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061053Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 1 of 6 SECTION 061053 -MISCELLANEOUS ROUGH CARPENTRY PART 1 -GENERAL 1.1 RELATED DOCUMENTS A.Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. B.Unit Prices: Refer to Division 01 Section "Unit Prices" for description of Work in this Section affected by unit prices. 1.2 SUMMARY A.This Section includes the following: 1.Framing with dimension lumber. 2.Rooftop equipment bases and support curbs. 3.Wood blocking,cants,and nailers. 4.Roof sheathing. 5.Board Insulation for thermal stops. 6.Exterior wood trim. 1.3 DEFINITIONS A.Dimension Lumber: Lumber of 2 inches nominal (38 mm actual)or greater but less than 5 inches nominal (114 mm actual)in least dimension. B.Lumber grading agencies, and the abbreviations used to reference them, include the following: 1.NeLMA: Northeastern Lumber Manufacturers' Association. 2.NHLA: National Hardwood Lumber Association. 3.NLGA: National Lumber Grades Authority. 4.SPIB: The Southern Pine Inspection Bureau. 5.WCLIB: West Coast Lumber Inspection Bureau. 6.WWPA: Western Wood Products Association. 1.4 SUBMITTALS A.Product Data:For each type of process and factory-fabricated product. Indicate component materials and dimensions and include construction and application details. 1.Include data for wood-preservative treatment from chemical treatment manufacturer and certification by treating plant that treated materials comply with Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 2 of 6 requirements. Indicate type of preservative used and net amount of preservative retained. 2.For products receiving a waterborne treatment, include statement that moisture content of treated materials was reduced to levels specified before shipment to Project site. 1.5 DELIVERY, STORAGE, AND HANDLING A.Stack lumber flat with spacers between each bundle to provide air circulation. Provide for air circulation around stacks and under coverings. B.Deliver interior wood materials that are to be exposed to view only after building is enclosed and weatherproof, wet work other than painting is dry, and HVAC system is operating and maintaining temperature and humidity at occupancy levels. PART 2 -PRODUCTS 2.1 WOOD PRODUCTS, GENERAL A.Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, provide lumber that complies with the applicable rules of any rules- writing agency certified by the ALSC Board of Review. Provide lumber graded by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated. 1.Factory mark each piece of lumber with grade stamp of grading agency. 2.For exposed lumber indicated to receive a stained or natural finish, omit grade stamp and provide certificates of grade compliance issued by grading agency. 3.Where nominal sizes are indicated, provide actual sizes required by DOC PS 20 for moisture content specified. Where actual sizes are indicated, they are minimum dressed sizes for dry lumber. 4.Provide dressed lumber, S4S, unless otherwise indicated. 2.2 WOOD-PRESERVATIVE-TREATED MATERIALS A.Preservative Treatment by Pressure Process: AWPA C2,except that lumber that is not in contact with the ground and is continuously protected from liquid water may be treated according to AWPA C31 with inorganic boron (SBX). 1.Preservative Chemicals: Acceptable to authorities having jurisdiction and containing no arsenic or chromium. 2.For exposed items indicated to receive a stained or natural finish, use chemical formulations that do not require incising, contain colorants, bleed through, or otherwise adversely affect finishes. Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 3 of 6 B.Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. Do not use material that is warped or does not comply with requirements for untreated material. C.Application: Treat the following: 1.Wood cants, nailers, curbs, equipment support bases, blocking, stripping, and similar members in connection with roofing, flashing, vapor barriers, and waterproofing. 2.3 MISCELLANEOUS LUMBER A.General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following: 1.Blocking. 2.Nailers. 3.Rooftop equipment bases and support curbs. 4.Cants. B.For items of dimension lumber size, provide Construction or No.2 grade lumber with 19 percent maximum moisture content of any species. C.For concealed boards, provide lumber with 19 percent maximum moisture content andthe following species and grades: 1.Mixed southern pine, No.2 grade; SPIB. 2.Hem-fir or hem-fir (north), Construction or 2 Common grade; NLGA, WCLIB, or WWPA. 3.Northern species, No.2 Common grade; NLGA. D.For blocking not used for attachment of other construction Utility, Stud, or No.3 grade lumber of any species may be used provided that it is cut and selected to eliminate defects that will interfere with its attachment and purpose. E.For blocking and nailers used for attachment of other construction, select and cut lumber to eliminate knots and other defects that will interfere with attachment of other work. 2.4 EXTERIOR WOOD TRIM A.General: Provide kiln-dried finished (surfaced) material without finger-jointing, unless otherwise indicated. B.Hardwood Lumber Trim for Transparent (Stain or Clear) Finish: 5/4 x 6-inch nominal; Clear Honduran mahogany decking. Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 4 of 6 2.5 PLYWOOD ROOF SHEATHING PANELS A.Plywood Roof Sheathing: Exterior, Structural I sheathing. 1.Span Rating: Not less than 32/16. 2.Nominal Thickness: Not less than 17/32 inch (14 mm). 2.6 BOARD INSULATION A.Foil-Faced, Polyisocyanurate Board Insulation: ASTM C 1289, Type I, Class 1 or 2, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, based on tests performed on unfaced core on thicknesses up to 4 inches (101 mm). 1.Manufacturers: a.Atlas Roofing Corporation. b.Dow Chemical Company. c.Rmax, Inc. 2.7 FASTENERS A.General: Provide fasteners of size and type indicated that comply with requirements specified in this Article for material and manufacture. 1.Where carpentry is exposed to weather, in ground contact, pressure-preservative treated,or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M except provide exposed fasteners of Type 304 stainless steel. B.Nails, Brads, and Staples: ASTM F 1667. C.Power-Driven Fasteners: NES NER-272. D.Wood Screws: ASME B18.6.1. E.Lag Bolts: ASME B18.2.1 (ASME B18.2.3.8M). F.Bolts: Steel bolts complying with ASTM A 307, Grade A (ASTM F 568M, Property Class 4.6); with ASTM A 563 (ASTM A 563M)hex nuts and, where indicated, flat washers. 2.8 MISCELLANEOUS ACCESSORIES A.Expandable Foam: Low expansion expandable foam sealant for small cracks and voids. 1.Product: Touch-n-Foam Home Sealant; Convenience Products, Fenton, MO. Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 5 of 6 PART 3 -EXECUTION 3.1 INSTALLATION, GENERAL A.Set carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit carpentry to other construction; scribe and cope as needed for accurate fit. Locate nailers, blocking, and similar supports to comply with requirements for attaching other construction. B.Framing Standard: Comply with AF&PA's "Details for Conventional Wood Frame Construction," unless otherwise indicated. C.Provide blocking and framing as indicated and as required to support facing materials and trim. D.Sort and select lumber so that natural characteristics will not interfere with installation or with fastening other materials to lumber. Do not use materials with defects that interfere with function of member or pieces that are too small to use with minimum number of joints or optimum joint arrangement. E.Securely attach carpentry work to substrate by anchoring and fastening as indicated, complying with the following: 1.NES NER-272 for power-driven fasteners. 2.Table 2304.9.1, "Fastening Schedule," in ICC's International Building Code. 3.Table 602.3(1), "Fastener Schedule for Structural Members," and Table 602.3(2), "Alternate Attachments," in ICC's International One-and Two-Family Dwelling Code. F.Use common wire nails, unless otherwise indicated. Select fasteners of size that will not fully penetrate members where opposite side will be exposed to view or will receive finish materials. Make tight connections between members. Install fasteners without splitting wood; do not countersink nail heads, unless otherwise indicated. 3.2 WOOD BLOCKING, AND NAILER INSTALLATION A.Install where indicated and where required for attaching other work. Form to shapes indicated and cut as required for true line and level of attached work. Coordinate locations with other work involved. B.Attach items to substrates to support applied loading. Recess bolts and nuts flush with surfaces, unless otherwise indicated. C.Provide permanent grounds of dressed, pressure-preservative-treated, key-beveled lumber not less than 1-1/2 inches (38 mm)wide and of thickness required to bring face of ground to exact thickness of finish material. Remove temporary grounds when no longer required. Roofing Replacement May 14, 2015 South Street Apartments 061053 MISCELLANEOUS ROUGH CARPENTRY Page 6 of 6 3.3 WOOD TRIM INSTALLATION A.Install with minimum number of joints practical, using full-length pieces from maximum lengths of lumber available. Do not use pieces less than 84 inches (2050 mm)long except where necessary. Stagger joints in adjacent and related standing and running trim. Cope at returns and miter at corners to produce tight-fitting joints with full-surface contact throughout length of joint. Use scarf joints for end-to-end joints. 1.Drill pilot holes in hardwood before fastening to prevent splitting. Fasten with square drive stainless steel finish screws as required to prevent movement or warping. Countersink fastener heads and leave heads exposed. 2.Install to tolerance of 1/8 inch in 96 inches (3 mm in 2438 mm)for level and plumb. Install adjoining finish carpentry with 1/32-inch (0.8-mm)maximum offset for flush installation and 1/16-inch (1.6-mm)maximum offset for reveal installation. 3.4 WOOD SHEATHING AND THERMAL STOP INSTALLATION A.Roof Panel Replacement: Inspect existing wood sheathing for water damage, dry rot, mildew or other defect that will affect structural performance. Locate existing framing members and cut out plywood in panels no smaller than 24-inches wide by 48-inches long and to ensure that at that replacement panels will span at least three joists with face grain running perpendicular to the direction of framing members.Payment for replacement of damaged roof panels is covered under Division 1 Section “Unit Prices. B.Roof Panel Installation for Thermal Stops: Layout removal of 24-inch wide strip of sheathing with exterior wall locations and existing framing members. Remove existing roof sheathing to expose framing. Install blocking and thermal insulation for full depth of joists space. Foam around edges of board insulation and reinstall roof panel in lengths long enough to span at least three joists with face grain running perpendicular to framing. End butt joints perpendicular to face grain on framing members or solid blocking. 3.5 PROTECTION A.Protect wood that has been treated with inorganic boron (SBX) from weather. If, despite protection, inorganic boron-treated wood becomes wet, apply EPA-registered borate treatment. Apply borate solution by spraying to comply with EPA-registered label. B.Protect rough carpentry from weather. If, despite protection, rough carpentry becomes wet, apply EPA-registered borate treatment. Apply borate solution by spraying to comply with EPA-registered label. END OF SECTION 061053