SECTION 07 52 16

STYRENE-BUTADIENE-STYRENE (SBS) MODIFIED BITUMINOUS MEMBRANE ROOFING

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	SBS-modified bituminous membrane roofing system including the following:
1.	Cover board.
2.	Roof insulation.
3.	Vapor retarder.
4.	Base sheet.
5.	Sheathing paper.
6.	Substrate board.
1.2	RELATED SECTIONS
A.	Division 03 Section - Lightweight Insulating Concrete for lightweight insulating concrete.
B.	Division 03 Section - Concrete for concrete.
C.	Division 05 Section - Steel Decking for steel roof deck.
D.	Division 06 Section - Miscellaneous Rough Carpentry for wood nailers, cants, curbs, and blocking and for wood-based, structural-use roof deck panels.
E.	Division 07 Section - Sheet Metal Flashing and Trim for flashings and counter flashings.
F.	Division 22 Section - Storm Drainage Piping Specialties for roof drains.
1.3	REFERENCES
A.	American Society of Civil Engineers (ASCE): 
1.	ASCE-7 - Minimum Design Loads for Buildings & Other Structures.
B.	ASTM International (ASTM):
1.	ASTM C728 - Standard Specification or Perlite Thermal Insulation Board. 
2.	ASTM C1177 - Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing.
3.	ASTM C1278 - Standard Specification for Fiber-Reinforced Gypsum Panel.
4.	ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.
5.	ASTM D41 - Standard Specification for Asphalt Primer Used in Roofing, Damp proofing and Waterproofing.
6.	ASTM D312 - Standard Specification for Asphalt Used in Roofing.
7.	ASTM D2178 - Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing.
8.	ASTM D4397 - Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications. 
9.	ASTM D4601 - Standard Specification for Asphalt-Coated Glass Fiber Base Sheet Used in Roofing. 
10.	ASTM D4897 - Standard Specification for Asphalt-Coated Glass-Fiber Benting Base Sheet Used in Roofing. 
11.	ASTM D6163 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements. 
12.	ASTM D6164 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements. 
13.	ASTM E329 - Standard Specification for Agencies Engaged in Construction Inspection, Testing, or Special Inspection. 
C.	American National Standards Institute (ANSI) / Single Ply Roofing Industry (SPRI):
1.	ANSI/SPRI FX-1 - Standard Field Test Procedure for Determining the Withdrawal Resistance of Roofing Fasteners. 
2.	ANSI/ SPRI 1A-1 - Standard Field Test Procedure for Determining the Uplift Resistance of Insulation and Insulation Adhesives over Various Substrates. 
D.	FM Global:
1.	FMG Approval 4450 - Class 1 Insulated Steel Deck Roofs.
2.	FMG Approval 4470 - Single-Ply, Polymer-Modified Bitumen Sheet, Built-Up Roof (BUR) and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction. 
E.	Underwriters Laboratories (UL):
1.	UL 790 - Standard Test Methods for Fire Tests of Roof Coverings. 
F.	Underwriters Laboratory of Canada (CAN/ULC):
1.	CAN/ULC S770 - Standard Test Method for Determination of Long-Term Thermal Resistance of Closed-Cell Thermal Insulating Foams. 
G.	Glossary of NRCA's - The NRCA Roofing and Waterproofing Manual.
H.	Roof Consultants Institute - Glossary of Building Envelope Terms.
I.	International Building Code (IBC). 
J.	Sheet Metal Terminology and Techniques: SMACNA - Architectural Sheet Metal Manual.
K.	Hot Roofing Asphalt: Roofing asphalt heated to temperature recommended by roofing manufacturer to flux modified roofing membrane, measured at mop cart or mechanical spreader immediately before application.
1.4	SUBMITTALS
A.	Submit under provisions of Section 01 30 00.
B.	Product Data:
1.	Manufacturer's data sheets on each product to be used.
2.	Preparation instructions and recommendations.
3.	Storage and handling requirements and recommendations.
4.	Typical installation methods.
C.	Verification Samples: Two representative units of each type, size, pattern, and color.
D.	Shop Drawings: Include details of materials, construction, and finish. Include relationship with adjacent construction, attachments to other work, and the following:
1.	Base flashings and membrane terminations.
2.	Tapered insulation, including slopes.
3.	Crickets, saddles, and tapered edge strips, including slopes.
4.	Insulation fastening and adhesive patterns.
E.	Installer Qualifications: A qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturers product who is eligible to receive manufacturers special guarantee.
F.	Maintenance Data: Submit manufacturer's latest published documents.
G.	Guarantees: Submit manufacturer's current guarantee.
H.	Roofing sub-contractor will submit copy of the final System Assembly Letter issued by manufacturer, indicating that products and system installed are eligible to receive the specified manufacturer's guarantee when installed by a manufacturer certified contractor in accordance with manufacturer's application requirements, inspected and approved by manufacturer's Technical Representative.
I.	Prior to roofing system installation, roofing sub-contractor will provide a copy of the Guarantee Application Confirmation document issued by the manufacturer indicating project has been reviewed for eligibility to receive specified guarantee, and registered. 
1.5	QUALITY ASSURANCE
A.	Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of five years documented experience.
1.	Qualified domestic U.S. owned and based manufacturer that has UL listing, FMG approval, or accredited testing agency listing for roofing system identical to that used for this Project.
B.	Installer Qualifications: Qualified firm that is approved, authorized, or licensed by roofing system manufacturer to install manufacturer's product and who is eligible to receive the specified manufacturer's guarantee.
C.	Testing Agency Qualifications: An independent testing agency with the experience and capability to conduct testing indicated, as documented according to ASTM E329.
D.	Test Reports:
1.	Roof drain and leader test or submit plumber's verification.
2.	Core cut, if required.
3.	Roof deck fastener pullout test, if required.
E.	Moisture Survey, if Required:
1.	Submit prior to installation, results of a non-destructive moisture test of roof system completed by approved third party. Utilize one of the approved methods:
a.	Infrared Thermography.
b.	Nuclear Backscatter.
F.	Source Limitations: Obtain all components from the single source roofing manufacturer guaranteeing the roofing system. All products used in the system must be labeled by the single source roofing manufacturer issuing the guarantee.
G.	Provide evidence of CERTA training for any installer of torch-applied modified bitumen membrane. Copies of certifications are required prior to award and shall be maintained on the jobsite for inspection at any time.
1.6	PRE-INSTALLATION CONFERENCE
A.	Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items and approvals.
1.7	DELIVERY, STORAGE, AND HANDLING
A.	Deliver roofing materials in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, and directions for storage.
B.	Store and handle SBS roofing assembly components in strict compliance with manufacturer's written instructions and recommendations. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer.
C.	Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, weather, excessive temperature, construction operations and other sources. 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.
1.8	COORDINATION
A.	Coordinate work of this Section with existing warranties with building Owner's representative to verify compliance. 
B.	Coordinate installation of roof system components so insulation and cover board are not exposed to precipitation or left exposed at the end of the workday or when rain is imminent.
1.	Tie-off and cover exposed roofing membrane sheets and insulation at end of each day's work.
2.	Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system.
3.	Remove and discard temporary seals before beginning work on adjoining roofing.
1.9	PROJECT CONDITIONS
A.	Maintain environmental temperature, humidity, and ventilation conditions within limits recommended by manufacturer for optimum results Proceed with installation only when current and forecasted weather conditions permit roofing system to be installed in accordance with manufacturer's written instructions and guarantee requirements.
1.10	GUARANTEE
A.	Provide manufacturer's system guarantee equal to Johns Manville's Peak Advantage No Dollar Limit Roofing System Guarantee.
1.	Single-source special guarantee includes roofing membrane, base flashings, roofing membrane accessories, roof insulation, fasteners, adhesives, cover board, substrate board, vapor retarder, base sheet, walkway products, manufacturer's expansion joints, manufacturer's edge metal products, and other approved single-source components of roofing system marketed by the manufacturer.
2.	Guarantee Period: 
a.	10 years from date of Substantial Completion.
b.	15 years from date of Substantial Completion.
c.	20 years from date of Substantial Completion. 
d.	25 years from date of Substantial Completion.
e.	30 years from date of Substantial Completion.
3.	Specifier Account: Contractor is required to list INSERT FIRM NAME as the Specifier/Consultant of record in the appropriate fields when applying for the manufacturer's guarantee.
B.	Installer's Guarantee: Submit roofing Installer's guarantee, including all components of roofing system for the following guarantee period:
1.	Guarantee Period: 
a.	Two years from date of Substantial Completion. 
b.	Five years from date of Substantial Completion.
C.	Existing Guarantees: Guarantees on existing building elements should not be affected by scope of work.
1.	Installer is responsible for coordinating with building owner's representative to verify compliance.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: Johns Manville which is located at: 717 17th St. P.O. Box 5108; Denver, CO 80217-5108; ASD Toll Free Tel: 800-654-3103; Tel: 303-978-2499; Web: www.jm.com.
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with the provisions of Section 01 60 00.
2.2	PERFORMANCE AND DESIGN REQUIREMENTS
A.	General: Installed roofing membrane system will remain watertight; and resist specified wind uplift pressures, thermally induced movement, and exposure to weather without failure.
B.	Material Compatibility: Roofing materials must be compatible with one another under conditions of service and application required, as demonstrated by roofing system manufacturer based on testing and field experience.
C.	Installer must comply with current code requirements based on authorities having jurisdiction.
D.	Wind Uplift Performance: Roofing system will meet the intent of systems that have been successfully tested by a qualified testing and inspecting agency to resist wind uplift pressure calculated in accordance with ASCE-7.
E.	FMG Listing: Roofing membrane, base flashings, and component materials must comply with requirements in FMG 4450 and FMG 4470 as part of a roofing system and that are listed in FMG's RoofNav for Class 1 or noncombustible construction, as applicable. Identify materials with FMG markings.
1.	Roofing system will comply with RoofNav No. __________.
2.	Fire/Windstorm Classification: Class 1.
3.	Fire/Windstorm Classification: Class NC.
4.	Fire/Windstorm Classification: Class A-________.
F.	Hail Resistance: 
1.	MH. 
2.	SH.
3.	VSH.
G.	Fire-Test-Response Characteristics: Roofing materials with 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 must be identified with appropriate markings of applicable testing and inspecting agency.
1.	Exterior Fire-Test Exposure: Class A; UL 790, for application and roof slopes indicated.
2.	Exterior Fire-Test Exposure: Class B; UL 790, for application and roof slopes indicated.
3.	Exterior Fire-Test Exposure: Class C; UL 790, for application and roof slopes indicated.
2.3	BASE PLY AND CAP SHEET MATERIALS
A.	Roofing Membrane Sheet: SBS -modified asphalt sheet; smooth surfaced; suitable for application method specified.
1.	Roofing Membrane Sheet: ASTM D6164, Grade S, Type I, polyester-reinforced SBS-modified asphalt base or ply sheet; smooth surfaced; suitable for application method specified. 
a.	Basis of Design: DynaLastic 180 S.
b.	Basis of Design: DynaBase PR.
c.	Basis of Design: DynaWeld 180 S.
d.	Basis of Design: DynaGrip Base PR SD/SA.
e.	Basis of Design: DynaGrip Base PR SA/SA.
f.	Basis of Design: DynaGrip Base PR P/SA.
2.	Roofing Membrane Sheet: ASTM D6164, Grade S, Type II, polyester-reinforced SBS-modified asphalt base or ply sheet; smooth surfaced; suitable for application method specified. 
a.	Basis of Design: DynaLastic 250 S. 
b.	Basis of Design: DynaWeld 250 S.
3.	Roofing Membrane Sheet: ASTM D6163, Grade S, Type I, glass-fiber-reinforced, SBS-modified asphalt base, or ply sheet; smooth surfaced; suitable for application method specified. 
a.	Basis of Design: DynaBase.
b.	Basis of Design: DynaBase HW.
c.	Basis of Design: DynaWeld Base.
d.	Basis of Design: JM CleanBond Utility Sheet.
4.	Roofing Membrane Sheet: ASTM D6163, Grade S, Type II, glass-fiber-reinforced, SBS-modified asphalt base, or ply sheet; smooth surfaced; suitable for application method specified.
a.	Basis of Design: DynaBase XT.
b.	Basis of Design: DynaWeld Base XT.
5.	Roofing Membrane Sheet: ASTM D6162, Grade S,Type I, composite polyester and glass-fiber-reinforced, SBS-modified base or ply asphalt sheet; smooth surfaced; suitable for application method specified.
a.	Basis of Design: DynaPly T1.
b.	Basis of Design: DynaPly T1 HW.
6.	Roofing Membrane Sheet: ASTM D6162, Grade S,Type III, fire resistant, composite polyester- and glass-fiber-reinforced, SBS-modified asphalt sheet; smooth surfaced; suitable for application method specified.
a.	Basis of Design: DynaMax Smooth.
b.	Basis of Design: Dynamax FR Smooth. 
c.	Basis of Design: DynaMax FR Smooth HW. 
d.	Basis of Design: DynaMax FR Plus Smooth.
7.	Basis of Design: DynaGrip Base P/SA: Roofing Membrane Sheet: ASTM D4601, polyolefin top, self-adhering bottom, glass-fiber reinforced, SBS-modified asphalt sheet; smooth surfaced; suitable for application method specified. 
8.	Basis of Design: DynaGrip Base SA/SA: Roofing Membrane Sheet: ASTM D4601, self-adhering both sides. glass-fiber reinforced, SBS-modified asphalt sheet; smooth surfaced; suitable for application method specified. 
9.	Basis of Design: DynaGrip Base SD/SA: Roofing Membrane Sheet: ASTM D4601, self-adhering, glass-fiber reinforced, SBS-modified asphalt base sheet; sand top surfaced; suitable for application method specified. 
10.	Basis of Design: JM BaseGrip SD/SA: Roofing Membrane Sheet: ASTM D4601, ASTM D 1970, Type II, self-adhering, glass-fiber reinforced, SBS-modified asphalt base sheet; sand top surfaced; suitable for application method specified. 
11.	Basis of Design: JM CleanBond Base: Roofing Membrane Sheet: ASTM D4601, glass-fiber reinforced, fire retardant SBS-modified asphalt base sheet; self-adhesive surfaced, both sides; suitable for application method specified. 
B.	Roofing Membrane Cap Sheet: SBS-modified asphalt sheet; granular surfaced; suitable for application method specified.
1.	Roofing Membrane Cap Sheet: ASTM D6164, Grade G, Type I, polyester-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaLastic 180.
b.	Basis of Design: DynaLastic 180 FR.
c.	Basis of Design: DynaLastic 180 FR CR G.
d.	Basis of Design: DynaWeld Cap 180.
e.	Basis of Design: DynaWeld Cap 180 FR.
f.	Basis of Design: DynaWeld Cap 180 FR CR G.
2.	Roofing Membrane Cap Sheet: ASTM D6164, Grade G, Type II, polyester-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaLastic 250.
b.	Basis of Design: DynaLastic 250 FR.
c.	Basis of Design: DynaLastic 250 FR CR G.
d.	Basis of Design: DynaWeld Cap 250.
e.	Basis of Design: DynaWeld Cap 250 FR.
f.	Basis of Design: DynaWeld Cap 250 FR CR G.
3.	Roofing Membrane Cap Sheet: ASTM D6163, Grade G, Type I, glass-fiber-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaGlas.
b.	Basis of Design: DynaGlas 30 FR.
c.	Basis of Design: DynaGlas FR.
d.	Basis of Design: DynaGlas FR CR G.
e.	Basis of Design: DynaWeld Cap. 
f.	Basis of Design: DynaWeld Cap FR.
g.	Basis of Design: DynaWeld Cap FR CR G.
h.	Basis of Design: JM CleanBond Cap.
4.	Roofing Membrane Cap Sheet: ASTM D6163, Grade G, Type II, glass-fiber-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaGlas FR XT.
b.	Basis of Design: DynaGlas FR XT CR G.
c.	Basis of Design: DynaWeld Cap FR XT.
d.	Basis of Design: DynaWeld Cap FR XT CR G.
5.	Roofing Membrane Cap Sheet: ASTM D6162, Grade G, Type I, composite polyester- and glass-fiber-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaKap T1.
b.	Basis of Design: DynaKap FR T1.
c.	Basis of Design: DynaKap FR T1 CR G.
d.	Basis of Design: DynaKap FR T1 HW.
e.	Basis of Design: DynaKap FR T1 HW CR G.
6.	Roofing Membrane Cap Sheet: ASTM D6162, Grade G, Type III, composite polyester- and glass-fiber-reinforced mineral surfaced cap sheet; suitable for application method specified.
a.	Basis of Design: DynaMax FR.
b.	Basis of Design: DynaMax FR CR G.
c.	Basis of Design: DynaMax FR HW.
d.	Basis of Design: DynaMax FR HW CR G.
e.	Basis of Design: DynaMax FR Plus.
C.	Basis of Design: DynaGrip Cap: Self-adhering, glass-fiber reinforced, ceramic coated roofing granules; suitable for application method specified.
D.	Basis of Design: DynaGrip Cap PR: Self-adhering, glass-scrim reinforced polyester, ceramic coated roofing granules; suitable for application method specified.
2.4	FLASHING SHEET MATERIALS
A.	Backer Sheet: ASTM D 4601, Type II, asphalt-impregnated and coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides. Basis of Design: PermaPly 28.
B.	Backer Sheet: SBS-modified asphalt sheet; smooth surfaced; suitable for application method specified. 
1.	ASTM D6164, Grade S, Type I, polyester-reinforced SBS-modified asphalt sheet; smooth surfaced.
a.	Basis of Design: DynaLastic 180 S.
b.	Basis of Design: DynaBase PR.
c.	Basis of Design: DynaWeld 180 S.
d.	Basis of Design: DynaGrip Base PR SA/SA.
e.	Basis of Design: DynaGrip Base PR P/SA.
f.	Basis of Design: DynaGrip Base PR SD/SA.
2.	ASTM D6163, Grade S, Type I, glass-fiber-reinforced, SBS-modified asphalt base, or ply sheet; smooth surfaced.
a.	Basis of Design: DynaBase.
b.	Basis of Design: DynaBase HW.
c.	Basis of Design: JM CleanBond Utility Sheet.
d.	Basis of Design: DynaWeld Base.
3.	ASTM D 6162, Grade S, Type III, composite polyester and glass-fiber-reinforced, SBS-modified base or ply asphalt sheet; smooth surfaced.
a.	Basis of Design: DynaPly T1.
4.	ASTM D 4601, polyolefin top, self-adhering bottom, glass-fiber reinforced, SBS-modified asphalt sheet; smooth surfaced.
a.	Basis of Design: DynaGrip Base P/SA.
b.	Basis of Design: DynaGriip Base SA/SA.
c.	Basis of Design: DynaGrip Base SD/SA.
5.	ASTM D4601, ASTM D 1970, Type II, self-adhering, glass-fiber reinforced, SBS-modified asphalt base sheet; sand top surfaced.
a.	Basis of Design: JM BaseGrip SD/SA.
C.	Basis of Design: JM CleanBond Polyester Base Flashing: Polyester-Reinforced.
D.	Flashing Sheet: SBS-modified asphalt sheet; granular surfaced; suitable for application method specified.
1.	ASTM D 6164, Grade G, Type I, polyester-reinforced, mineral surfaced cap sheet, fire retardant. 
a.	Basis of Design: DynaLastic 180 FR.
b.	Basis of Design: DynaLastic 180 FR CR G.
c.	Basis of Design: DynaWeld Cap 180.
d.	Basis of Design: DynaWeld Cap 180 FR.
e.	Basis of Design: DynaWeld Cap 180 FR CR G.
2.	ASTM D 6164, Grade G, Type II, polyester-reinforced, fire retardant, reflective mineral surfaced cap sheet.
a.	Basis of Design: DynaLastic 250 FR.
b.	Basis of Design: DynaLastic 250 FR CR G.
c.	Basis of Design: DynaWeld Cap 250.
d.	Basis of Design: DynaWeld Cap 250 FR.
e.	Basis of Design: DynaWeld Cap 250 FR CR G.
3.	ASTM D 6163, Grade G, Type I, glass-fiber-reinforced, ceramic coated roofing granule surfaced, fire retardant; suitable for application method specified.
a.	Basis of Design: DynaWeld Cap FR.
b.	Basis of Design: DynaWeld FR CR G.
4.	ASTM D 6162, Grade G, Type I, composite polyester- and glass-fiber-reinforced, fire resistant; suitable for application method specified. 
a.	Basis of Design: DynaKap T1
b.	Basis of Design: DynaKap FR T1
5.	ASTM D 6221, Grade G, Type I, composite polyester- and glass-fiber-reinforced; suitable for application method specified. 
a.	Basis of Design: DynaFlex.
b.	Basis of Design: DynaFlex CR G.
6.	ASTM D 6298, embossed aluminum foil surfaced, glass-fiber-reinforced; suitable for application method specified.
a.	Basis of Design: DynaClad.
b.	Basis of Design: DynaClad Copper.
7.	Basis of Design: J M CleanBond Polyster Cap Finish: ASTM D 4601.
E.	Basis of Design: DynaGrip Cap: Self-adhering, glass-fiber reinforced, ceramic coated roofing granules; suitable for application method specified. 
F.	Basis of Design: DynaGrip Cap PR: Self-adhering, glass-scrim reinforced polyester, ceramic coated roofing granules; suitable for application method specified. 
G.	Liquid Applied Flashing: Liquid and fabric reinforced flashing system with stitch bonded polyester scrim and two-component, moisture cured, elastomeric, liquid applied flashing material, consisting of asphalt extended urethane base material and activator. Basis of Design: PermaFlash System
H.	High Wall Sheet Flashing Membrane: 
1.	Basis of Design: JM PVC: 60 mils. Internally reinforced. Scrim reinforced.
2.	Basis of Design: JM TPO: 60 mils. Internally reinforced. Scrim reinforced.
3.	Basis of Design: JM EPDM: 60 mils. Non-reinforced. Internally reinforced. scrim reinforced.
4.	Adhesive Basis of Design: JM Membrane Bonding Adhesive (TPO and EPDM).
5.	Adhesive Basis of Design: Basis of Design: JM PVC Membrane Adhesive Low VOC.
6.	Adhesive Basis of Design: Basis of Design: All Season Sprayable Bonding Adhesive (TPO and EPDM).
2.5	AUXILARY ROOFING MATERIALS
A.	General: Auxiliary materials recommended by roofing system manufacturer for intended use, compatible with built-up roofing.
B.	Roofing Asphalt: ASTM D312, Type IV.
C.	Basis of Design: JM Asphalt Primer: ASTM D41. 
D.	Asphalt Roofing Cement: ASTM D 4586, type I, asbestos free, of consistency required by roofing system manufacturer for application. Basis of Design: MBR Utility Cement.
E.	Mastic Sealant: As required by manufacturer.
F.	Basis of Design: MBR Cold Application Adhesive: Cold-Applied Adhesive: ASTM D 3019, Type III, Grade 2. asphalt-based, asbestos-free, cold-applied adhesive compatible with membrane applications. 
G.	Basis of Design: MBR Bonding Adhesive: Cold-Applied Adhesive: Roofing system manufacturer's asphalt-based, two-component, asbestos-free, cold-applied adhesive compatible with membrane applications. 
H.	Basis of Design: MBR Utility Cement: Asphalt Roofing Cement: ASTM D 4586, Type I, asbestos free, of consistency required by roofing system manufacturer for application.
I.	Basis of Design: DynaSet 1k: One-part, solvent-free, moisture-curing, elastomeric cold-application adhesive compatible for use with SBS membrane applications.
J.	Basis of Design: Premium Cold Application Adhesive: Cold-Applied Adhesive: One-part, elastomeric cold-application adhesive compatible with membrane applications. 
K.	Basis of Design: MBR Flashing Cement: Cold-Applied Flashing Adhesive: Roofing system manufacturer's asphalt-based, two-part, elastomeric, liquid-applied, cold-applied adhesive compatible with flashing applications. 
L.	Factory-coated steel fasteners and metal plates meeting corrosion-resistance provisions in FMG 4470, designed for fastening membrane to substrate, and acceptable to membrane roofing system manufacturer. 
1.	Basis of Design: High Load Fasteners and Plates.
2.	Basis of Design: All Purpose Fasteners and Plates.
3.	Basis of Design: UltraFast Fasteners and Plates. 
M.	Basis of Design: JM Termination Systems: Metal Termination Bars: Manufacturer's standard predrilled bars with anchors. 
1.	Stainless-steel.
2.	Aluminum.
N.	Roofing Granules: Ceramic-coated roofing granules matching specified cap sheet, provided by roofing system manufacturer. 
1.	Basis of Design: Roofing Granules.
2.	Basis of Design: CR Roofing Granules.
O.	Self-Adhered Primer: One-part penetrating primer solution for adhesion of self-adhering membranes. 
1.	Basis of Design: SA Primer. 
2.	Basis of Design: SA Primer Low VOC.
P.	Miscellaneous Accessories: Miscellaneous accessories recommended by roofing system manufacturer.
2.6	REFLECTIVE COATING
A.	Elastomeric Coating: ASTM D 6083. Multipurpose, acrylic elastomeric coating for various substrates.
1.	Basis of Design: TopGard 4000.
2.	Basis of Design: TopGard 5000.
3.	Basis of Design: JM Coating Acrylic.
B.	Basis of Design: JM Coating Universal Base: Elastomeric Base Coating: Water borne epoxy formulated base coat with bleed-blocking properties for asphalt surfaces. 
C.	Basis of Design: TopGard Base Coat: One-part acrylic elastomeric with bleed-blocking properties for asphalt surfaces. 
2.7	WALKWAYS
A.	Basis of Design: DynaTred Walkway: Pads: Mineral-granule-surfaced, reinforced modified asphalt composition, slip-resisting pads, manufactured as traffic pads for foot traffic provided by roofing system manufacturer. 
1.	Pad Size: 32 x 32 inches (813 x 813 mm). 
2.8	COVER BOARD
A.	Perlite Board: ASTM C728, Type 3; expanded perlite, cellulosic fibers, binders, and waterproofing agents with top surface seal coated. 
1.	Basis of Design: RetroPlus Roof Board: 
B.	Perlite Board: ASTM C728, Type 1; expanded perlite, cellulosic fibers, binders, and waterproofing agents with top surface seal coated. 
1.	Basis of Design: 1/2 inch Retro-Fit Board.
2.	Basis of Design: 3/4 inch Fesco Board.
3.	Basis of Design: 1 inch Fesco Board.
C.	Perlite Board: ASTM C728, Type 2; expanded perlite, cellulosic fibers, binders, and waterproofing agents with top surface seal coated. 
1.	Basis of Design: 1/2 inch DuraBoard.
2.	Basis of Design: 3/4 inch DuraBoard.
3.	Basis of Design: 1 inch DuraBoard.
D.	Basis of Design: ProtectoR HD: High-Density Polyisocyanurate: ASTM C1289, Type II, Class 4, Grade 1, High-density Polyisocyanurate bonded in-line to inorganic coated glass facers with greater than 80 lbs of compressive strength. 
1.	Thickness: 1/2 inch (13 mm).
2.	R-value: 2.5.
E.	Cement Roof Board: ASTM C 1325, lightweight cementitious core with fiberglass mesh surfacing and reinforced edges.
1.	Basis of Design: DEXcell Cement Roof Board. 
2.	Basis of Design: Securock Cement Roof Board.
3.	Thickness: 7/16 inch (11 mm).
F.	Gypsum Board: ASTM C1177, Heavy duty coated glass-mat facer, water-resistant gypsum substrate for adhered roof applications. 
1.	Basis of Design: DEXcell FA Glass Mat Roof Board.
2.	Basis of Design: Dens Deck Prime Roof Board.
3.	Thickness: 1/4 inch (6 mm).
4.	Thickness: 1/2 inch (13 mm).
5.	Thickness: 5/8 inch (16 mm).
G.	Gypsum Fiber Board: ASTM C1278, non-faced, gypsum and cellulose fiber substrate.
1.	Basis of Design: Securock Gypsum-Fiber Roof Board.
2.	Thickness: 1/4 inch (6 mm).
3.	Thickness: 3/8 inch (9.5 mm).
4.	Thickness: 1/2 inch (13 mm). 
5.	Thickness: 5/8 inch (16 mm).
2.9	ROOF INSULATION
A.	General: Preformed roof insulation boards complying with requirements and referenced standards, selected from manufacturer's standard sizes and of thicknesses indicated.
B.	Polyisocyanurate Board Insulation: ASTM C1289, Type II.
1.	Basis of Design: ENRGY 3.
a.	Class 2. Grade 2 (20 psi).
2.	Basis of Design: ENRGY 3 25 PSI.
a.	Class 2. Grade 3 (25 psi).
3.	Basis of Design: ENRGY 3 CGF.
a.	Class 2. Grade 2 (20 psi).
4.	Basis of Design: ENRGY 3 25 PSI CGF.
a.	Class 2. Grade 3 (25 psi).
C.	Insulation package minimum R Value:
1.	R Value: ________. 
2.	R Value: Minimum R-value required by applicable code. 
3.	Insulation Package: ________ minimum thickness.
4.	Insulation Package: Multiple layers. 
5.	Long-Term Thermal Resistance (LTTR): 5.7 per inch minimum.
a.	Determined according to CAN/ULC S770 at 75 degrees F (24 degrees C).
2.10	TAPERED INSULATION
A.	Tapered Insulation: ASTM C1289, Type II. Factory-tapered insulation boards fabricated to slope of 1/4 inch (6.35 mm) per 12 inches (304.8 mm) (1:48 slope), unless otherwise indicated. 
1.	Basis of Design: Tapered ENRGY 3.
a.	Class 1. Grade 2 (20 psi).
2.	Basis of Design: Tapered ENRGY 3 25 PSI. 
a.	Class 1. Grade 3 (25 psi). 
3.	Basis of Design: Tapered ENRGY 3 CGF. 
a.	Class 2. Grade 2 (20 psi).
4.	Basis of Design: Tapered ENRGY 3 25 PSI CGF.
a.	Class 2. Grade 3 (25 psi).
2.11	INSULATION ACCESSORIES
A.	General: Roof insulation accessories recommended by insulation manufacturer for intended use, compatible with membrane roofing.
B.	Basis of Design: Tapered Fesco Edge Strip: Saddles, crickets, tapered edge strips, and other insulations shapes indicated for sloping to drain. Fabricate to slopes indicated. 
C.	Basis of Design: UltraFast Fasteners and UltraFast Plates: Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting FMG 4470 corrosion-resistance requirements designed for fastening roof insulation to substrate, furnished by roofing system manufacturer. 
D.	Basis of Design: All Purpose Fasteners and UltraFast Plates: Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting FMG 4470 corrosion-resistance requirements, designed for fastening roof insulation to substrate, furnished by roofing system manufacturer. 
E.	Basis of Design: Lite-Deck Fasteners and Plates: Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting FMG 4470 corrosion-resistance requirements, designed for fastening roof insulation to substrate, furnished by roofing system manufacturer. 
F.	Basis of Design: Polymer Auger Fasteners and Plates: Polymer Fasteners: Glass-reinforced nylon fasteners with 1/4 inch (6.35 mm) square drive and 1 inch (25.4 mm) head with Galvalume-coated 3 inch (76.2 mm) metal stress plates, designed to lock into the fastener head. Fasteners designed for fastening roof insulation to substrate, furnished by roofing system manufacturer. 
G.	Basis of Design: JM Two-Part Urethane Insulation Adhesive (UIA): Urethane Adhesive: Manufacturer's two component polyurethane adhesive to adhere insulation to substrate.
H.	Basis of Design: JM One-Step Foamable Adhesive: Urethane Adhesive: Manufacturer's two component polyurethane adhesive to adhere insulation to substrate. 
I.	Basis of Design: Roofing Systems Urethane Adhesive (RSUA): Urethane Adhesive: Manufacturer's two component polyurethane adhesive to adhere insulation to substrate.
J.	Basis of Design: JM Two-Part Urethane Insulation Adhesive Canister: Urethane Adhesive: Manufacturer's two component polyurethane adhesive to adhere insulation to substrate.
K.	Basis of Design: FesCant Plus: Insulation Cant Strips: ASTM C728, perlite insulation board. 
L.	Wood Nailer Strips: Comply with requirements in Division 06 Section - Miscellaneous Rough Carpentry.
2.12	VAPOR RETARDER
A.	Basis of Design: GlasPly IV: Glass-Fiber Felts: ASTM D2178, Type IV, asphalt-impregnated, glass-fiber felt. 
B.	SBS Modified Base Sheet: ASTM D6164, Grade S, Type I, polyester-reinforced SBS-modified asphalt base or ply sheet; smooth surfaced; suitable for application method specified. 
1.	Basis of Design: DynaLastic 180 S.
2.	Basis of Design: DynaBase PR.
3.	Basis of Design: DynaWeld 180 S
4.	Basis of Design: DynaGrip Base PR SD/SA
C.	SBS Modified Base Sheet: ASTM D6164, Grade S, Type II, polyester-reinforced SBS-modified asphalt base or ply sheet; smooth surfaced; suitable for application method specified. 
1.	Basis of Design: DynaLastic 250 S. 
2.	Basis of Design: DynaWeld 250 S.
D.	Base: ASTM D6163, Grade S, Type I, glass-fiber-reinforced, SBS-modified asphalt base, or ply sheet; smooth surfaced; suitable for application method specified. 
1.	Basis of Design: DynaBase.
2.	Basis of Design: DynaWeld Base.
3.	Basis of Design: DynaBase HW: 
E.	Basis of Design: DynaGrip Base SD/SA: Self-Adhered SBS Vapor Retarder: ASTM D4601, SBS-modified asphalt sheet; sand surfaced; suitable for application method specified.
F.	Polyethylene Vapor Retarder: ASTM D4397. 
1.	Thickness: 6 mils (0.15 mm), minimum. Maximum Permeance Rating: 0.13 perms (7.5 ng/Pa x s x sq. m).
2.	Thickness: 10 mils (0.25 mm), minimum. Maximum Permeance Rating: 0.13 perm (7.5 ng/Pa x s x sq. m).
G.	Self-Adhered SBS Vapor Retarder: Tri-laminate woven polyethylene, nonslip UV protected top surface; suitable for application method specified.
1.	Basis of Design: JM Vapor Barrier SA: 
2.	Basis of Design: JM Vapor Barrier SAR: 
H.	Basis of Design: JM Asphalt Primer: Asphalt Primer: ASTM D41.
I.	Basis of Design: SA Primer: Self-Adhered Primer: One-part, sprayable, penetrating primer for self-adhering membranes.
J.	Basis of Design: SA Primer Low VOC: Self-Adhered Primer: One-part, low VOC, sprayable, penetrating primer for self-adhering membranes.
K.	Basis of Design: JM All Season Sprayable Bonding Adhesive: Self-Adhered Primer: Low VOC, aerosol, penetrating primer for self-adhering membranes.
2.13	BASE-SHEET MATERIALS
A.	Base Sheet: ASTM D4601, Type II, non-perforated, asphalt-impregnated and coated, glass-fiber sheet, dusted with fine mineral surfacing on both sides. 
1.	Basis of Design: PermaPly 28.
2.	Basis of Design: GlasBase Plus. 
B.	Basis of Design: Ventsulation Felt: Base Sheet: ASTM D4897, Type II, venting, non-perforated, heavyweight, asphalt-impregnated and coated, glass-fiber base sheet. 
1.	Coarse granular surfacing on bottom surface.
2.	Embossed venting channels on bottom surface.
C.	Basis of Design: DynaLastic 180 S: SBS Modified Base Sheet: ASTM D6164, Grade S, Type I, polyester-reinforced SBS-modified asphalt base or ply sheet; smooth surfaced; suitable for application method specified. 
D.	Basis of Design: DynaFast 180 HW: SBS Modified Base Sheet: ASTM D6164, Grade S, Type I, composite polyester, and glass-scrim reinforced, SBS-modified asphalt sheet; smooth surfaced, heat weldable; suitable for mechanically fastened applications. 
E.	Basis of Design: DynaFast 180 S: SBS Modified Base Sheet: ASTM D6164, Grade S, Type I, composite polyester, and glass-scrim reinforced, SBS-modified asphalt sheet; fine mineral parting agent surfaced; suitable for mechanically fastened applications. 
F.	Basis of Design: DynaFast 250 HW: SBS Modified Base Sheet: ASTM D6164, Grade S, Type II, polyester-reinforced, SBS-modified asphalt sheet; smooth surfaced, heat weldable; suitable for application method specified. 
G.	Basis of Design: Lightweight Concrete (LWC) Base Sheet Fasteners: Twin legged factory-coated steel fasteners and Galvalume metal plates meeting FMG 4470 corrosion-resistance requirements, designed for fastening base-sheet to substrate. Tested by manufacturer for required pullout strength and provided by roofing system manufacturer. 
H.	Basis of Design: UltraLok Locking Impact Fastener: Base-Sheet Fasteners: Tube, disk and locking staple design, factory-coated steel fasteners and Galvalume metal battens meeting FMG 4470 corrosion-resistance requirements, designed for fastening base-sheet to substrate. Tested by manufacturer for required pullout strength and provided by roofing system manufacturer. 
I.	Base Sheet Fasteners: Factory-coated steel fasteners and metal or plastic plates meeting corrosion-resistance provisions in FMG 4470, designed for fastening roofing membrane components to substrate, tested by manufacturer for required pullout strength, and provided by the roofing system manufacturer. 
1.	Basis of Design: High Load Fasteners and High Load Plates. 
2.	Basis of Design: All Purpose Fasteners and High Load Plates.
J.	Base Sheet Fasteners: 32 gauge (0.246 mm), 1-5/8 inch (41.3 mm) diameter tin caps with 11-gauge (1.4 mm) annular ring shank nails.
2.14	SUBSTRATE BOARD
A.	Gypsum Board: ASTM C1177, coated glass-mat facer, water-resistant gypsum substrate for mechanically attached roof applications. 
1.	Basis of Design: Securock Ultralight Glass-Mat Roof Board.
2.	Basis of Design: DEXcell Glass Mat Roof Board.
3.	Basis of Design: Dens Deck Roof Board.
4.	Thickness: 1/4 inch (6 mm).
5.	Thickness: 1/2 inch (13 mm).
6.	Thickness: 5/8 inch (16 mm).
B.	Glass Mat Roof Board Gypsum Board: ASTM C1177, Heavy duty coated glass-mat facer, water-resistant gypsum substrate for adhered roof applications. 
1.	Basis of Design: DEXcell FA Glass Mat Roof Board.
2.	Basis of Design: Dens Deck Prime Roof Board.
3.	Thickness: 1/4 inch (6 mm).
4.	Thickness: 1/2 inch (13 mm).
5.	Thickness: 5/8 inch (16 mm).
C.	Basis of Design: Securock Gypsum-Fiber Roof Board: Gypsum Fiber Board: ASTM C1278, non-faced, gypsum and cellulose fiber substrate. 
1.	Thickness: 1/4 inch (6 mm).
2.	Thickness: 3/8 inch (9.5 mm). 
3.	Thickness: 1/2 inch (13 mm).
4.	Thickness: 5/8 inch (16 mm).
D.	Basis of Design: ProtectoR HD: High-Density Polyisocyanurate: ASTM C1289, Type II, Class 4, Grade 1, High-density Polyisocyanurate bonded in-line to inorganic coated glass facers with greater than 80 lbs of compressive strength. 
1.	Thickness: 1/2 inch (13 mm).
2.	R-value: 2.5.
2.15	SHEATHING PAPER
A.	Sheathing Paper: Red-rosin type, minimum 3 lbs per 100 sq ft (0.16 kg per sq m).
2.16	EDGE MATERIAL COMPONENTS
A.	Basis of Design: Expand-O-Flash: Expansion Joints: Provide factory fabricated weatherproof, exterior covers for expansion joint openings consisting of flexible rubber membrane, supported by a closed cell foam to form flexible bellows, with two metal flanges, adhesively and mechanically combined to the bellows by a bifurcation process. Product must be from single-source roofing system supplier included in the No Dollar Limit guarantee. 
B.	Basis of Design: Expand-O-Gard: Expansion Joints: Provide factory fabricated weatherproof, exterior covers for expansion joint openings consisting of flexible rubber membrane, supported by a closed cell foam to form flexible bellows, with two metal flanges, adhesively and mechanically combined to the bellows by a bifurcation process. Product must be from single-source roofing system supplier included in the No Dollar Limit guarantee. 
C.	Coping System: Manufacturer's factory fabricated coping consisting of a base piece and a snap-on cap. Product must be from single-source roofing system supplier included in the No Dollar Limit guarantee. 
1.	Basis of Design: Presto-Lock Coping.
2.	Basis of Design: Presto-Lock Gold Coping.
D.	Shop-Fabricated Edge Metal: Custom-fabricated edge metal to meet criterion of ANSI/SPRI ES-1. Must be approved by manufacturer technical representative. 
1.	Minimum Requirements: Steel: 24 gauge minimum, fastened 6 inches on center.
2.	Minimum Requirements: Aluminum: 0.05 inch thick, fastened 6 inches on center.
E.	Roof Edge Drainage Systems: Gutter Systems: Manufactured in section lengths not exceeding 12 feet with 0.100 inch mill aluminum internal Gutter Hangers, 24 inches on center, and 2 inch wide formed external wind straps 6 ft on center. 
F.	Metal Flashing Sheet: Metal flashing sheet is specified in Division 07 Section - Sheet Metal Flashing and Trim.
PART 3    EXECUTION
3.1	EXAMINATION
A.	General:
1.	Examine substrates, areas, and conditions for compliance with requirements affecting performance of roofing system.
2.	Verify roof openings and penetrations are in place and set and braced, and roof drains are securely clamped in place.
3.	Verify wood cants, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations, and nailers match thicknesses of insulation.
B.	Steel Decks:
1.	Verify surface plane flatness and fastening of steel roof deck complies with requirements in Division 05 Section - Steel Decking. 
2.	Verify decking is visibly dry and free of moisture. 
3.	Verify decking is smooth and free of large cracks, holes, or sharp changes in elevation of the surface. 
4.	When applicable perform pull test with specific fastener being used on project to confirm fastener resistance meets requirements for that particular system.
C.	Existing Standing Seam and Light Gauge Decks:
1.	Verify decking is visibly dry and free of moisture. 
2.	Verify decking is smooth and free of large cracks, holes, or sharp changes in elevation of the surface.
3.	When applicable perform pull test with specific fastener being used on the project to confirm fastener resistance meets requirements for that particular system.
a.	Provide documentation of pull-out resistance values in accordance with ANSI/SPRI FX-1.
D.	Concrete Decks:
1.	Verify concrete curing compounds that will impair adhesion of roofing components to roof deck have been removed.
2.	Verify concrete substrate is visibly dry and free of moisture. 
E.	Wood Decks:
1.	Verify wood decking is visibly dry and free of moisture.
2.	Verify wood has ability to provide minimum fastener pull-out resistance.
a.	Provide documentation of pull-out resistance values in accordance with ANSI/SPRI FX-1.
F.	Cementitious Wood Fiber Decks /Tectum:
1.	Verify cementitious wood fiber substrate is visibly dry and free of moisture.
2.	Verify cementitious wood fiber has minimum base sheet fastener pull-out resistance.
3.	Include documentation of pull-out resistance values in accordance with ANSI/SPRI FX-1. 
4.	Include documentation of adhesion resistance values in accordance with ANSI/SPRI 1A-1.
G.	Lightweight Insulating Concrete:
1.	Verify lightweight insulating concrete substrate is visibly dry and free of moisture.
2.	Verify lightweight insulating concrete has minimum base sheet fastener pull-out resistance.
3.	Include documentation of adhesion resistance values in accordance with ANSI/SPRI 1A-1.
H.	Gypsum Deck:
1.	Verify gypsum is visibly dry and free of moisture with no signs of staining.
2.	Inspect deck for cracking and deflection of bulb tees. 
3.	Verify gypsum has minimum fastener pull-out resistance.
a.	Include documentation of pull-out resistance values in accordance with ANSI/SPRI FX-1.
4.	Include documentation of adhesion resistance values in accordance with ANSI/SPRI 1A-1.
I.	Ensure general rigidity and proper slope for drainage.
J.	Verify deck is securely fastened with no projecting fasteners and no adjacent units more than 1/16 inch (1.6 mm) out of plane relative to adjoining deck.
K.	Bring unacceptable panels to the attention of the General Contractor and Project Owner's Representative. Correct prior to installation of roofing system.
L.	If substrate preparation is the responsibility of another installer, notify Architect in writing of unsatisfactory preparation before proceeding.
M.	Do not begin installation until the substrates have been properly constructed and prepared.
3.2	PREPARATION
A.	Clean surfaces thoroughly prior to installation. Remove sharp projections, dust, debris, moisture, and other substances detrimental to roofing installation from substrate in accordance with roofing system manufacturer's written instructions.
B.	Prepare surfaces using methods recommended by manufacturer for achieving best result for substrate under project conditions.
C.	Prevent materials from entering and clogging roof drains and conductors and spilling or migrating onto surfaces of other construction. 
D.	If applicable, prime surface of deck at rate recommended by roofing manufacturer. Allow primer to dry.
E.	Proceed with each step of installation only after unsatisfactory conditions have been corrected.
3.3	RE-ROOF PREPARATION
A.	Remove all roofing membrane, surfacing, coverboards, insulation, fasteners, asphalt, pitch, adhesives, etc.
1.	Remove area no larger than can be re-roofed in one day.
B.	Tear out all base flashings, counter flashings, pitch pans, pipe flashings, vents, sumps and like components necessary for application of new membrane.
C.	Remove abandoned equipment curbs, skylights, smoke hatches, and penetrations.
1.	Install decking to match existing as directed by Owner's Representative.
D.	Raise, or disconnect by licensed craftsmen, if necessary, all HVAC units and other equipment supported by curbs to conform with the following: 
1.	Modify curbs as required to a minimum 8 inch (203.2 mm) base flashing height measured from the surface of new membrane to top of flashing membrane.
2.	Secure flashing and install new metal counterflashing prior to re-installation of unit.
3.	Perimeter nailers must be elevated to match elevation of new roof insulation.
E.	Immediately remove all debris from roof surface. Demolished roof system may not be stored on roof surface.
3.4	RE-COVER PREPARATION
A.	Prepare existing roof according to roofing system manufacturer's written instructions, applicable recommendations of roofing manufacturer, and requirements in this Section.
B.	Tear out all base flashings, counter flashings, pitch pans, pipe flashings, vents, sumps and like components necessary for application of new membrane.
C.	Disable existing roof membrane per manufacturer's written instruction.
D.	Remove existing membrane per manufacturer's written instructions.
E.	Remove and replace wet, deteriorated, or damaged roof insulation and decking as identified in moisture survey.
F.	Remove abandoned equipment curbs, skylights, smoke hatches, and penetrations. Install decking to match existing as directed by Owner's Representative.
G.	Raise, or disconnect by licensed craftsmen, if necessary, all HVAC units and other equipment supported by curbs to conform with the following: 
1.	Modify curbs as required to provide a minimum 8 inch (203.2 mm) base flashing height measured from surface of new membrane to top of flashing membrane.
2.	Secure top of flashing and install new metal counterflashing prior to re-installation of unit.
3.	Perimeter nailers must be elevated to match elevation of new roof insulation.
H.	Immediately remove all debris from roof surface. Demolished roof system may not be stored on roof surface. 
3.5	SUBSTRATE BOARD INSTALLATION
A.	Install substrate board with long joints in continuous straight lines, perpendicular to roof slopes with end joints staggered between rows. Tightly butt substrate boards together.
B.	Mechanically Fastened Substrate Board: Install substrate board and secure to deck using mechanical fasteners designed and sized for fastening specified substrate board to deck type.
1.	Fasten substrate board to top flanges of steel deck according to recommendations in FMG's Approval Guide for specified Windstorm Resistance Classification.
2.	Fasten substrate board to top flanges of steel deck to resist uplift pressure at corners, perimeter, and field of roof per roofing system manufacturer's written instructions.
3.	Fasten substrate board to top flanges of wood deck to resist uplift pressure at corners, perimeter, and field of roof per roofing system manufacturer's written instructions.
C.	Loose Laid Substrate Board: Loose lay substrate board, staggering joints with insulation board substrate.
D.	Adhered Substrate Board: Adhere substrate board to substrate as follows:
1.	Install in two-part urethane adhesive according to roofing system manufacturer's instruction.
2.	Install to resist uplift pressure at corners, perimeter, and field of roof.
3.6	SHEATHING PAPER INSTALLATION
A.	Loosely lay sheathing paper in a single layer over all wood deck and deck areas, side and end lapping each sheet a minimum of 2 inches and 6 inches, respectively.
1.	Seal side and end laps with tape.
2.	Seal side and end laps with adhesive.
3.7	BASE SHEET INSTALLATION
A.	Install one lapped base sheet course and mechanically fasten to substrate per roofing system manufacturer's written instructions.
1.	Enhance fastening rate in perimeter and corner zones per code requirements, wind uplift system approvals, or manufacturer's guarantee requirements, whichever is more stringent.
B.	Comply with roofing system manufacturer's written instructions for installing roof insulation.
3.8	VAPOR-RETARDER INSTALLATION
A.	Install polyethylene-sheet vapor retarder as a loosely laid single layer over area to receive vapor retarder, side and end lapping each sheet a minimum of 2 inches (50 mm) and 6 inches (150 mm).
1.	Seal side and end laps.
B.	Install two glass-fiber felt plies lapping each sheet 19 inches (483 mm) over preceding sheet. Embed each sheet in a solid mopping of hot roofing asphalt per manufacturer's written instructions. 
C.	Install modified bituminous vapor retarder sheet per roofing manufacturer's written instructions, starting at low point of roofing system. Extend roofing membrane sheets over and terminate beyond cants, installing as follows:
1.	Unroll roofing membrane sheets and allow to relax for minimum time required by manufacturer.
2.	Heat weld vapor retarder to substrate per roofing system manufacturer's written instructions.
3.	Adhere vapor retarder in a full mopping of hot asphalt to substrate per roofing system manufacturer's written instructions.
4.	Self-adhere vapor retarder to substrate per roofing system manufacturer's instructions.
5.	Adhere vapor retarder in ribbons to substrate per roofing system manufacturer's written instructions.
D.	Laps: Accurately align roofing membrane sheets without stretching and maintain uniform side and end laps. Stagger end laps. Completely bond and seal laps leaving no voids.
1.	Repair tears and voids in laps and lapped seams not completely sealed.
E.	Completely seal vapor retarder at terminations, obstructions, and penetrations.
3.9	INSULATION INSTALLATION
A.	Comply with roofing system manufacturer's written instructions for installation of roof insulation and cover board.
B.	Install tapered insulation under area of roofing to conform to slopes indicated.
C.	Install insulation boards with long joints in a continuous straight line. Joints must be staggered between rows, abutting edges and ends per manufacturer's written instructions. Fill gaps exceeding 1/4 inch (6 mm) with like material.
D.	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 boards where necessary at roof drains so completed surface is flush and does not restrict flow of water.
F.	Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.
G.	Preliminarily Fastened Insulation: Install insulation with fasteners at rate required by roofing system manufacturer, whichever is more stringent.
1.	Fasten top layer to resist uplift pressure at corners, perimeter, and roof field.
H.	Preliminarily Fastened Insulation for Mechanically Fastened Membrane Systems: Install insulation with fasteners at rate required by roofing system manufacturer and applicable authorities, whichever is more stringent.
1.	Fasten top layer to resist uplift pressure at corners, perimeter, and roof field.
I.	Adhered Insulation: Adhere insulation to substrate as follows:
1.	Install each layer in solid mopping of hot roofing asphalt according to roofing system manufacturer's instruction.
2.	Install each layer using a cold fluid-applied adhesive according to roofing system manufacturer's instruction. 
3.	Install each layer in two-part urethane adhesive according to roofing system manufacturer's instruction.
4.	Install each layer to resist uplift pressure at corners, perimeter, and roof field.
J.	Loose Laid Insulation with Top Insulation Layer Mechanically Fastened: Loose lay insulation with staggered joints and secure top layer of insulation to deck using mechanical fasteners designed and sized for fastening specified board-type to deck type. 
1.	Fasten top layer according to requirements in FMG's Approval Guide for specified Windstorm Resistance Classification.
2.	Fasten top layer to resist uplift pressure at corners, perimeter, and roof field.
K.	Loose Laid Insulation: Loose lay all layers of insulation with staggered joints. 
L.	Mechanically Fastened with Subsequent Layers Adhered Insulation: Secure first layer of insulation to deck using mechanical fasteners designed and sized for fastening specified board-type to deck type. 
1.	Fasten top layer according to requirements in FMG's Approval Guide for specified Windstorm Resistance Classification.
2.	Install subsequent layers in two-part urethane adhesive according to roofing system manufacturer's instruction.
3.	Install subsequent layers in hot asphalt according to roofing system manufacturer's instruction.
4.	Install each layer to resist uplift pressure at corners, perimeter, and roof field.
3.10	COVER BOARD INSTALLATION
A.	Comply with membrane roofing system manufacturer's written instructions for installing roof cover board.
B.	Install cover board with long joints in a continuous straight line. Joints must be staggered between rows, abutting edges and ends per manufacturer's written instructions. Fill gaps exceeding 1/4 inch (6 mm) with cover board.
1.	Cut and fit cover board within 1/4 inch (6 mm) of nailers, projections, and penetrations.
C.	Trim surface of cover board where necessary at roof drains so completed surface is flush and does not restrict flow of water.
1.	Install tapered edge strips at perimeter edges of roof that do not terminate at vertical surfaces.
D.	Preliminarily Fastened Cover Board for Mechanically Fastened Systems: Install cover board with fasteners at rate required by roofing system manufacturer or applicable authority, whichever is more stringent.
E.	Adhered Cover Board: Adhere cover board to substrate as follows:
1.	Install a solid mopping of hot roofing asphalt according to roofing system manufacturer's instruction.
2.	Install using cold fluid-applied adhesive according to roofing system manufacturer's instruction. 
3.	Install in two-part urethane adhesive according to roofing system manufacturer's instruction.
4.	Install to resist uplift pressure at corners, perimeter, and roof field.
F.	Mechanically Fastened Cover Board: Install cover board and secure to deck using mechanical fasteners designed and sized for fastening specified cover board to deck type.
1.	Fasten according to requirements in FMG's Approval Guide for specified Windstorm Resistance Classification.
2.	Fasten to resist uplift pressure at corners, perimeter, and roof field.
3.11	ROOFING MEMBRANE INSTALLATION, GENERAL
A.	Install roofing membrane in accordance with roofing system manufacturer's written instructions, applicable recommendations of roofing manufacturer and requirements in this Section.
B.	Where roof slope exceeds 1/2 inch (12.7 mm) per 12 inches (304.8 mm) (1:24), contact membrane manufacturer for installation instructions regarding installation direction and backnailing.
C.	Cooperate with testing and inspecting agencies engaged or required to perform services for installing roofing system.
1.	Provide tie-offs at end of each day's work to cover exposed roofing membrane sheets and insulation.
2.	Complete termination and base flashings and provide temporary seals.
3.	Remove and discard temporary seals before beginning work on adjoining roofing. 
D.	Asphalt Heating: Heat roofing asphalt to temperature recommended by roofing manufacturer to flux modified membrane. Do not exceed roofing asphalt manufacturer's recommended temperature limits during roofing asphalt heating. Discard roofing asphalt maintained at temperature exceeding finished blowing temperature for more than 4 hours.
E.	Substrate-Joint Penetrations: Prevent roofing asphalt from penetrating substrate joints, entering building, or damaging roofing system components or adjacent building construction.
3.12	SBS-MODIFIED BITUMINOUS MEMBRANE INSTALLATION
A.	Install base sheet, one or two modified bituminous roofing membrane sheets, and cap sheet according to roofing manufacturer's written instructions, starting at low point of roofing system. Extend roofing membrane sheets over and terminate beyond cants, with the following installation method:
1.	Unroll roofing membrane sheets and allow them to relax.
2.	Install one lapped base sheet course and mechanically fasten to substrate according to roofing system manufacturer's written instructions.
a.	Enhance fastening rate in perimeter and corner zones according to code or manufacturer, whichever is more stringent.
b.	Side and end laps must be installed using heat welding techniques.
c.	Fasteners in field of sheets must be stripped in per manufacturer's requirements prior to installing cap sheet.
3.	Self-adhere modified bituminous roofing membrane, base, cap, sheet to substrate according to roofing system manufacturer's instruction.
4.	Adhere modified bituminous roofing membrane base, cap, sheet to substrate in a solid mopping of hot roofing asphalt applied at temperatures recommended by roofing system manufacturer.
5.	Adhere modified bituminous roofing membrane, base, cap, sheet to substrate in cold-applied adhesive according to roofing system manufacturer's instruction.
6.	Heat weld modified bituminous roofing membrane, base, cap, sheet to substrate according to roofing system manufacturer's instruction.
B.	Laps: Accurately align roofing membrane sheets, without stretching, and maintain uniform side and end laps. Stagger end laps. Completely bond and seal laps, leaving no voids.
1.	Repair tears and voids in laps and lapped seams not completely sealed.
2.	Apply roofing granules to cover exuded bead at laps while bead is hot.
C.	Install roofing membrane sheets so side and end laps shed water.
3.13	FLASHING AND STRIPING INSTALLATION
A.	Install base flashing over cant strips and other sloping and vertical surfaces, at roof edges, and at penetrations through roof, and secure to substrates according to roofing system manufacturer's written instructions and as follows:
1.	Prime substrates with asphalt primer if required by roofing system manufacturer.
2.	Backer Sheet Application: Mechanically fasten backer sheet to walls or parapets. 
3.	Backer Sheet Application: Adhere backer sheet to substrate in a solid mopping of hot roofing asphalt.
4.	Backer Sheet Application: Adhere backer sheet to substrate in approved adhesive applied at rate required by roofing system manufacturer. 
5.	Backer Sheet Application: Heat Weld backer sheet to substrate as required by roofing system manufacturer. 
6.	Backer Sheet Application: Self-adhere backer sheet to substrate as required by roofing system manufacturer. 
7.	Flashing Sheet Application: Adhere flashing sheet to substrate in a solid mopping of hot roofing asphalt. Apply hot roofing asphalt to back of flashing sheet as required by roofing system manufacturer.
8.	Flashing Sheet Application: Adhere flashing sheet to substrate in approved adhesive applied at rate required by roofing system manufacturer.
9.	Flashing Sheet Application: Heat weld flashing sheet to substrate as required by roofing system manufacturer.
10.	Flashing Sheet Application: Self-adhere backer sheet to substrate as required by roofing system manufacturer. 
B.	Extend base flashing up walls or parapets 8 inches (200 mm) above roofing membrane. Refer to manufacturer's standard flashing details.
C.	Mechanically fasten top of base flashing securely at terminations and perimeter of roofing.
1.	Seal top termination of base flashing with a strip of glass-fiber fabric set in MBR Flashing cement.
D.	Roof Drains: Set 30-by-30-inch (760-by-760-mm), 4 lbs (1.81 kg) lead flashing sheet in a bed of MBR Flashing Cement on completed roofing membrane. Cover metal flashing with roofing membrane cap-sheet stripping and extend a minimum of 4 inches (100 mm) beyond edge of metal flashing onto field of roofing membrane. Clamp roofing membrane, metal flashing, and stripping into roof-drain clamping ring.
E.	Roof Drains: Flash drain using liquid applied flashing system. Clamp roofing membrane, flashing, and stripping into roof-drain clamping ring.
1.	Install stripping according to roofing system manufacturer's written instructions.
F.	Flash all penetrations using liquid applied flashing system.
3.14	EDGE METAL INSTALLATION
A.	Examine substrates and conditions under which sheet metal flashing and trim are to be installed and verify work may properly commence. Do not proceed with installation until unsatisfactory conditions have been corrected. 
B.	Provide edge details as indicated on the Drawings. Install in accordance with the membrane manufacturer's requirements and SMACNA's - Architectural Sheet Metal Manual. 
C.	Join individual sections in accordance with the membrane manufacturer's requirements and SMACNA's - Architectural Sheet Metal Manual.
3.15	COATING INSTALLATION
A.	Ensure that all surfaces are clean, dry, and free of any dirt, grease, oil, or other debris that may interfere with proper adhesion.
B.	Apply coating to roofing membrane and base flashings as recommended by the manufacturer. Apply in two coats. Allow the first coat to completely dry before applying the second coat.
3.16	WALKWAY INSTALLATION
A.	Walkway Pads: Install walkway pads using units of size indicated or, if not indicated, of manufacturer's standard size according to walkway pad manufacturer's written instructions.
B.	Sweep away loose aggregate surfacing and set walkway pads in additional flood coat of hot roofing asphalt.
C.	Sweep away loose aggregate surfacing and set walkway pads in additional flood coat of hot roofing cold applied adhesive.
D.	Walkway Cap Sheet Strips: Install roofing membrane walkway cap sheet strips over roofing membrane in hot roofing asphalt.
E.	Walkway Cap Sheet Strips: Install roofing membrane walkway cap sheet strips over roofing membrane in cold-applied adhesive.
F.	Walkway Cap Sheet Strips: Install roofing membrane walkway cap sheet strips over roofing membrane by heat weld application.
G.	Roof-Paver Walkways: Install walkway roof pavers with applicable slip sheet per manufacturer's written instructions in locations indicated. 
3.17	FIELD QUALITY CONTROL
A.	Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
B.	Owner or designated representative will provide on-site observation and inspection during installation.
C.	Owner will engage a qualified independent testing and inspecting agency to perform roof tests and inspections and prepare test reports.
D.	Final Roof Inspection: Arrange for roofing system manufacturer's technical representative 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.
E.	Repair or remove and replace components of roofing system where test results or inspections indicate that they do not comply with specified requirements.
F.	Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.
G.	Manufacturer's Services: Coordinate manufacturer's services in accordance with appropriate sections in Division 01.
3.18	CLEANING AND PROTECTION
A.	Correct deficiencies in or remove roofing system that does not comply with requirements, repair substrates, and repair or reinstall roofing system to a condition free of damage and deterioration at time of Substantial Completion according to guarantee requirements.
B.	Clean products in accordance with the manufacturer's recommendations. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction.
C.	Protect roofing system from damage and wear during remainder of construction period.

END OF SECTION