBC Section ignition and ending with a final description of panels after 2602.4, as applicable. Utilities include, but are not limited all combustion ceases. to, mechanical equipment, electrical wiring, fans, 3. Thermocouple readings. plumbing, gas or electric hot water heaters, and gas or electric furnaces. 4. Statement of passing or failing. As an alternative, the prescriptive ignition barrier 5. Photographic record of tests. shall not be required when satisfactory testing is 6. Small sample of the protective covering or conducted with exposed foam plastic insulation or with a panel. foam plastic insulation system, such as foam plastic insulation covered by a coating, in accordance with either 3.4 Thermal Barrier Requirements: Appendix A1.0 or Appendix X of this criteria. 3.4.1 Spray - applied foam plastic insulation shall be For assemblies where the insulation is installed on separated from the interior of the building by a thermal the attic floor only, the prescriptive ignition barrier shall not barrier as set forth in IBC Section 2603.4, 2009 IRC be required over exposed foam plastic or foam plastic Section R316.4, 2006 IRC Section R314.4 or UBC Section insulation covered with a non - prescriptive ignition barrier 2602.4, as applicable, except as described in Sections when tested in accordance with ASTM E 970, where the 3.4.3 or 3.4.4 of this criteria. For application to the exterior measured critical radiant flux is not less than 0.12 watt per of metal roof decks, acceptable separation from the square centimeter. The initial sample thickness must be building interior is permitted to be determined by testing in sufficient such that upon completion of the ASTM E 970 accordance with FM 4450, UL 1256, Items 3.2 and 3.3 of test, at least 0.5 inch (12.7 mm) of the foam thickness UBC Section 601.3, or the ICC -ES Acceptance Criteria for remains across the entire sample panel. To assure Foam Plastic Insulation Applied Directly to Steel Decks consistent thickness and flatness of the specimen surface, (AC142) (UBC only). three foam thickness measurements shall be performed 3.4.2 Qualification of Thermal Barriers: Thermal using a 3-inch (76 mm) disk pin probe. The measurements barriers shall have an index of 15 or greater and shall be shall be taken along the centerline of the specimen at /a qualified to remain in place for the time of the index L, 1 /2 L, and 3 /4 L from the end of the specimen, where L is classification the length of the test specimen. These three thickness measurements shall not deviate by more than 0.5 inch 3.4.2.1 IBC and IRC: The index classification shall (12.7 mm). The maximum thickness of foam plastic be determined by exposing the thermal barrier to testing in recognized in the report will be the foam plastic thickness 5 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 3.1.4 Potential Heat Content: Where the potential and Ceilings: Testing shall be conducted in accordance heat content of spray - applied foam plastic is required, with NFPA 286, UL 1715 or UBC Standard 26 -3 with the values shall be determined in accordance with NFPA 259 following conditions: or UBC Standard 26-1. 3.3.3.1 Testing conducted in accordance with 3.1.5 Ignition: Where ignition properties for spray- NFPA 286 shall have conditions of acceptance as stated applied foam plastic are required, values shall be in the IBC Section 803.1.2.1 or 2006 IBC Section 803.2. determined in accordance with NFPA 268 or UBC Standard 26 -4 or 26 -9. 3.3.3.2 Testing conducted in accordance with UL 1715 or UBC Standard 26 -3 shall be modified as follows: 3.2 Flame- spread Characteristics: i 3.3.3.2.1 The /2- inch -thick (12.7 mm) 3.2.1 Flame- spread Index: The insulation shall cementitious board room liner is permitted to be replaced exhibit a maximum flame- spread index of 75 when tested with other materials with equivalent or superior thermal in accordance with ASTM E 84, UL 723 or UBC Standard insulation characteristics. 8 -1 at the maximum thickness, or the maximum bead diameter /minimum bead spacing, and density intended for 3.3.3.2.2 Where the foam plastic material, in its use, but no greater than 4 inches (152 mm). tested thickness, has an R value of 25 or more, the cementitious substrate is permitted to be deleted under 3.2.2 Smoke - developed Index: The insulation shall the following conditions: exhibit a maximum smoke - developed index of 450 when tested in accordance with ASTM E 84, UL 723 or UBC 3.3.3.2.2.1 There is no burning completely Standard 8 -1 at the maximum thickness, or the maximum through the foam during the test. Absence of the substrate bead diameter /minimum bead spacing, and density does not affect the installation of thermal barriers or other intended for use, but no greater than 4 inches (152 mm). coverings over the foam plastic. Testing required to determine the smoke - developed index 3.3.3.2.3 Conditions of acceptance shall comply is waived for roofing application under IBC Section 2603.3 with UL 1715 or UBC Standard 26 -3 except for the (Exception 3), IRC Section R316.5.2, 2006 IRC Section following: R314.5.2 or UBC Section 2602.5.3. 3.2.3 For material thicknesses greater than 4 inches 3.3.3.2.3.1 When it can be determined that (152 mm) (the maximum that can be tested in the ASTM E discoloration is not due to charring, the /4 -inch (6.4 mm) 84 apparatus), supplemental fire testing shall be limit in Item 1 of UBC Section 26.304 is not applicable. conducted in accordance with NFPA 286 (with acceptance 3.3.3.2.3.2 Determination of excessive smoke criteria of IBC Section 803.1.2.1. or 2006 IBC Section levels shall be as set forth in Section 3.3.4 of this 803.2), FM 4880, UL 1040, UL 1715, UBC Standard 26 -3 acceptance criteria. or other testing methods approved by ICC-ES prior to 3.3.3.3 Placement of the burner or wood crib shall testing and related to the actual end -use configuration be in accordance with the applicable standard, with the performed on the finished spray - applied foam plastic measured distance between the burner or crib and the assembly in the maximum thickness and density intended interior surface of the assembly as described in Figure X3. for use. See Section 3.3. 3.2.4 Other sections in the codes and this 3.3.4 Smoke Determination: acceptance criteria may alter the maximum allowable 3.3.4.1 General: Smoke determination shall flame- spread index. consider the following: 3.2.5 Except as specifically permitted in IBC Section 3.3.4.1.1 Smoke - density measurements of the 2603, 2006 IRC Section R314, IRC Section R316, or UBC spray - applied foam plastic under ASTM E 84, UL 723 or Section 2602, spray - applied foam plastic recognition shall UBC Standard 8 -1 in the most critical manner of be limited to the maximum thickness and density of the installation. test specimen. 3.3.4.1.2 Visual documentation (movies, 3.3 Supplemental Fire Test Methods: videotapes) of the smoke generated during the room test. 3.3.1 Supplemental fire tests for spray - applied foam Where an obviously high level of smoke is generated plastic products shall be conducted at the maximum during the test, the product will be considered thickness and density anticipated for use. unacceptable. Any questionable level, as determined by ICC -ES, will be deemed unacceptable, since the present 3.3.2 Full -scale Corner Fire Tests: Full -scale state of the art does not submit to a precise pass -fail corner tests conducted for nonbearing wall panels, criteria. ICC -ES reserves the right to reject visual incorporating spray - applied polyurethane insulation, shall documentation, if of poor quality. One copy of visual be based on Factory Mutual's building corner fire test documentation will be retained by ICC -ES for reference procedure 4880 or the Underwriters Laboratories test purposes. procedure described in UL Standard 1040. These tests involve walls up to 30 feet (9144 mm) high and 50 feet (15 3.3.4.2 Video Recording: Test Protocol for Video 240 mm) long with 750- to 800 -pound (340 to 365 kg) Recording of UL 1715 or UBC Standard 26 -3 tests: wood cribs. Assemblies justified only by full -scale corner 3.3.4.2.1 A 300 -watt flood -type, quartz halogen tests are permitted to be located only in areas with a lamp shall be positioned in the corner diametrically minimum clear ceiling height of 20 feet (6096 mm). opposite the crib, near the floor level. The lamp shall be 3.3.3 Room Tests for Spray - applied Foam Plastic aimed at the wall corner /ceiling intersection above the crib Insulation Used as a Nonstressed Element in Walls or burner. 4 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 1.3.2.3.2 NFPA 268, Standard Test Method for can be sprayed with each pass and the maximum number Determining Ignitability of Exterior Wall Assemblies Using of passes allowed. If more than one spray application is a Radiant Heat Energy Source. allowed, the report shall include any restrictions, including, 1.3.2.3.3 NFPA 275, Standard Method of Fire but not limited to, curing time and preparation. Tests for the Evaluation of Thermal Barriers Used over 2.3 Packaging and Identification: Foam Plastic Insulation. 2.3.1 General: A description of the method of 1.3.2.3.4 NFPA 286, Standard Method of Fire packaging and field identification of the spray - applied Test for Evaluating Contribution of Wall and Ceiling foam plastic insulation. Identification provisions shall Interior Finish to Room Fire Growth. include the evaluation report number. 1.3.2.4 Underwriters Laboratories (UL): 2.3.2 Identification: Identification shall comply with IBC Section 2603.2, 2009 IRC Sections R316.2 and 1.3.2.4.1 UL 263, Standard for Fire Test of N1101.4.1, 2006 IRC Sections R314.2 and N1101.4.1, Building Construction and Materials. 2009 IECC Sections 303.1.1 and 303.1.2, 2006 IECC 1.3.2.4.2 UL 723, Test for Surface Burning Sections 102.1.1 and 102.1.11, or UBC Section 2602.2, as Characteristics of Building Materials. applicable. 1.3.2.4.3 UL 790, Tests for Fire Resistance for 2.4 Testing Laboratories: Testing laboratories shall Roof Covering Materials. comply with Section 2.0 of the ICC -ES Acceptance Criteria for Test Reports (AC85) and Section 4.2 of the ICC -ES 1.3.2.4.4 UL 1040, Fire Test of Insulated Wall Rules of Procedures for Evaluation Reports. Construction. 2.5 Test Reports: Test reports shall comply with 1.3.2.4.5 UL 1256, Fire Tests of Roof Deck AC85. Construction. 2.6 Product Sampling: Sampling of the spray - applied 1.3.2.4.6 UL 1715, Fire Tests of Interior Finish foam plastic insulation for tests under this criteria shall Material. comply with Section 3.1 of AC85. Preparation of test 1.4 Definitions assemblies shall comply with Section 3.3 of AC85. Formulation of the insulation shall be disclosed to the 1.4.1 Free Rise: A condition of application wherein inspection agency. The formulation need not be disclosed the spray - applied foam plastic is applied to a substrate or to ICC -ES but shall be identified in a controlled, dated within a cavity and allowed to expand in at least one document that is available to the inspection agency. The direction without constraint. testing submitted to ICC -ES shall be on products 1.4.2 Recovered Material: Waste material and by- produced using the stated formulation. Sampling of products that have been recovered or diverted from solid products for tests shall verify that the components are waste. The term does not include those materials and by consistent with the stated formulation. products generated from, and commonly reused within, an 3.0 TEST, PERFORMANCE AND INSTALLATION original manufacturing process. REQUIREMENTS 1.4.3 Post - consumer Waste: Material or product 3.1 Physical Properties: that has served its intended use and has been discarded 3.1.1 Spray - applied, Rigid Cellular Polyurethane after passing through the hands of a final user. Post- Foam (SPF): These materials, including products into consumer waste is a part of the broader category which recycled material is introduced, shall comply with "recycled material." the requirements in ASTM C 1029, except that only those 1.4.4 Recycled Material: Material that is utilized in tests identified in Table 1 need be conducted, with the place of a raw or virgin material in manufacturing a conditions of acceptance as stated in Table 1. Where the product, and consists of materials derived from post- number of test specimens is not specified in the applicable consumer waste, industrial scrap, material derived from test methods, a minimum of five specimens shall be used. agricultural waste and other items. 3.1.2 Recycled or Recovered Material 1.4.5 Roofing Applications: Roofing applications Qualification: The introduction of recycled or recovered are those applications wherein the spray - applied material into ICC -ES— recognized spray - applied foam polyurethane foam plastic is applied to the exterior of a plastic materials shall be qualified to establish that finished roof substrate and provided with a liquid - applied coating spray - applied foam plastic insulation with recycled or complying with the code. recovered content meets the requirements of this 2.0 BASIC INFORMATION acceptance criteria. The definitions in Section 1.4 apply. The following information shall be submitted: 3.1.3 Vapor Retarder: Spray - applied foam plastic insulation intended to be qualified as a vapor retarder shall 2.1 Product Description: Complete information be tested in accordance with ASTM E 96, Procedure A concerning material specifications, application type (low- (desiccant method), and shall be classified as follows: density insulation, medium - density insulation, roofing or sealing) and density. Class I: 0.1 perm or less 2.2 Installation Instructions: Installation details and Class II: 0.1 <perm 5 1.0 limitations, surface preparation and equipment settings (as Class III: 1.0 <perm <_ 10 perm appropriate). Installation instructions shall specify the (1 perm = 5.7 x 10-11 kg /Pa s m 2 ) overall maximum thickness, the maximum thickness that 3 ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION (AC377) 1.0 INTRODUCTION 1.3.2.1.2 ASTM C518, Test Method for Steady - 1.1 Purpose: The purpose of this acceptance criteria State Heat Flux Measurements and Thermal Transmission is to establish requirements for spray - applied foam plastic Properties by Means of the Heat Flow Meter Apparatus. insulation to be recognized in an ICC Evaluation Service, 1.3.2.1.3 ASTM C840, Specification for LLC (ICC -ES), evaluation report under the 2012, 2009 and Application and Finishing of Gypsum Board. 2006 International Building Code (IBC) the 2012, 2009 1.3.2.1.4 ASTM C1029, Specification for Spray and 2006 International Residential Cod o (I the 2012, Applied Rigid Cellular Polyurethane Thermal Insulation. 2009 and 2006 International Fire Code (IFC), the 2012, 2009 and 2006 International Energy Conservation Code 1.3.2.1.5 ASTM C1363 Standard Test Method (IECC), the 1997 Uniform Building CodeTM (UBC) and the for Thermal Performance of Building Materials and 1997 Uniform Fire Code (UFC). The bases of Envelope Assemblies by Means of a Hot Box Apparatus. recognition are IBC Section 104.11, IRC Section 104.11, 1.3.2.1.6 ASTM D1621, Test Method for IECC Section 103 and UBC Section 104.2.8. Compressive Properties of Rigid Cellular Plastics. The reason for development of this criteria is to identify 1.3.2.1.7 ASTM D1622, Test Method for applicable code requirements for spray - applied Determining Apparent Density of Rigid Cellular Plastics. polyurethane foam plastic insulation and to clarify test methods and conditions of acceptance for diversified 1.3.2.1.8 ASTM D1623, Test Method for Tensile testing. and Tensile Adhesion Properties of Rigid Cellular Plastics 1.2 Scope: This criteria applies to single- and (Type B Specimen). multiple- component, spray- and bead - applied 1.3.2.1.9 ASTM D2126, Test Method for polyurethane foam plastics for use in accordance with the Response of Rigid Cellular Plastics to Thermal and Humid applicable code. Unless otherwise noted, the term "spray- Aging. applied" refers to both spray - applied and bead - applied 1.3.2.1.10 ASTM D2856, Standard Test Method polyurethane foam plastic insulation used in nonstructural, for Open -Cell Content of Rigid Cellular Plastics by the Air air sealing and roofing applications. This criteria is limited Pycnometer; to jobsite installations of spray - applied polyurethane foam plastics wherein during its application, the foam plastic is 1.3.2.1.11 ASTM D6226, Standard Test Method applied in a liquid or frothed state and permitted to free- for Open -Cell Content of Rigid Cellular Plastics. rise and cure in situ. This criteria provides acceptable 1.3.2.1.12 ASTM E84, Test Methods for Surface diversified test procedures for qualifying fire performance Burning Characteristics of Building Materials. characteristics of spray - applied foam plastic insulation exceeding the maximum thickness tested in accordance 1.3.2.1.13 ASTM E96, E96/E96M, Test Method with ASTM E 84 and for qualifying thermal barriers and for Water Vapor Transmission of Materials. ignition barriers. This criteria supersedes the ICC -ES I 1.3.2.1.14 ASTM E108, Test Methods for Fire Acceptance Criteria for Foam Plastic Insulation (AC12) for Tests of Roof Coverings. the above - described spray - applied foam plastic materials. 1.3.2.1.15 ASTM E119, Test Methods for Fire 1.3 Codes and Referenced Standards: Where Tests of Building Construction and Materials. standards are referenced in this criteria, the standards shall be applied consistently with the code upon which 1.3.2.1.16 ASTM E283, Test Method for compliance is based. Determining the Rate of Air Leakage through Exterior Windows, Curtain Walls, and Doors under Specified 1.3.1 Codes: Pressure Differences across the Specimen. 1.3.1.1 2012, 2009 and 2006 International Building 1.3.2.1.17 ASTM E970, Test Method for Critical Code (IBC), International Code Council. Radiant Flux of Exposed Attic Floor Insulation Using a 1.3.1.2 2012, 2009 and 2006 International Radiant Heat Energy Source. Residential Code (IRC), International Code Council. 1.3.2.1.18 ASTM E2178, Standard Test Method 1.3.1.3 2012, 2009 and 2006 International Fire for Air Permeance of Building Materials. Code (IFC), International Code Council. 1.3.2.2 Factory Mutual (FM): 1.3.1.4 2012, 2009 and 2006 International Energy 1.3.2.2.1 FM 4450, Approval Standard for Class Conservation Code (IECC), International Code Council. 1 Insulated Steel Deck Roofs. 1.3.1.5 1997 Uniform Building Code TM (UBC). 1.3.2.2.2 FM 4880, American National Standard 1.3.1.6 1997 Uniform Fire Code T"" (UFC). for Evaluating Insulated Wall or Wall and Roof /Ceiling Assemblies, Plastic Interior Finish Materials, Plastic I 1.3.2 Reference Standards (see Table 2 for Exterior Building Panels, Wall /Ceiling Coating Systems, editions) : Interior or Exterior Finish Systems. 1.3.2.1 ASTM International (ASTM): 1.3.2.3 National Fire Protection Association (NFPA): 1.3.2.1.1 ASTM C177, Test Method for Steady - State Heat Flux Measurements and Thermal Transmission 1.3.2.3.1 NFPA 259, Test Method for Potential Properties by Means of the Guarded Hot Plate Apparatus. Heat of Building Materials. 2 '°""41‘. ICC Y i3.:+ ✓k'. T , ' ',+' "y"�, . . � � '' .. y E . � `� . iS # #sr .� tts+�'-'+ 5 te"f»'' www.icc - es.orq I (800) 423 -6587 I (562) 699 -0543 A Subsidiary of the International Code Council° ACCEPTANCE CRITERIA FOR SPRAY - APPLIED FOAM PLASTIC INSULATION AC377 Approved June 2012 Compliance date June 1, 2013 Previously revised June 2011, October 2010, June 2010, November 2009, June 2009, May 2008, October 2007 PREFACE Evaluation reports issued by ICC Evaluation Service, LLC (ICC -ES), are based upon performance features of the International family of codes. (Some reports may also reference older code families such as the BOLA National Codes, the Standard Codes, and the Uniform Codes.) Section 104.11 of the Internat Building Co de ® reads as follows: The provisions of this code are not intended to prevent the installation of any materials or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety. This acceptance criteria has been issued to provide interested parties with guidelines for demonstrating compliance with performance features of the codes referenced in the criteria. The criteria was developed through a transparent process involving public hearings of the ICC -ES Evaluation Committee, and /or on -line postings where public comment was solicited. New acceptance criteria will only have an "approved" date, which is the date the document was approved by the Evaluation Committee. When existing acceptance criteria are revised, the Evaluation Committee will decide whether the revised document should carry only an "approved" date, or an "approved" date combined with a "compliance" date. The compliance date is the date by which relevant evaluation reports must comply with the requirements of the criteria. See the ICC -ES web site for more information on compliance dates. If this criteria is a revised edition, a solid vertical line (1) in the margin within the criteria indicates a change from the previous edition. A deletion indicator (-a) is provided in the margin where any significant woring has been deleted. ICC -ES may consider alternate criteria for report approval, provided the report applicant submits data demonstrating that the alternate criteria are at least equivalent to the criteria set forth in this document, and otherwise demonstrate compliance with the performance features of the codes. ICC -ES retains the right to refuse to issue or renew any evaluation report, if the applicable product, material, or method of construction is such that either unusual care with its installation or use must be exercised for satisfactory performance, or if malfunctioning is apt to cause injury or unreasonable damage. NOTE: The Preface for ICC-ES acceptance criteria was revised in July 2011 to reflect changes in policy. Acceptance criteria are developed for use solely by ICC -ES for purpose of issuing ICC -ES evaluation reports. Copyright © 2012 Per Lift Application Applicators should apply a maximum pass thickness of 2 inches, with a minimum of 30 minutes between passes. Health and Safety Information Appropriate literature has been assembled which pro- vides information concerning the health and safety precautions that must be observed when handling materials used to produce foam made with the Bayseal CC X system. Before working with this product, you must read and become familiar with the available information on its risks, proper use and handling. This cannot be overemphasized. Informa- tion is available in several forms, e.g., material safety data sheets, product labels, and safe use and handling guidelines. More resources are available at spray - polyurethane.com, polyurethane.org, sprayfoam.org, baycareonline.com, or by contacting the Bayer Ma- terialScience Product Safety and Regulatory Affairs Department in Pittsburgh, PA. Note: The information contained in this bulletin is current as of March 2012, please contact Bayer MaterialScience to determine whether this publication has been revised. Bayer MaterialScience LLC 100 Bayer Road • Pittsburgh, PA 15205 -9741 • Phone: 1- 800 -662 -2927 • www.spf.bayermaterialscience.com The manner in which you use and the purpose to which you put and utilize our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products, technical assistance and information to determine to your own satisfaction whether our products, technical assistance and information are .•iit.bIP for your intended uses and applications. This application - specific analysis must at least include testing to determine suitability from a technical as well as health, safety, and environmental standpoint. Such testing has not necessarily been done by us. 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Sales Offices 2400 Spring Steubner Road West, Spring, TX 77389 • 1-800 -221 -3626 • Fax: 1- 281 - 288 -6450 Bayseal CC X 3/12 Page 4 of 4 — Document contains important information and must be read in its entirety. Processing Equipment Thermal Barrier 2:1 transfer pumps are recommended for material The International Building Code and International transfer fioin container to the proportioner. The plural Residential Code require that SPF be separated from component proportioner must be capable of supply- the interior of a building by an approved fifteen ing each component within ± 2% of the desired 1:1 (15) minute thermal bather, such as 1/2" gypsum mixing ratio by volume. Hose heaters should be wall board or equivalent, installed per manufacturer's set to deliver 120 °F to 135 °F materials to the spray instructions and corresponding code requirements. gun. These settings will ensure thorough mixing in The International Building Code allows for omission the spray gun mix chamber in typical applications. of the prescribed thermal barrier in certain instance, Optimum hose pressure and temperature will vary such as: with equipment type and condition, ambient and sub- strate conditions, and the specific application. It is the • attics and crawlspaces with limited access responsibility of the applicator to properly interpret • approval by way of diversified testing, such equipment technical literature, particularly informa- as room corner protocols tion that relates to the acceptable combinations of Local building codes may vary and must be consulted gun chamber size, proportioner output, and material for applicability of thermal barrier exceptions. pressures. The relationship between proper chamber size and the capacity of the proportioner's pre- heater is critical. Mechanical purge spray guns (specifically Handling Information direct impingement or DI type) are recommended for Applicators should ensure the safety of the jobsite highest foam quality. and construction personnel by posting appropriate signs warning that all "hot work" such as welding, CAUTION: Extreme care must be taken when soldering, and cutting with torches should not take removing and reinstalling drum transfer pumps so place until a thermal barrier or approved equivalent as NOT to reverse the "A" and "B" components. is installed over any exposed polyurethane foam. Vapor Retarder Processing Parameters and Physical Characteristics Bayseal CC X system qualifies as a vapor retarder Pre neater Temperature: "A" and "B" 120 -135 °F as defined by the International Code Council and Hose Temperature: "A" and "B" 120-135°F ASHRAE (Class II) at a minimum thickness of one Pressures: 1000-1500 psi (dynamic)* inch. Building construction types with a persistent, Mix Ratio Parts: 1 to 1 by volume "A" to "B" high moisture drive require additional moisture re- Viscosity at 75 °F 400 -500 cps "B " Component mediation. The contractor should consult local build - Shelf Life 6 months © 65 °F to 80 °F ing codes to establish the vapor retarder requirement. • Dependent upon hose length. Page 3 of 4 — Document contains important information and must be read in its entirety. Typical Physical Properties* Properties Test Method Value Fungi Resistance: ASTM G-21 Zero Rating R Value (aged): ASTM C-518 6.9 at 1 inch 24 at 3.5 inches 38 at 5.5 inches' 54 at 7.9 inches' Compressive Strength: ASTM 0-1621 25 psi (nominal) Core Density: ASTM D -1622 2.0 Ibs.fft (nominal) Closed Cell Content: ASTM D -2856 > 90% Tensile Strength: ASTM D -1623 60 psi (nominal) Moisture Vapor Transmission (Permeance): ASTM E -96 0.80 Perms at 1" 0.23 Perms at 3.5" 0.14 Perms at 5.5" 0.10 Perms at 7.9" Water Absorption ASTM D -2842 < 2% Dimensional Stability: ASTM D -2126 < 10% (158°F & 97% R.H.) % Change in Volume Air Leakage Rate: ASTM E -2178 < 0.02 Ls- m-1 Surface Burring Characteristics** ASTM E-84 Flame Spread Index < 25 4- inches Smoke Developed Index < 450 * These items are provided as general information only. They are approximate values and are not part of the product specifications. ** These numerical flame spread values are not a true reflection on how this or any material will perform in actual fire conditions. Values extrapolated from 3.5 -inch thick sample testing. Environmental Consideration and Wind velocities in excess of 12 miles per hour may Substrate Temperatures result in excessive loss of exotherm and interfere Applicators must recognize and anticipate environ- with the mixing efficiency, affecting foam surface, mental conditions prior to application to ensure the cure, and physical properties and will cause over - highest quality foam and to maximize yield. Ambient spray. Precautions must be taken to prevent damage air and substrate temperature, moisture, and wind to adjacent areas from overspray. velocity are all critical determinants of foam quality and selection of the appropriate reactivity formula- tion. Variations in ambient air and substrate tempera- ture will influence the chemical reaction of the two Storage Conditions components, directly affecting the expansion rate, Store drums at 70 °F to-80 °F for a minimum of 48 amount of rise, yield, adhesion and the resultant hours before use. Materials in containers should be physical properties of the foam insulation. maintained at 65 °F to 85 °F while in use. Conditioned trailers or tanks may be necessary. Material tempera- To obtain optimum results, the Bayseal CC X sys- turf should be confirmed with a thermometer or an tem should only be spray - applied to substrates when infrared gun. Do not configure equipment to recircu- ambient air and surface temperatures fall within the late Bayseal CC X system components from propor- range of 30 °F and 120 °F. All substrates to be sprayed tioner back into drum. Do not recirculate or mix other must be free of dirt, soil, grease, oil and moisture suppliers' "A" or `B" component into Bayseal CC X prior to application. Moisture in any form: exces- system containers. sive humidity ( >85 %R.H.), rain, fog, or ice will react chemically and will adversely affect system performance and corresponding physical properties. CAUTION: If components are below suggested Application should not take place when the ambient temperatures, the increased viscosity of the coin- temperature is within 5 °F of the dew point. Primers ponents may cause pump cavitation resulting in may be necessary depending upon conditions; consult unacceptable SPF application. If components are a Bayer MaterialScience LLC technical service rep- above suggested temperatures, there may be loss resentative. of blowing agent resulting in diminished yield. Page 2 of 4 — Document contains important information and must be read in its entirety. 1 OotU)6 s,,f& 1st fir, . le 4,41 go. 076 ' A- G �IC.) �y,tAlat: Si it st)pE B 5 BAYER Bayer MaterialScience fC C6 "0 BAYSEAL CC X Product Information Spray- Applied Polyurethane Foam Insulation Division 7- Thermal and Moisture Protection Product Description Bayseal CC X foam - forming system is available Bayseal closed -cell X (CC X) spray - applied poly- in two grades for warm and cold weather applica- urethane foam insulation is a two component, HFC- tions; suggested ambient substrate temperatures are 245fa blown, medium density, structural system specified below: designed for commercial, industrial and residential insulation applications. System Substrate /Ambient Temperature Bayseal CC X 50 °F to 120 °F Closed -cell polyurethane foam yields a high R -value Bayseal CC XP 30 °F to 80 °F and may help minimize air and moisture infiltration. This product may also help to control problems as- sociated with moisture vapor drive. The fluid applied, expanding nature of Bayseal CC X foam - forming Recommended Uses system during application may also contribute to Walls Unvented Attics increased performance value by helping to seal the Ceilings Floors building envelope. Vented Attics Piping Unvented Crawl Spaces Vented Crawl Spaces The Bayseal CC X foam - forming system is corn- Foundations Concrete Slabs prised of an "A" component or aromatic diisocyanate Ducts Tanks manufactured by Bayer MaterialScience LLC and a Cold Storage Freezers blended `B" component which includes polyols, fire Coolers retarding materials, and additives. As with any product, use of Bayseal CC X foam - forming system must be tested (including, but not Bayseal CC X system has passed the Internationa limited to, field testing) in advance by the user to Code Council Acceptance Criteria 377, for spray- determine suitability. applied polyurethane foam insulation, Appendix X for use without the use of the prescribed ignition bar- rier and without the need for additional fire resistant coating. Page 1 of 4 — Document contains important information and must be read in its entirety.