075323MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 1
SECTION 07 53 23 - ROOFING (Adhered EPDM roof system)
PART 1 - GENERAL
1.01 General Conditions, Supplementary Conditions and applicable parts of Division 1 form a part
of this Specification and the Contractor shall consult them in detail for instructions.
1.02 The Drawings on which this Contract is based are listed in Section 00 86 00.1 and 00 86
00.2. Consult all Drawings, note all conditions that may affect the Work and care for same in
executing the Contract.
1.03 The Work to be performed under this Section shall include furnishing all labor, materials and
equipment required to do all the single ply roofing and related Work as shown on the
Drawings or herein specified.
Include the following:
A. Water test and verify free flow at all drains in the work areas prior to beginning work.
B. Removal of gravel and repairs to existing roofing and or insulation where indicated.
C. Removal of existing roofing package where indicated.
D. Legal disposal of all debris. Provide necessary dumpsters.
E. New Vapor Barrier.
F. New mechanically and adhesive fastened insulation and reroof board where indicated.
G. New tapered insulation, crickets, diverters where indicated.
H. Direct adhered EPDM membrane where indicated.
I. Direct adhered PVC membrane at Leeds entry canopy only.
J. New roof scuttle where indicated.
K. New metal edge strips, fascias and copings.
L. New gutters and down leaders with splash block or to subsurface drain connection.
M. Wood blocking and nailers associated with the roofing.
N. New flashings and repair of existing metal flashings to remain.
O. New service tread walkway pads.
P. Hot Dipped Galvanized Ladder (RK Finn Ryan).
Q. New courtyard ballasted safety guard rails system with traffic pad slip sheet.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 2
R. New scuppers and aluminum down leaders.
S. Install New snow guards to existing standing seam metal roofs (Leeds).
T. Rework existing drains and replace scuppers at all existing drains as shown.
U. Furnish and install access door panel in ceiling for access to roof drain (RK Finn Ryan).
V. Staging, hoisting and related support for the performance of the work.
1.04 Every detail and condition is not specifically illustrated by a detail Drawing. It is the intent of
this Section, however, that every part of the reroofing and repair Work be completed in a
manner to present a finished, watertight product equal in quality to details shown and
specified and so approved by the Architect.
1.05 Shop Drawings
A. Submit the following in accordance with Section 01 33 00:
1. Shop Drawings shall include outline of roof and size, location and type of penetration,
perimeter and penetration details and special details.
B. Shop Drawings shall also show full size details of flashings, gravel stops, fascias, expansion
joints, fittings, curbs, parapet flashings and other metal Work.
1.06 Submittals
A. Submit for approval samples or manufacturer's specifications of the following materials in
accordance with applicable requirements under Section 01 33 00:
1. Membrane and flashings (all types)
2. Bonding adhesive, splicing cement, lap sealant and related materials supplied by the
membrane manufacturer
3. Vapor Barrier
4. Rigid insulation and cover board
5. Aluminum edge fascia and trim
6. Fastenings (all types)
7. Warranty type and period
8. Wood nailer and plywood
9. Service tread walkway pads
10. New scuttle
11. Snow Guards
1.07 Related Sections
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 3
A. Section 01 27 00 Unit Pricing
B. Section 02 41 19 -Selective Demolition
C. Section 06 10 00 – Rough Carpentry
1.08 Acceptance of Installation Conditions
A. This Contractor shall be fully responsible for the proper execution and performance of the
Work described herein.
1.9 Quality Assurance
A. Inspection: Upon completion of the single ply roofing installation, an inspection shall he
made by a representative of the roofing manufacturer to ascertain that the roofing system has
been installed according to the manufacturer's specifications and details.
B. The Roofing System must achieve a UL Class A.
C. The specified roofing assembly must have been successfully tested by a qualified testing
agency to resist the design uplift pressures calculated according to:
ANSI/SPRI WD-1 "Wind Design Standard Practice for Roofing Assemblies”
American Society of Civil Engineers (ASCE 7)
International Building Code (IBC) as amended and adopted by the current
Massachusetts Building code.
However, for required fastening patterns, the roofing system design and installation shall be
installed to meet the fastening pattern attachment requirements of Factory Mutual 1-90,
100MPH, including the prescriptive enhancements at all perimeter and corner conditions”
Design Uplift Ratings
Field 90 psf
Perimeter 120 psf
Corners 165 psf
Rigid insulation and cover-board shall be fastened to the deck as indicated using approved
fasteners and adhesives. Attachment shall be at a minimum and maybe increased per the
manufacturer requirements:
Mechanical Fasteners: Field 16 Fasteners per 4’x8’ sheet
Perimeter 24 Fasteners per 4’x8’ sheet
Corner 32 Fasteners per 4’x8’ sheet
Adhesive Fastened: Field 6 inch ribbons O.C.
Perimeter 4 inch ribbons O.C.
Corner 4 inch ribbons O.C.
and as approved by the membrane manufacturer and the Architect to comply with the terms
of the specified warranty and wind speed. Fasteners shall be as approved by the
manufacturer.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 4
1.10 Product, Delivery, Storage and Handling
A. Deliver materials in original unopened containers.
B. Containers shall be labeled with manufacturer's name, brand name, installation instructions
and identification of various items.
C. Store materials, except membrane, in dry area and protect. Damaged materials shall be
replaced at Contractor's expense.
D. Store materials, except membrane, between 60 degrees F and 80 degrees F. If exposed to
lower temperatures, restore to proper temperatures before using.
1.11 Job Conditions
A. Do not use oil base or plastic roof cement.
B. Do not allow waste products (petroleum, grease, oil, solvents, vegetable or mineral oil,
animal fat) or direct steam venting to come in contact with single ply roofing system.
C. Do not expose membrane and accessories to a constant temperature in excess of 180
degrees F.
D. Do not breathe cement and bonding adhesive vapors or use near fire.
E. Membrane splice wash used in the splicing procedure is extremely flammable; do not use
near fire or flame or in a confined area. Dispense only from a UL listed or approved safety
can.
F. Splicing and bonding surfaces shall be dry and clean.
G. Material Safety Data Sheets (MSDS) must be on location at all times during the
transportation, storage and application of materials.
H. When positioning membrane sheets, exercise care to locate all field splices away from low
spots and out of drain sumps. All field splices should be shingled to prevent bucking of
water.
I. When loading materials onto the roof, the Carlisle Authorized Roofing Applicator must comply
with the requirements of the building owner to prevent overloading and possible disturbance
to the building structure.
J. If single ply roofing system is installed in cold temperatures, follow specified precautions for
storage of materials and expose only enough cement and adhesive to be used within a four
(4) hour period. No installation procedure that involves adhesives or bonding shall take place
when the temperature is below 25 degrees F.
K. Roof surface shall be free of ponded water, ice or snow.
1.12 Guarantee-Warranty
A. This Contractor shall furnish a written warranty stating that all Work executed under this
Section will be free from defects of material and workmanship for a period of two (2) year
from the date of final acceptance by the Owner. The Contractor shall also furnish a Thirty
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 5
(30) year manufacturers' warranty equal to the Carlisle "Golden Seal" warranty for the Total
Roof Roofing System including but not limited to including metal trim, metal flashings and
metal fascias. The maximum wind speed coverage shall be peak gusts of 100 mph
measured at 10 meters above ground level. Certification is required with bid submittal
indicating the manufacturer has reviewed and agreed to such wind coverage.
The Total Roofing System is defined as the following materials: Membrane, Flashings,
Counterflashings, Adhesives and Sealants, Insulation, Recovery Board, Fasteners, Fastener
Plates, Fastener Strips, Hard Rubber or Metal Edging, Metal Termination Bars, and any other
products utilized in this installation.
B. This Contractor further states that he will, at his own expense, repair and replace all such
defective materials or workmanship and all other Work damaged thereby which is so
damaged during the two (2) year warranty period. The roofing manufacturer will, at his own
expense, repair and replace all defective materials and workmanship covered by their
warranty and will repair any leak for the Thirty (30) year warranty period.
C. The manufacturer shall also furnish a written warranty stating that the membrane material will
not prematurely deteriorate to the point of failure because of weathering for a period of thirty
(30) years.
D. Pro-rated System Warranties shall not be accepted.
E. Evidence of the manufacturer's warranty reserve shall be included as part of the project
submittals for the specifier's approval.
F. The roofer shall be an authorized Firestone applicator or shall hire a Firestone
licensed applicator to complete the tie-in portion of work adjacent to the existing roof
not in contract. The required tie-in detail is to be reviewed and accepted by Firestone
and to be inspected by their field technical representative for acceptance. Verification
that Firestone has reviewed and accepted the tie-in work and that it is included in the
new warranty and that the existing 30-year warranty for the adjacent roof remains in
full effect will be required.
PART 2 - PRODUCTS
2.01 Single Ply EPDM Membrane - Directly Adhered
A. Furnish the rubber membrane roofing system as manufactured by the Carlisle Tire and
Rubber Co., Carlisle, PA, Versigard Co. Inc., Firestone Rubber Co. Inc., or approved equal
as indicated on the Drawings and specified in the Contract Documents.
B. For the purpose of establishing a standard of quality only, this Specification has been written
using the material requirements and installation procedure for Design "A" established by the
Carlisle Tire and Rubber Co.
C. All materials used in the roofing system shall be as furnished by the manufacturer selected.
1. The membrane shall be Sure-Seal 0.090 inch thick, maximum ten feet wide, length
determined by job conditions, EPDM (Ethylene Propylene Diene Monomer) compound
elastomer conforming to the following minimum physical properties. The membrane
shall conform to the minimum physical properties of ASTM D4637.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 6
Property Test Method Specification
Color Grey/Black
Tolerance on Nominal Thickness, % ASTM D 412 +/-10
Tensile Strength Min. PSI ASTM D 412 1305
Elongation, Ultimate Min, % ASTM D 412 350
Tear Resistance Min, LBF/In ASTM D 624 175
(Die C)
Factory Seam Strength Min Modified Membrane
ASTM D 816 Rupture
Resistance to Heat Aging ASTM D 573
Properties after 4 weeks @ 240°F
Tensile strength min. psi ASTM D 412 1200
Elongation, ultimate min,% ASTM D 412 225
Tear Resistance Min. lbf/in ASTM D 624 150
Linear dimensional change max,% ASTM D 1204 +/-2
Ozone Resistance
Condition after exposure to 100pphm ASTM D 1149 No Cracks
Ozone in air for 168 h @ 104°F
Specimen is at 50% strain
Brittleness Temperature Max.
degrees ASTM D 746 -75
Resistance to Water Absorption ASTM D 471
Change in mass max, after 7d
immersion @ 158°F, % 4
Water Vapor Permeability ASTM E 96 2.0
max, perm-mils (Proc B or BW)
Resistance to Outdoor (Ultraviolet)
Weathering Properties after
Langleys EMMAQUA: 50%
strain, calendar sheeting
Tensile strength min, psi ASTM D 412 1200
Elongation min, % ASTM D 412 225
Sheet Composition ASTM D 297
Weight percent of polymer that
is EPDM, min, % 100
Weight percent of sheet that is
EPDM polymer, min, % 30
2. Flashing shall be 0.060 inches thick, furnished by membrane manufacturer.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 7
3. Bonding adhesive shall be as furnished by the membrane manufacturer shall be
compatible with all materials to which the membrane is to be bonded.
4. Splicing cement shall be as furnished by the membrane manufacturer.
4A. Splice Tape: Sure-Seal SecurTAPE and primer as furnished by the manufacturer.
5. Lap sealant for sealing the exposed edge of the splices shall be trowel or gun
consistency as furnished by the membrane manufacturer.
6. Water cutoff mastic shall be as furnished by the membrane manufacturer.
7. Prefabricated accessories (pipe seals, etc.) shall be as furnished by the membrane
manufacturer.
8. Temporary sealant shall be as furnished by the membrane manufacturer.
9. Pourable sealer shall be compatible with materials with which it is used, furnished by
membrane manufacturer.
10. Securement Strips and Fasteners: 0.045 inch reinforced securement strips and
fasteners furnished by membrane manufacturer.
11. Splice Wash shall be furnished by membrane manufacturer.
2.02 Single Ply PVC Membrane - Directly Adhered at Leeds School Entry Canopy Only
1. Furnish the PVC membrane roofing system as manufactured by Carlisle SynTec Inc. as
indicated on the drawings and specified in the contract documents, or equal as approved by
the Architect.
2. For the purposes of establishing a standard of quality, the products of Carlisle SynTec Inc.
are specified.
Acceptable product/manufacturers:
A. Sure-Flex PVC 80 mil. (30 year Warranty System) as manufactured by Carlisle
SynTec Inc.
B. Sarnafil G410 80 mil. PVC (30 year Warranty System) as manufactured by Sika
Sarnafil Inc.
C. Johns Manville PVC 80 mil. (30 year Warranty System) as manufactured by Johns
Manville Inc.
3. All products (including insulation, fasteners, fastening plates, and pre-fabricated accessories)
must be manufactured and supplied by the roofing system manufacturer and covered by the
required thirty (30) year Full-System Warranty covering windstorms up to 80 MPH
2.03 PVC Membrane
1. Sure-Flex PVC 80 mils thickness, reinforced membrane.
2. Furnish Sure-Flex PVC 80-mil thick Gray reinforced PVC (polyvinyl chloride) membrane as
needed to complete the roofing system. Membrane thickness over the reinforcing scrim (top-
ply thickness) shall be nominal .024-mil or thicker.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 8
3. The Sure-Flex PVC may be adhered directly to compatible insulations or compatible
substrates with sufficient peel and uplift resistance.
4. Acceptable substrates
a. Insulations
b. Smooth-surfaced, exterior-grade plywood
c. Cellular concrete with smooth darby finish
d. Metal
5. Flashing Membrane
Flashing membrane shall be as supplied by Carlisle SynTex. Flashing membranes are
generally the same material as the roofing membrane unless specified differently in the detail
drawings. 60-mil flashing is acceptable if approved and warranted by the manufacturer under
its full-system 30-year warranty.
6. Membrane Adhesive
A. Low VOC PVC Bonding Adhesive: A high strength solvent-based contact adhesive that
allows bonding of PVC membrane to various porous and non-porous substrates. It is
specially formulated using a blend of VOC exempt and nonexempt solvent to be in
compliance with the state of California Clean Air Act of 1988 (updated in 1997) and as
further regulated by California’s Air Quality Control Districts listing VOC grams per liter
limitations. This product also meets the <250 gpl VOC content requirements of the OTC
Model Rule for Single Ply Roofing Adhesives.
B. Water Cut-Off Mastic: Used as mastic to prevent moisture migration at drains,
compression terminations and beneath conventional metal edging (at a coverage rate of
approximately 10' per tube or 100' per gallon).
C. Universal Single-Ply Sealant: A 100% solids, solvent free, one-part, polyether
sealant that provides a weather tight seal to a variety of building substrates. Can be used
as a termination bar sealant or for use in counterflashing, coping, and scupper details.
D. PVC One-Part Pourable Sealer: A one-part, moisture curing, elastomeric polyether
sealant used to fill Molded Sealant Pockets. Packaged in four 1/2 gallon pouches per
plastic bucket. One pouch will fill one Molded Sealant Pocket.
E. Foil Grip Aluminum Tape: A general-purpose pressure-sensitive sealant used as a
bond break at joints in PVC Coated Metal. Packaged in rolls 2" wide by 100' long.
F. PVC Membrane Cleaner: Used to prepare membrane that has been exposed to the
elements for approximately 7 days prior to heat welding or to remove general
construction dirt at an approximate coverage rate of 400 square feet per gallon (one
surface).
7. Insulation Adhesive:
A. FAST Adhesive: A two component insulating urethane adhesive used to attach
insulation. Adhesives by other manufacturers are acceptable as required by the roof
system manufacturer in order to fulfill all requirements of FM-90 and as necessary to
obtain all manufacturers guarantees and the required thirty (30) year Full-System
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 9
Warranty covering windstorms up to 100 MPH.
2.04 Rigid Thermal Insulation and Reroof Board – Minimum R Value = 25
A. Rigid insulations shall be Sure-Seal Polyisocyanurate HP H Polyiso insulation as
manufactured by Carlisle. Panels have polyisocyanurate foam core and are faced with glass
fiber reinforced felt facers meeting ASTM C 1289-06, Type II, Class 1, Grade 3 (25 psi).
Panels shall be 4 feet x 8 feet. Thickness of insulation shall be as indicated.
B. Tapered cant at roof drains and tapered edge strip shall be rigid impregnated fiberboard as
manufactured by Carlisle Syn-Tec. Dimension shall be as indicated or required to suit
conditions.
C. Tapered insulation shall be HP-H Tapered POLYISO rigid insulation as manufactured by
Carlisle. Panels have polyisocyanurate foam core and are faced with glass fiber reinforced
felt facers meeting ASTM C 1289-06, Type II, Class 1, Grade 3 (25 psi). Panels shall be 4
feet x 8 feet. Thickness of insulation shall be as indicated.
D. Tapered cant at roof drains and tapered roof edges.
E. High Density Cover Board shall be high density , closed cell polyisocyanurate foam core
laminated to coated-glass fiber-mat facer as manufactured Carlisle SecurShield HD Plus,
1/2” thick 4’ x 8’ panel weight 11 lbs with an R-value of 2.5.
2.05 ADHESIVES, CLEANERS AND SEALANTS
B. Low VOC Bonding Adhesive: A low VOC (volatile organic compound) bonding adhesive
(less than 250 grams/liter) used for bonding Sure-Seal/Sure-White EPDM membranes to
various surfaces. Available in 5 gallon pails.
C. Sure-Seal SecurTAPE™: A 6" wide (used for Mechanically Fastened Roofing Systems
and 30-year Warranty Systems) by 100' long splice tape used for splicing adjoining sections
of EPDM membrane. Complies with the South Coast Air Quality Management District
Rule 1168.
D. Low VOC EPDM Primer - A low VOC (volatile organic compound) primer (less than 250
grams/liter) for use with SecurTape or Pressure-Sensitive products.
E. Pourable Sealer: A black, two-component, solvent-free, polyurethane based product used
for tie-ins and as a sealant around hard-to-flash membrane penetrating objects such as
clusters of pipes and for a daily seal when the completion of flashings and terminations
cannot be completed by the end of each work day.
2.06 Metal Ballast Stop and Fascias, Edge Strips, Scuppers
A. General: All metal edging s shall be tested and meet ANSI/SPRI ES-1 standards and comply
with International Building Code.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 10
B. Metal ballast stop, edge strip/fascia, scuppers and related metal work shall be SecurEdge
2000,m .050 inch prefinished aluminum in color as selected with extend fascia extender (2
piece), as manufactured by Carlisle.
C. SecurEdge Coping: Incorporates a 20 gauge anchor cleat with 4 pre-slotted holes, a
concealed joint cover and 10 foot continuous sections of coping cap; can accommodate
minimum 5 “ wide parapet walls. Metal coping cap color shall be as designated by the
Owner's Representative.
D. Termination Bar: A 1” wide and .098” thick extruded aluminum bar pre-punched 6” on center;
incorporates a sealant ledge to support Lap Sealant and provide increased stability for
membrane terminations.
E. Provide all accessories necessary for a complete installation including factory-fabricated
corners, concealed corner plates, corners and related items.
F. Color shall be selected from manufacturer’s full range of colors including premium colors.
2.07 Metal Fascia Extenders, Gutters and Downspouts
A. Metal fascia extenders and similar metal work shall be 0.050 inch aluminum alloy 5005-H 14.
Splice joints shall be 6 inches long concealed splice plates at 12’-0” O.C. Allow ¼ inch at all
butt joints for expansion. Allow 1/4 inch at all butt joints for expansion.
B. Gutters shall be 0.050 inch aluminum alloy 5005-H14, continuous with support brackets
spaced not to exceed 18 inches O.C. Seal aluminum seams with epoxy metal seam cement
and where required for strength, rivet seams and joints. Corners shall be shop mitered and
shop welded of same material as the metal fascia and edge strips. Space expansion joints
no greater than 30 feet and conceal expansion provisions.
C. Downspouts shall be fabricated in continuous lengths of 0.040 aluminum alloy as specified
above. Downspouts shall be 3 inches by 4 inches. Seams shall be concealed where
possible. Fasten to wall with 0.040 aluminum straps to match downspout at 6'0" on center.
Fold edges to avoid sharp corners and obstructions.
D. Comply with "Architectural Sheet Metal Manual" by SMACNA for each general category of
work.
E. All fastenings for gutters and downspouts shall be non-corroding screw type or drilled
expansion type fastenings as approved by the Architect.
F. Color shall be Kynar baked enamel to match the ballast stop/edge strip.
G. Color shall be selected from manufacturer’s full range of colors including premium colors.
2.08 Vapor Barrier
A. Carlisle 725TR Air & Vapor Barrier / Temporary Roof: 725TR is a 40-mil composite consisting
of 35-mils of self-adhering rubberized asphalt factory laminated to a 5-mil polyethylene film
with an adhesion textured surface. 725TR roll dimensions are 39” x 75’ and the product is
applied after priming an acceptable substrate with CCW 702, 702-LV or Cav-Grip primer.
2.09 Wood Blocking and Plywood
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 11
A. All lumber used for blocking, nailers and fascias, etc. shall be new and in good sound
condition of nominal sizes, as indicated on the Drawings, dressed 4 sides.
B. All lumber shall be preservative pressure treated with wolmanized salts, each piece shall be
so labelled.
C. All plywood used as filler pieces, etc. shall be new CD exterior grade plywood. Plywood shall
be in good sound conditions of sizes and thicknesses as indicated on the Drawings.
D. All perimeter blocking shall be fastened and anchored in accordance with FM 1-49.
Nailer and Blocking Installation:
1. Nailers shall be anchored to resist a minimum force of 300 pounds per lineal foot
(4,500 Newtons per lineal meter) in any direction. Individual nailer lengths shall not
be less than 3 feet (0.9 meter) long. Nailer fastener spacing shall be at 12 inches
on center or 16 inches (0.4 m) on center if necessary to match the structural framing.
Fasteners shall be staggered 1/3 the nailer width and installed within 6 inches (0.15 m) of
each end. Two fasteners shall be installed at ends of nailer.lengths. Nailer attachment shall
also meet the requirements of the current Factory Mutual Loss Prevention Data Sheet 1-49.
2. Install continuous wood nailers at the perimeter of the entire roof and around roof
projections and penetrations as shown on the Detail Drawings. Existing nailers that
are to remain in place shall be firmly anchored in place to resist a minimum force of
300 pounds per lineal foot (4,500 Newtons per lineal meter) in any direction and shall
be free of rot, excess moisture or deterioration. Only woodwork shown to be reused
in the drawings shall be left in place. All other woodwork shall be removed.
3. The roofing contractor shall evaluate each condition to determine if the nailers are
suitable for reuse. Provide a pull-out test to confirm that existing nailers and blocking
to remain meet the requirements of FM 1-49. Refer to section 01 27 00 Unit Prices
for additional information.
4. Nailer and blocking thickness shall be as required to match substrate or insulation
height to allow a smooth transition of the membrane.
5. Provide stainless steel, corrosion resistant, fasteners when mechanically attaching
roofing products to wood nailers and wood products treated with ACQ (Alkaline
copper Quaternary). When ACQ treated wood is used on steel roof decks or with
metal edge detailing, a separation layer must be placed between the metal and ACQ treated
wood.
2.10 Sheet Copper
A. All sheet copper for repairs shall be American made; manufacturer's trade name and weight
of copper shall be marked on each sheet. Thickness shall match existing in areas of repair.
2.11 Service Tread Walkway Pads
A. Protective surfacing for roof traffic shall be Sure-Seal (black). Pressure-Sensitive Walkway
Pads (with Factory-Applied Tape on the underside of the walkway) adhered to the membrane
surface in conjunction with Sure-Seal Primer. Walkway pads by others, when specified,
must be adhered to the EPDM deck membrane with SecurTAPE/Primer.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 12
B. Roof walkways shall be typically 2'-6" wide unless noted otherwise. Whether show or not, all
roof top equipment shall have walk way pad to service area of each piece of equipment and
connecting to a main circulation route originating from a roof access hatch or main access
point to roof by ladder.
2.12 Roof Scuttle
A. Furnish and install where indicated on plans metal roof scuttle Type S-50 as manufactured by
the Bilco Company, New Haven, Connecticut, or approved equal. Cover shall be 11 ga.
aluminum with 3 inch beaded flange, neatly welded. Insulation shall be glass fiber 1 inch
thickness, fully covered and protected by a metal liner, 18 ga. aluminum. Size of the unit is
30 inches by 36 inches.
2.13 Ballasted Roof Guard Rails with EPDM Traffic Pad Slip Sheet
A. Free standing, non-penetrating, OSHA compliant roof edge railing fall protection system. All
material to be hot dipped galvanized with shop applied safety color paint (White with
reflective tape).
Acceptable manufacturers:
1. Railguard 200 Roof Edge Rail System by Garlock Equipment Company.
2. KeeGuard Roof Fall Protection Railing by Simplified Safety
3. SafetyRail 2000 by Bluewater Manufacturers
2.14 Snow Guards
A. Basis of Design:
Alpine SnowGuards. A division of Vermont Slate & Copper Services Inc.
289 Harrel St. Morrisville, VT 05661, (888) 766-4273
www.alpinesnowguards.com.
B. MATERIALS
1. Snow Guard Block - 6000 Series Aluminum. ( 4 rows each eave)
2. Snow Guard Bracket - 5052-H32 Aluminum.
3. Bolt and Screws - 300 Series Stainless Steel, 3/8” diameter.
C. FINISH:
1. Color to match existing standing seam metal roof system.
2.15 Hot Dipped Galvanized Steel Ladders
A. Fabricate and install steel ladders located at locations shown on drawings. Vertical steel
stringer shall be 5/8 inch x 2 1/2 inch spaced 24 inches apart with 3/4 inch diameter solid
steel rungs welded to stringers round top ends. Space rungs 12 inches on centers vertically,
equally spaced. Fasten ladder to walls with 2 inch x 3/8 inch steel stringer extension clips
with 2 inch return leg at wall, bolted to blocking not over 2'-0" apart unless otherwise detailed
or required. Ladder shall hang from the wall and not touch the roof.
B. All steel items specified herein and as shown on the Drawings for exterior exposed to the
weather use (including lintels) shall be hot dipped galvanized after fabrication. All interior
work in wet areas and all exterior work to be embedded into masonry or concrete shall be hot
dipped galvanized after fabrication. The fabricator shall clean all slag and welds prior to
galvanizing process.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 13
C. Hot dipped galvanizing shall conform to the following ASTM designations:
Steel Pipe: A-120
Structural Steel Shapes: A-123
Assembled Steel Products A-386
Steel Sheets: A-525
Steel Hardware: A-153
D. The galvanizing bath shall contain .05% - .09% nickel, Nigalv by Duncan Galvanizing or
equal. Damaged and abraded spots on hot dipped galvanized steel shall be touched up with
"ZRC" zinc paint as manufactured by ZRC Chemical Products Company, Quincy, MA or
ZIRP by Duncan Galvanizing, Everett, MA. The use of aerosol touch-up material shall be
prohibited. All applications of touch-up material shall be by brush.
E. The galvanizer shall use a dry kettle process whereby the steel is dipped in a pre-flux
solution prior to galvanizing. The use of a flux blanket on the surface of the galvanizing bath
is prohibited to prevent flux inclusions and other imperfections from forming on the
galvanized steel surface.
F. Where the galvanized steel is indicated to be primed or painted, it shall be primed by the
galvanizer within twelve (12) hours of galvanizing and force cured in a facility capable of
maintaining 130 degrees F. This process shall ensure the bond between the freshly
galvanized steel and the shop or field applied topcoat.
G. Thoroughly isolate all non-ferrous items from contact with dissimilar metals, concrete,
masonry and mortar with approved zinc-chromate coating on contact surfaces before
installation.
2.16 Fasteners
A. Fasteners for blocking and insulation shall be of the screw type suggested and required by
the roof membrane manufacturer in order to fulfill all requirements to obtain all manufacturers'
guarantees. Nail fasteners are not permitted. The roofing contractor shall be required to
arrange for "pull-out" tests as deemed necessary by the roofing membrane manufacturer in
order to mechanically fasten to the existing deck. Depending on the type of existing
structural, insulation will be mechanically fastened or adhesively bonded to the deck
structure. Fasteners for blocking shall be a screw type fastener, no nail fasteners will be
accepted.
B. HP-X Fasteners: A heavy duty #15 threaded fastener with a #3 phillips drive used for
insulation securement into steel, wood plank or minimum 15/32 inch thick plywood.
C. Pre-Assembled ASAP Fasteners: A pre-assembled 3” diameter Plastic Plate and # 12
threaded fastener with a #3 drive used for insulation attachment into steel or wood decks.
Installed using OMG Fastening Tools.
D. Polymer Gyptec Fasteners: A non-penetrating, plastic fastener and corresponding 3”
diameter plate used with lightweight deck substrates such as cementitious wood fiber,
gypsum, and lightweight insulating concrete.
E. Lite-Deck Fastener: An oversized diameter metal fastener and associated 3” diameter Lite-
Deck metal plate for used to attach insulation to dense gypsum decks.
.
F. HP Term Bar Nail-Ins: A 1-1/4” long expansion anchor with a zinc plated steel drive pin used
MSBA Accelerated Repair Program
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for fastening the Carlisle Termination Bar or Seam Fastening Plates to concrete, brick, or
block walls.
G. Seam Fastening Plate: A 2” diameter metal fastening plate used in conjunction with RUSS or
EPDM membrane for additional membrane securement.
H. Polymer Seam Plate: A 2” diameter plastic fastening plate incorporating barbs on the
underside of the plate. This plate is required for membrane and RUSS attachment installed
in conjunction with steel roof decks. May also be used for insulation attachment.
I. Insulation Fastening Plates: A nominal 3 inch diameter plastic or metal plate used for
insulation attachment.
J. Sure-Seal Pressure-Sensitive RUSS™ (Reinforced Universal Securement Strip): a 6” or 9”
wide, nominal 45-mil thick clean, cured black reinforced EPDM membrane with 3”or 6” wide
Factory-Applied Tape (FAT) laminated along one edge. The 6” or 9” wide Pressure-Sensitive
RUSS is used horizontally or vertically at the base of walls, curbs, etc., in conjunction with 2”
diameter securement plates or bars below the EPDM deck membrane for additional
membrane securement.
K. Insulation Adhesive:
1. FAST Adhesive: A two component insulating urethane adhesive used to attach
insulation. Packaging formats include 50 and 15 gallon drums as well as Dual
Cartridges and 5 gallon Bag in a Box formats.
2. Carlisle OlyBond 500 BA: a two-component, construction-grade, low-rise, expanding
polyurethane adhesive designed for bonding insulation to various substrates.
2.17 Drains
Rework existing drain bowls and baskets as indicated, provide new stainless steel bolts,
new clamping rings, and new baskets with epoxy paint. Include removal and cleaning of
the clamp ring with installation of new bolts.
2.18 Access Doors and Panels
MANUFACTURERS
A. Acceptable Manufacturers: Subject to compliance with the requirements specified
herein, manufacturers offering products which may be incorporated in the work
include the following, or approved equal:
1. Acudor Products Inc., Cedar Grove, NJ.
2. Karp Associates Inc., Maspeth, NY.
3. Nystrom Products Company, Minneapolis, MN.
4. Williams Brothers Corporation of America, Front Royal, VA.
B. Single Source: All work of this Section shall be produced by a single manufacturer, unless
otherwise approved by the Architect.
C. ACCESS PANELS - FOR FIRE RESISTANCE RATED CONSTRUCTION
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 15
For fire-resistance rated wall and ceiling surfaces: Standard flush panel door meeting the
following requirements:
1. Panel and frame rating: UL “B” label for 90 minutes.
2. Frame type:
a. For ceramic tile walls: 16 gage Type 304 stainless steel flanged frame, with flange
exposed to view 1 inch or less, equal to:
1) Acudor FW-5050 series
2) Karp KRP-150FR series.
3) Nystrom IT series.
4) Williams WB-FRSS Regular series.
b. For masonry walls: 16 gage galvanized bonderized steel flanged frame, with flange
exposed to view 1 inch or less.
1) Acudor FW-5050 series
2) Karp KRP-150FR series.
3) Nystrom IT series.
4) Williams WB-FR series.
c. For gypsum board walls and ceilings: 16 gage galvanized bonderized steel frame,
with 22 gage galvanized steel drywall bead.
1) Acudor FW-5050DW
2) Karp KRP-350FR series.
3) Nystrom IW series.
4) Williams WB-FR series.
3. Door: Insulated Flush panel door as follows:
a. Typical wall types : Flush door, Sandwich construction with 2 inch thick
mineral wool fiber insulation between two layers of 20 gage galvanized
bonderized steel.
b. For ceramic tile walls only: Flush door, Sandwich construction with 2 inch
thick mineral wool fiber insulation between two layers of 20 gage Type
304 stainless steel.
4. Hinge: Flush continuous piano hinge with stainless steel pin.
5. Closer: Spring closer.
6. Latch: Flush cam latch, operated by Allen or Torx head screwdriver.
PART 3 - EXECUTION
3.01 Work List
A. Water test roof drains
B. Remove existing roofing package
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
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C. Remove existing base flashings
D. Level roof surface for acceptance of new work
E. Furnish and install new scuttle where indicated
F. Install Vapor Barrier
G. Install rigid insulation and reroof board where indicated. Insulation thickness shall be as
indicated on drawings
H. Install wood blocking.
I. Apply single-ply membrane and flashings.
J. Install metal edge strips / fascias and copings.
K. Install gutters, scuppers and down leaders. All down leader will have splash blocks unless
noted.
L. Dress-down and repair or replace existing metal flashings to remain where noted.
3.02 Gravel Removal
A. The existing gravel shall be removed by the use of scratching machines set to an elevation to
remove the gravel and a thin portion of the asphalt flood coat over the existing roofing plys.
Repair all blisters on the existing membrane and fill any depressions to allow the new
insulation to be laid flat with no uneven surfaces or spaces.
B. The existing gravel shall be removed by the use of power brooms and other power and hand
tools necessary to provide an even surface for the new insulations. Repair all blisters on the
existing membrane and fill any depressions to allow the new insulation to be laid flat with no
uneven surfaces or spaces.
3.03 Rigid Insulation
3.04 Rigid insulation and cover-board shall be fastened to the deck as indicated using approved
fasteners and adhesives. Attachment shall be at a minimum and maybe increased per the
manufacturer requirements:
Mechanical Fasteners: Field 16 Fasteners per 4’x8’ sheet
Perimeter 24 Fasteners per 4’x8’ sheet
Corner 32 Fasteners per 4’x8’ sheet
Adhesive Fastened: Field 6 inch ribbons O.C.
Perimeter 4 inch ribbons O.C.
Corner 4 inch ribbons O.C.
and as approved by the membrane manufacturer and the Architect to comply with the terms
of the specified warranty and wind speed. Fasteners shall be as approved by the
manufacturer. Joints shall be 1/4 inch or less in width. Joints wider than 1/4 inch shall be
filled with pourable sealer. Offset joints of adjacent boards by half a board longitudinally.
3.04 INSTALLATION - ROOF NAILERS AND BLOCKING
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
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A. General: Provide anchorage for nailers as required for roof and edging to obtain
FM Class A/I-90 rating.
1. Secure nailers and blocking to metal deck with stainless steel screws at
not greater than 12 inch on center spacing, extending a minimum of 3/4-inch
below deck.
2. Secure nailers and blocking to wood substrates with stainless steel
screws at not greater than 12 inch on center spacing, extending a minimum of
1-1/2 inch into board substrates and 3/4 inches into sheet materials.
B. When building up layers of nailers and blocking, fully secure each layer to at least
the one below, alternating location of fasteners, spacing at 12 inches on center.
Provide fasteners in lengths to penetrate through more than one substrate layer of
blocking. Stagger locations of butt ends of boards, such that no two joints are “lined
up”.
C. Ensure finished height of nailers is same as top surface of roof insulation within 1/4-inch,
plus or minus.
3.05 Vapor Barrier
A. Install vapor barrier without tears or punctures. Attach to air barrier membrane in wall
assembly to provide complete seal, if indicated.
3.06 Direct Adhered Membrane System
A. Membrane
The single-ply direct-adhered membrane roofing system shall be applied over the rigid
insulation or reroof board. Installation shall be done by a Roofing Contractor approved by the
membrane manufacturer.
B. Membrane Attachment
1. Position 0.090 inch membrane over approved substrate without stretching.
2. Allow membrane to relax approximately one-half hour prior to bonding.
3. Fold sheet back so that half of the underside of the sheet is exposed. Sheet fold shall
be smooth without wrinkles or buckles.
4. Apply bonding adhesive evenly, without globs or puddles, with a 9 inch plastic core
paint roller. Do not apply bonding adhesive to the splice area. Adhesive shall be firmly
applied to both the sheet and the substrate. One (1) gallon of bonding adhesive,
applied correctly, will cover 60 square feet of finished surface at moderate temperature.
Allow adhesive to dry until it is tacky but will not string or stick to a dry finger touch.
5. Roll the coated membrane into the coated substrate while avoiding wrinkles.
6. Brush down bonded half of the sheet with a pushbroom to achieve maximum contact.
7. Fold back the unbonded half of the sheet and repeat the bonding procedure.
8. Install adjoining sheets in the same manner, lapping edges a minimum of 3 inches.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 18
Note: At all inside angle changes where slope exceeds 2 inches in one horizontal foot,
securement strip is required to be installed.
C. Membrane Splicing with Cement
1. Fold top sheet back about 12 inches. Remove dirt and excess dust by brooming or
wiping with a clean rag or, if necessary, by scrubbing with warm soapy water and
rinsing with clean water. Clean both of the dry mating surfaces at the splice area using
clean natural fiber rags or natural sponges with splice cleaner. The finished surface
should be solid black in color.
2. After thoroughly stirring, apply splicing cement to both surfaces using a 3 or 4 inch
wide, 1/2 inch thick paint brush. Apply cement in the manner and at the rate specified
on the container label. Brush cement on smoothly to obtain 100% coverage. Do not
allow the cement to glob or puddle. Allow cement to dry until it is tacky but will not
string or stick to a dry finger touch.
3. Roll top sheet toward splice area until the cemented surface is nearly touching the
cement on the bottom sheet along the entire length of splice. Allow sheet to fall freely
into place. Avoid stretching and wrinkling while brushing with a hand toward the splice
edge.
4. Roll splice with a 2 inch wide steel roller, using positive pressure, toward the outer edge
of the splice.
5. Clean the splice edge, extending at least 1 inch onto the top and bottom membranes
with Sure-Seal splice cleaner.
6. Apply a bead of lap sealant completely covering the splice edge. Feather the lap
sealant with a specially preformed putty knife or trowel. Complete lap sealant
application of all splices by the end of each working day.
D. Membrane Splicing with Tape
1. General
a. Tape splices shall be a minimum of 5 ½ inches wide using 6 inch wide
SecurTAPE extending 1/8 inch minimum to ½ inch maximum beyond the
splice edge. Field splices at roof drains shall be located outside the drain
sump.
b. Prior to SecurTAPE application, the splice area shall be primed with Sure-Seal
HP-250 or LV-600 Primer.
c. Cold weather restrictions – When temperatures are below 40 degrees F (5
degrees C): Comply with manufacturers recommendations.
2. Position membrane sheet to allow for an approximate 6 inch overlap. Mark the bottom
sheets with an indelible marker ½ inch from the top sheet edge. The pre-marked line on
the membrane edge can also be used as a guide for positioning splice tape.
3. Apply Primer to achieve a thin, even coat on both membrane surfaces. Splice area
must be uniform in color, streak-free and free of globs or puddles.
4. Allow Primer to dry until tacky but does not transfer to a dry finger touch.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 19
5. Unroll approximately 3 feet of SecurTAPE. Align release film with marked line and
press tape down to bottom sheet using firm, even, hand pressure. Continue for the
length of the splice. Tape roll ends must be overlapped 1 inch. Allow top sheet to rest
on release film on back side of tape.
6. Pull release film from SecurTAPE beneath the top sheet and allow the top sheet to fall
freely onto the exposed tape.
7. Press the top sheet onto the tape using firm, even hand pressure across the splice
towards the splice edge.
8. Immediately roll the splice with a 2 inch wide steel roller, using positive pressure. Roll
across the splice edge, not parallel to it.
9. Install a 6 inch wide section (with rounded corners) of Sure-Seal Pressure-Sensitive
Flashing or Sure-Seal Elastoform Flashing over all field splice intersections and seal
edges of flashing with Lap Sealant.
E. Perimeter Membrane Securement
1. Securement shall be provided at the perimeter of each roof level, roof section, curb
flashing, skylight, expansion joint, etc. and at any angle change where slope exceeds 2
inches in one horizontal foot.
2. Securement shall be as follows:
a. EPDM Securement Strip (RUSS) shall be mechanically fastened through the
membrane, insulation and into roof deck with approved fasteners.
b. Field membrane shall be adhered to RUSS with EP-95 splice adhesive.
3.06 Service Tread Walkway Pads
A. Install walkway at all traffic concentration points (such as roof hatches, access doors, rooftop
ladders, etc.) and all locations as identified on the drawings.
3.07 Edge Strips
A. Deck membrane shall be installed over the perimeter water dam or edge strip to the outside
fascia of the building in accord with manufacturers instructions.
B. Edge strip shall be installed and secured according to an installation detail accepted by the
membrane manufacturer. Securement provided by the Contractor shall prevent buckling and
prohibit metal gravel stop from pulling free.
C. Flashing of the edge strip deck flange must extend 3 inches inches minimum past the point of
securement in all directions.
D. Flashing of the edge strip deck flange must provide complete coverage to the flange and
provide a minimum 3 inch wide splice to the adjoining deck membrane. Use the same splice
cement for sealing flashing to the membrane and to the edge strip.
E. Wood Nailer shall be installed at the edge strip perimeter of each roof level, shall be pressure
treated with salt preservatives.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 20
1. Anchor wood nailers to resist a force of 75 pounds per lineal foot in any direction.
The thickness of the nailer shall be such that it conforms to the detail drawings. Any
deviations from the details are to be brought to the attention and approved by the
Architect.
3.08 Flashing
A. Walls, parapets, mechanical equipment, curbs, and similar conditions. Use the longest
pieces of materials which are practicable. All flashings and terminations shall be done in
accordance with the applicable detail.
1. When using flashing at a vertical surface, complete the splice between the flashing and
the main roof sheet before bonding flashing to the vertical surface. The splice shall
extend at least 3 inches beyond the membrane at the angle change.
2. When using a continuation of roofing membrane as flashing, bond the membrane to the
surface to be flashed without "pig ears".
a) Apply bonding adhesive evenly, without globs or puddles, with a 9 inch plastic
core paint roller.
b) Apply bonding adhesive to both the flashing and the surface to which it is being
bonded at a rate covering approximately 60 square feet of finished surface per
gallon.
c) After the bonding adhesive has dried to the point that it does not string or stick to
a dry finger, roll the flashing into the cemented surface. Care must be taken to
ensure that the flashing does not bridge where there is a change of direction.
d) Fasten to the top of the installed flashing under metal counterflashing or coping
cap at a maximum of 12 inches on center.
e) Then install flashing as required to form a continuous membrane seal in each
corner.
3.09 Penetrations
A. General
1. Flash all penetrations passing through the membrane.
2. The flashing seal must be made directly to the penetration passing through the
membrane system.
3. All existing flashing shall be removed.
B. Vent Pipes, Round Supports, etc.
1. Flash pipes with Sure-Seal molded pipe flashings where installation is possible.
2. Molded pipe flashing shall not be cut and patched; deck flanges shall not be
overlapped.
3. Where molded pipe flashings cannot be installed, use field fabricated pipe seals.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
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4. The deck membrane must be secured with a nailer around penetrations larger than 18
inches in diameter.
C. Pitch Pockets
1. Install a new metal pitch dam at existing pitch pockets and seal with pourable sealer.
New dam shall provide minimum 2 inch depth, 1 inch clearance.
D. Roof Drains
1. Remove existing flashing and cement in preparation for water cut-off Mastic and
membrane seal.
2. Provide a smooth finish on the clean mating surfaces between the clamping ring and
the drain base.
3. Taper insulation around drain to prevent membrane from bridging and to provide a
smooth transition from roof surface to drain clamping ring.
4. The seal between the membrane and the drain base shall be provided by water cut-off
mastic under constant, even compression.
5. Follow drain manufacturer's recommended installation procedures.
E. Scuppers
1. After installation of wall flashing, cut flashing at each scupper to insert lining of fabric
flashing.
2. Fabric flashing lining shall be set in water cut-off mastic and firmly secured.
3. Sure-seal flashing must completely overlap scupper flanges and provide 3 inch
minimum surface splice to the wall flashing.
3.10 Surface Splice
A. Correction of splices, tears, etc. may be accomplished by splicing a membrane section over
the affected area.
1. Select repair membrane which is the same material as that to be repaired.
2. Extend the repair membrane section at least 3 inches in every direction from the splice,
tear, etc. to be corrected.
3. To remove field dirt, clean the splice area with soap and water, rinse with clean water,
and dry.
3.11 Daily Seal
A. Care should be exercised to ensure that the water does not flow beneath any completed
sections of roof. Temporarily seal loose edge of membrane with temporary seal when
weather is threatening.
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 22
1. Apply the temporary seal at a rate of 100 lineal feet per gallon (on smooth surface)
twelve (12) inches back from edge of sheet onto exposed substrate surface. If
necessary, use a trowel to spread material in order to achieve a complete seal.
2. After embedding membrane in temporary seal, check for continuous contact. Then
weight the edge, providing continuous pressure over the length of the cutoff.
3. When work is resumed, pull sheet free before continuing installation .
3.12 Installation Controls
A. No membrane work, base flashing or any part of the installation procedure that requires
adhesives or bonding will be permitted with the presence of any precipitation or when the
temperature is below 25 degrees F. This provision will be strictly enforced by the Owner,
Owner's representative and the Architect.
B. No Work that generates excessive noise, dust or vibration which includes but is not limited to
1) removal of gravel, 2) ballast conveying operation, 3) spreading of ballast, etc., shall be
executed during the period when school is in session.
3.13 Sheet Aluminum Installation
A. Anchor work in place with noncorrosive fasteners, adhesives, setting compounds, tapes and
other materials and devices as recommended by manufacturer of each material or system.
Provide for thermal expansion and building movements. Comply with recommendations of
“Architectural Sheet Metal Manual” by SMACNA.
B. Seal moving joints in metal work with elastomeric joint sealants.
C. Clean metal surfaces of substance which could cause corrosion.
D. Water-tight/weatherproof performance of flashing and sheet metal work is required.
3.14 Sheet Copper Repair
A. All sheet copper repair work shall be performed in strict accordance with the recommended
practice and standard specifications of the Copper and Brass Research Association and
Copper and Common Sense as recommended by Revere Copper and Brass, Inc.
3.15 Additional Metal Repair
A. All existing metal work to remain, including existing aluminum cleats, shall be repaired and
refastened as necessary. If material cannot be properly repaired or refastened as approved
by the Architect, it shall be replaced with like materials.
3.16 Roof Scuttle
A. Install roof scuttle in accordance with manufacturer’s recommendations with non-
corroding, screw-type fastenings.
3.17 Access Door – Panel
EXAMINATION
A. Inspect all surfaces and verify that they are in proper condition to receive the work
MSBA Accelerated Repair Program
RK Finn/Ryan Road and Leeds Elementary Schools
Northampton, Massachusetts
07 53 23- 23
of this Section. Verify that prepared openings are ready to receive the work of this
Section and opening dimensions are as indicated on the shop drawings. Verify that
all blocking is set in place and secure.
B. Beginning of installation means acceptance of project conditions.
INSTALLATION
A. Install access panels in accordance with manufacturer’s instructions and direction
from authorities having jurisdiction. Install miscellaneous specialties absolutely
level and in true line, with units securely anchored to the surrounding construction.
B. Test each door and latching device, and make adjustments required to ensure a bind-free
operation and proper latching.
END OF SECTION