075323Roofing Replacement May 14, 2015
South Street Apartments
075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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SECTION 075323 -ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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.
1.2 SUMMARY
A.This Section includes the following:
1.Adhered membrane roofing system.
2.Roof insulation.
B.Related Sections include the following:
1.Division 06 Section " Miscellaneous Rough Carpentry" for wood nailers, curbs,
and blocking; and for wood-based, structural-use roof deck panels.
2.Division 07 Section "Sheet Metal Flashing and Trim" for metal roof penetration
flashings, flashings, and counterflashings.
3.Division 07 Section "Unit Skylights."
1.3 DEFINITIONS
A.Roofing Terminology: Refer to ASTM D 1079 and glossary of NRCA's "The NRCA
Roofing and Waterproofing Manual" for definition of terms related to roofing work in this
Section.
B.Design Uplift Pressure: The uplift pressure, calculated according to procedures in
SPRI's "Wind Load Design Guide for Fully Adhered and Mechanically Fastened
Roofing Systems," before multiplication by a safety factor.
C.Factored Design Uplift Pressure: The uplift pressure, calculated according to
procedures in SPRI's "Wind Load Design Guide for Fully Adhered and Mechanically
Fastened Roofing Systems," after multiplication by a safety factor.
1.4 PERFORMANCE REQUIREMENTS
A.General: Provide installed roofing membrane and base flashings that remain
watertight; do not permit the passage of water; and resist specified uplift pressures,
thermally induced movement, and exposure to weather without failure.
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075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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B.Material Compatibility: Provide roofing materials that are compatible with one another
under conditions of service and application required, as demonstrated by roofing
membrane manufacturer based on testing and field experience.
C.FMG Listing: Provide roofing membrane, base flashings,and component materials
that comply with requirements in FMG 4450 and FMG 4470 as part of a membrane
roofing system and that are listed in FMG's "Approval Guide" for Class 1 or
noncombustible construction, as applicable. Identify materials with FMG markings.
1.Fire/Windstorm Classification: Class 1A-90.
2.Hail Resistance: MH.
1.5 SUBMITTALS
A.Product Data: For each type of product indicated.
B.Shop Drawings: For roofing system. Include plans, elevations, sections, details, and
attachments to other Work.
1.Base flashings and membrane terminations.
2.Tapered insulation, including slopes.
3.Insulation fastening patterns.
C.Installer Certificates: Signed by roofing system manufacturer certifying that Installer is
approved, authorized, or licensed by manufacturer to install roofing system.
D.Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing
system complies with requirements specified in "Performance Requirements" Article.
1.Submit evidence of meeting performance requirements.
E.Maintenance Data: For roofing system to include in maintenance manuals.
F.Warranties: Special warranties specified in this Section.
G.Inspection Report: Copy of roofing system manufacturer's inspection report of
completed roofing installation.
1.6 QUALITY ASSURANCE
A.Installer Qualifications: A qualified firm that is approved, authorized, or licensed by
roofing system manufacturer to install manufacturer's product and that is eligible to
receive manufacturer's warranty.
B.Manufacturer Qualifications: A qualified manufacturer that has FMG approval for
membrane roofing system identical to that used for this Project.
C.Source Limitations: Obtain components for membrane roofing system from same
manufacturer as roofing membrane.
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075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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D.Fire-Test-Response Characteristics: Provide membrane roofing materials with the fire-
test-response characteristics indicated as determined by testing identical products per
test method below by UL, FMG, or another testing and inspecting agency acceptable to
authorities having jurisdiction. Materials shall be identified with appropriate markings of
applicable testing and inspecting agency.
1.Exterior Fire-Test Exposure: Class A; ASTM E 108, for application and roof
slopes indicated.
E.Preliminary Roofing Conference: Before starting roof replacement, conduct conference
at Project site.Review methods and procedures related to roof construction and
roofing system including, but not limited to, the following:
1.Review methods and procedures related to roofing installation, including
manufacturer's written instructions.
2.Review and finalize construction schedule and verify availability of materials,
Installer's personnel, equipment, and facilities needed to make progress and
avoid delays.
3.Examine deck substrate conditions and finishes for compliance with
requirements, including flatness and fastening.
4.Review base flashings, special roofing details, roof drainage, roof penetrations,
equipment curbs, and condition of other construction that will affect roofing
system.
5.Review governing regulations and requirements for insurance and certificates if
applicable.
6.Review temporary protection requirements for roofing system during and after
installation.
7.Review roof observation and repair procedures after roofing installation.
1.7 DELIVERY, STORAGE, AND HANDLING
A.Deliver roofing materials to Project site in original containers with seals unbroken and
labeled with manufacturer's name, product brand name and type, date of manufacture,
and directions for storing and mixing with other components.
B.Store liquid materials in their original undamaged containers in a clean, dry, protected
location and within the temperature range required by roofing system manufacturer.
Protect stored liquid material from direct sunlight.
1.Discard and legally dispose of liquid material that cannot be applied within its
stated shelf life.
C.Protect roof insulation materials from physical damage and from deterioration by
sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with
insulation manufacturer's written instructions for handling, storing, and protecting
during installation.
D.Handle and store roofing materials and place equipment in a manner to avoid
permanent deflection of deck.
Roofing Replacement May 14, 2015
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075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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1.8 PROJECT CONDITIONS
A.Weather Limitations: Proceed with installation only when existing and forecasted
weather conditions permit roofing system to be installed according to manufacturer's
written instructions and warranty requirements.
1.9 WARRANTY
A.Special Warranty: Manufacturer's standard form, without monetary limitation, in which
manufacturer agrees to repair or replace components of membrane roofing system that
fail in materials or workmanship within specified warranty period. Failure includes roof
leaks.
1.Special warranty includes roofing membrane, base flashings, roof insulation
fasteners and other components of membrane roofing system.
2.Warranty Period: 10 years from date of Substantial Completion.
PART 2 -PRODUCTS
2.1 MANUFACTURERS
A.In other Part 2 articles where subparagraph titles below introduce lists, the following
requirements apply for product selection:
1.Products: Subject to compliance with requirements, provide one of the products
specified.
2.Manufacturers: Subject to compliance with requirements, provide products by
the manufacturers specified.
2.2 EPDM ROOFING MEMBRANE
A.EPDM Roofing Membrane: ASTM D 4637, Type I, nonreinforced uniform, flexible
sheet made from EPDM, and as follows:
1.Manufacturers:
a.Carlisle SynTec Incorporated.
2.Thickness: 60 mils (1.5 mm), nominal.
3.Exposed Face Color: Black.
2.3 AUXILIARY MATERIALS
A.General: Auxiliary materials recommended by roofing system manufacturer for
intended use and compatible with membrane roofing.
1.Liquid-type auxiliary materials shall meet VOC limits of authorities having
jurisdiction.
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B.Sheet Flashing: 60-mil-(1.5-mm-)thick EPDM, partially cured or cured, according to
application.
C.Epichlorohydrin Sheet: 60-mil-(1.5-mm-)thick, unreinforced flexible sheet with the
following typical properties as determined per ASTM test method indicated:
1.Tensile Strength: 1500 psi (10.3 MPa); ASTM D 412.
2.Ultimate Elongation: 200 percent; ASTM D 412.
3.Tear Resistance: 150 lbf/in.(26.3 kN/m); ASTM D 412.
4.Brittleness Temperature: Minus 20 deg F (Minus 29 deg C); ASTM D 746.
5.Resistance to Ozone Aging: No cracks after 168 hours' exposure of 50 percent
elongated sample at 104 deg F (40 deg C)and 100-pphm (100-MPa)ozone;
ASTM D 1149.
6.Resistance to Oil Aging: 15 percent maximum mass change after 168 hours'
immersion in diesel fuel No.2 at 158 deg F (70 deg C); ASTM D 471.
D.Bonding Adhesive: Manufacturer's standard bonding adhesive.
E.Seaming Material: Manufacturer's standard synthetic-rubber polymer primer and 3-
inch-(75-mm-)wide minimum, butyl splice tape with release film.
F.Lap Sealant: Manufacturer's standard single-component sealant, color to match
roofing membrane.
G.Water Cutoff Mastic: Manufacturer's standard butyl mastic sealant.
H.Metal Termination Bars: Manufacturer's standard predrilled stainless-steel or
aluminum bars, approximately 1 by 1/8 inch (25 by 3 mm)thick; with anchors.
I.Miscellaneous Accessories: Provide pourable sealers, preformed cone and vent sheet
flashings, preformed inside and outside corner sheet flashings, T-joint covers, in-seam
sealants, termination reglets, cover strips, and other accessories.
2.4 ROOF INSULATION
A.General: Provide preformed roof insulation boards that comply with requirements and
referenced standards, selected from manufacturer's standard sizes and of thicknesses
indicated.
B.Polyisocyanurate Board Insulation: ASTM C 1289, Type II, felt or glass-fiber mat facer
on both major surfaces.
1.Manufacturers:
a.Hunter Panels, LLC.
C.Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4
inch per 12 inches (1:48)or 1/8 inch per 12 inches (1:96), as indicated.
D.Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes
where indicated for sloping to drain. Fabricate to slopes indicated.
Roofing Replacement May 14, 2015
South Street Apartments
075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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2.5 INSULATION ACCESSORIES
A.General: Furnish roof insulation accessories recommended by insulation manufacturer
for intended use and compatible with membrane roofing.
B.Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting
corrosion-resistance provisions in FMG 4470, designed for fastening roof insulation to
substrate, and acceptable to roofing system manufacturer.
PART 3 -EXECUTION
3.1 EXAMINATION
A.Examine substrates, areas, and conditions, with Installer present, for compliance with
the following requirements and other conditions affecting performance of roofing
system:
1.Verify that roof openings and penetrations are in place and set and braced and
that roof drains are securely clamped in place.
2.Verify that wood blocking, curbs, and nailers are securely anchored to roof deck
at penetrations and terminations and that nailers match thicknesses of insulation.
3.Proceed with installation only after unsatisfactory conditions have been
corrected.
3.2 PREPARATION
A.Clean substrate of dust, debris, moisture, and other substances detrimental to roofing
installation according to roofing system manufacturer's written instructions. Remove
sharp projections.
B.Prevent materials from entering and clogging roof drains and conductors and from
spilling or migrating onto surfaces of other construction. Remove roof-drain plugs
when no work is taking place or when rain is forecast.
C.Complete terminations and base flashings and provide temporary seals to prevent
water from entering completed sections of roofing system at the end of the workday or
when rain is forecast. Remove and discard temporary seals before beginning work on
adjoining roofing.
3.3 INSULATION INSTALLATION
A.Coordinate installing membrane roofing system components so insulation is not
exposed to precipitation or left exposed at the end of the workday.
B.Comply with membrane roofing system manufacturer's written instructions for installing
roof insulation.
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C.Install tapered insulation under area of roofing to conform to slopes indicated.
D.Install one or more layers of insulation under area of roofing to achieve required
thickness. Where overall insulation thickness is 2 inches (50 mm)or greater, install 2
or more layers with joints of each succeeding layer staggered from joints of previous
layer a minimum of 6 inches (150 mm)in each direction.
E.Trim surface of insulation where necessary at roof drains so completed surface is flush
and does not restrict flow of water.
F.Install insulation with long joints of insulation in a continuous straight line with end joints
staggered between rows, abutting edges and ends between boards. Fill gaps
exceeding 1/4 inch (6 mm)with insulation.
1.Cut and fit insulation within 1/4 inch (6 mm)of nailers, projections, and
penetrations.
G.Mechanically Fastened Insulation: Install each layer of insulation and secure to deck
using mechanical fasteners specifically designed and sized for fastening specified
board-type roof insulation to deck type.
1.Fasten insulation according to requirements in FMG's "Approval Guide" for
specified Windstorm Resistance Classification.
2.Fasten insulation to resist uplift pressure at corners, perimeter, and field of roof.
3.4 ADHERED ROOFING MEMBRANE INSTALLATION
A.Installroofing membrane over area to receive roofing according to membrane roofing
system manufacturer's written instructions. Unroll roofing membrane and allow to relax
before installing.
B.Start installation of roofing membrane in presence of membrane roofing system
manufacturer's technical personnel.
C.Accurately align roofing membrane and maintain uniform side and end laps of
minimum dimensions required by manufacturer. Stagger end laps.
D.Bonding Adhesive: Apply bonding adhesive to substrate and underside of roofing
membrane at rate required by manufacturer and allow to partially dry before installing
roofing membrane. Do not apply bonding adhesive to splice area of roofing
membrane.
E.Cold Fluid-Applied Adhesive: Apply cold fluid-applied adhesive to substrate at rate
required by manufacturer and install fleece-backed roofing membrane.
F.Mechanically or adhesively fasten roofing membrane securely at terminations,
penetrations, and perimeter of roofing.
G.Apply roofing membrane with side laps shingled with slope of roof deck where
possible.
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075323 ETHYLENE-PROPYLENE-DIENE-MONOMER (EPDM) ROOFING
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H.Adhesive Seam Installation: Clean both faces of splice areas, apply splicing cement,
and firmly roll side and end laps of overlapping roofing membranes according to
manufacturer's written instructions to ensure a watertight seam installation. Apply lap
sealant and seal exposed edges of roofing membrane terminations.
1.Apply a continuous bead of in-seam sealant before closing splice if required by
membrane roofing system manufacturer.
I.Tape Seam Installation: Clean and prime both faces of splice areas, apply splice tape,
and firmly roll side and end laps of overlapping roofing membranes according to
manufacturer's written instructions to ensure a watertight seam installation. Apply lap
sealant and seal exposed edges of roofing membrane terminations.
J.Repair tears, voids, and lapped seams in roofing that does not meet requirements.
K.Spread sealant or mastic bed over deck drain flange at deck drains and securely seal
roofing membrane in place with clamping ring.
L.Install roofing membrane and auxiliary materials to tie in to existing roofing.
3.5 BASE FLASHING INSTALLATION
A.Install sheet flashings and preformed flashing accessories and adhere to substrates
according to membrane roofing system manufacturer's written instructions.
B.Apply bonding adhesive to substrate and underside of sheet flashing at required rate
and allow to partially dry. Do not apply bonding adhesive to seam area of flashing.
C.Flash penetrations and field-formed inside and outside corners with cured or uncured
sheet flashing.
D.Clean splice areas, apply splicing cement, and firmly roll side and end laps of
overlapping sheets to ensure a watertight seam installation. Apply lap sealant and seal
exposed edges of sheet flashing terminations.
E.Terminate and seal top of sheet flashings and mechanically anchor to substrate
through termination bars.
3.6 FIELD QUALITY CONTROL
A.Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel
to inspect roofing installation on completion and submit report to Architect.
1.Notify Architect or Owner 48 hours in advance of date and time of inspection.
B.Repair or remove and replace components of membrane roofing system where test
results or inspections indicate that they do not comply with specified requirements.
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C.Additional testing and inspecting, at Contractor's expense, will be performed to
determine compliance of replaced or additional work with specified requirements.
3.7 PROTECTING AND CLEANING
A.Protect membrane roofing system from damage and wear during remainder of
construction period. When remaining construction will not affect or endanger roofing,
inspect roofing for deterioration and damage, describing its nature and extent in a
written report, with copies to Architect and Owner.
B.Correct deficiencies in or remove membrane roofing system that does not comply with
requirements, repair substrates and repair or reinstall membrane roofing system to a
condition free of damage and deterioration at time of Substantial Completion and
according to warranty requirements.
END OF SECTION 075323