SECTION 07 5217
Styrene-butadiene-styrene (SBS) modified bituminous
membrane roofing, Cold Applied
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LANL MASTER SPECIFICATION
This template must be edited for each project. In doing so, specifier must add job-specific requirements. Brackets are used in the text to indicate designer choices or locations where text must be supplied by the designer. Once the choice is made or text supplied, remove the brackets. The specifications must also be edited to delete specification requirements for processes, items, or designs that are not included in the project, add specification requirements not contained herein as well as delete specifier’s notes such as these.Additional tailoring requirements are contained in ESM Chapter 1 Section Z10 Att. F, Specifications.
To seek a variance from requirements in the specifications that are applicable, contact the Engineering Standards Manual Architectural POC. Please contact POC with suggestions for improvement as well.
When assembling a specification package, include applicable specifications from all Divisions, especially Division 1, General requirements.
Specification developed for ML-4 projects. For ML-1, 2, and 3 applications, additional requirements and independent reviews should be added if increased confidence in procurement or execution is desired; see ESM Chapter 1 Section Z10 Specifications and Quality sections.
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PART 1GEnERAl
1.1Summary
A.Section Includes
1.Styrene-butadiene-styrene (SBS) modified bituminous membrane roofing-cold applied.
2.Substrate boards.
3.Roof Insulation.
4.Vapor retarder.
5.Cover board.
B.[Section includes the installation of insulation strips in ribs of acoustical roof deck. Insulation strips are furnished under Section 05 3000 Metal Decking.]
C.Related Sections
1.[Section 02 4119 Selective Demolition]
2.[Section 02 8233 Removal and Disposal of Asbestos (future Section for re-roofing of older roofs)]
3.[Section 06 1000, Rough Carpentry for Wood, Nailers, Curbs and Blocking]
4.[Section 07 0150.19, Preparation for Re-roofing]
5.[Section 07 6200, Sheet Metal Flashing and Trim]
6.[Section 07 7100, Roof Specialties]
7.[Section 07 9200, Joint Sealants for Joint Sealants, Joint Fillers and Joint Preparation]
8.[Section 22 1413, Facility Storm Drainage Piping for Roof Drains]
1.2references
A.Definitions
1.Roofing Terminology: Refer to ASTM D1079 and the glossary of the National Roofing Contractors Association (NRCA) Roofing and Waterproofing Manual for definitions of roofing terms related to this section.
B.References
1.American Society of Civil Engineers (ASCE).
a.ASCE 7 – Minimum Design Loads for Buildings and Other Structures.
2.ASTM International
a.ASTM C 208 - Standard Specification for Cellulosic Fiber Insulating Board.
b.ASTM C552- Standard Specification for Cellular Glass Thermal Insulation.
c.ASTM C578- Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.
d.ASTM C 728- Standard Specification for Perlite Thermal Insulation Board.
e.ASTM C 1177 – Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing.
f. ASTM C 1278 - Standard Specification for Fiber-Reinforced Gypsum Panel.
g.ASTM C 1289- Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.
h.ASTM C 1396 - Standard Specification for Gypsum Board.
i.ASTM D 41- Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.
j.ASTM D 226 - Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.
k.ASTM D 448 - Standard Classification for Sizes of Aggregate for Road and Bridge Construction.
l.ASTM D 1079 - Standard Terminology Relating to Roofing and Waterproofing.
m.ASTM D 1970 - Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection.
n.ASTM D 2178 - Standard Specification for Asphalt Glass Felt Used in Roofing and Waterproofing.
o.ASTM D 3617 - Standard Practice for Sampling and Analysis of Built-Up Roof Systems During Application.
p.ASTM D 4263 - Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method.
q.ASTM D 4397 - Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications.
r.ASTM D 4586- Standard Specification for Asphalt Roof Cement, Asbestos-Free.
s.ASTM D 6163 – Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements.
t.ASTM D 6164 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements.
u.ASTM E 84 – Standard Test Method for Surface Burning Characteristics of Building Materials.
v.ASTM E 1980 - Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces.
3.Factory Mutual (FM Global) – Factory Mutual Standard 4470 – Approval Standard for Class 1 Roof Covers.
4.Membrane Immersion Test: Modified Bitumen Membrane Asphaltic Impregnation Evaluation, as published in the “Proceedings of the Fourth International Symposium on Roofing Technology.”
5.National Roofing Contractors Association (NRCA)- Low Slope Roofing and Waterproofing Manual, Current Edition.
6.National Institute of Standards and Technology (NIST) PS 2 – Voluntary Product Standard PS 2, Performance Standard for Wood-Based Structural-Use Panels.
7.Underwriters Laboratories (UL) – Roofing Systems and Materials Guide (TGFU).
1.3administrative requirements
A.Pre-installation Roofing Conference: Conduct conference at [Project site] <Insert location>.
1.Subcontractor to organize and document meeting with LANL Architect of Record, LANL’s Subcontract Technical Representative, LANL’s insurer if applicable, testing and inspecting agency representative, roofing installer, roofing system manufacturer’s representative, deck installer, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof-mounted equipment.
2.Review methods and procedures related to roofing installation, including manufacturer’s written instructions.
3.Review and finalize construction schedule and verify availability of materials, installer’s personnel, equipment, and facilities needed to make progress and avoid delays.
4.Examine deck substrate conditions and finishes for compliance with requirements, including flatness and fastening.
5.Review structural loading limitations of roof deck during and after roofing.
6.Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that will affect roofing system.
7.Review governing regulations and requirements for insurance and certificates if applicable.
8.Review temporary protection requirements for roofing system during and after installation.
9.Review roof observation and repair procedures after roofing installation.
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Edit submittals to include only those absolutely necessary to assure requirements and features that are important for the specific project will be met.
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1.4action SUBMITTALS
A.[Material List: A complete listing of all products intended for use on the project and be coordinated with the shop drawings. List shall include all products and accessories to be incorporated into the finished roof system. Major items in the materials list include:
1.Insulation
2.Cover boards
3.APP base and cap sheets
4.Adhesives
5.Flashing systems
6.Accessories (primers, cements, fabric, caulking)]
B.[Product Data: Manufacturer’s data sheets on each product to be used, including:
1.Preparation instructions and recommendations.
2.Storage and handling requirements and recommendations.
3.Specifications and general recommendations from manufacturers of modified bitumen roofing system materials to include the types of roofing required. Include any data requiring special application considerations by the manufacturer.
4.Submit Material Safety Data Sheets on all roofing materials to be used.]
C.[Shop Drawings: Provide plan section, elevation and perspective drawings as necessary to depict all flashing and project conditions on the project, including but not limited to the following:
1.Roof system and base flashing configuration.
2.Penetration details.
3.Termination details.
4.Fastening patterns.
5.Tapered insulation design.]
D.[Selection Samples: For each product specified, two samples representing manufacturer’s full range of available colors and types.]
E.[Verification Samples: For each finish product specified, two samples representing actual product, color and finish.]
F.[Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in “Performance Requirements” Article.
1.Submit evidence of complying with performance requirements.]
G.[Product Test Reports: Based on evaluation of comprehensive tests performed by manufacturer and witnessed by a qualified testing agency, for components of membrane roofing system.]
H.[Research/Evaluation Reports: For components of membrane roofing system, from [the ICC-ES] <Insert applicable model code organization>.]
I.[Manufacturer’s Instructions:
1.Manufacturer’s published installation instructions and methods.]
J.[Qualification Data: For qualified [Installer] [and] [manufacturer].]
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Include only sustainable design submittals that are appropriate for the project’s sustainable design goals, if any.
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1.5sustainable design submittals
A.Product Test Reports for roof materials, indicating that roof materials comply with Solar Reflectance Index requirement.
B.Product Data for adhesives and sealants, including printed statement of VOC content.
C.Submit manufacturer’s documentation of Energy Star labeled roofing materials.
1.6close-out submittals
A.Maintenance Data: For roofing system to include in maintenance manuals.
B.Warranties:
1.Submit copy of the membrane manufacturer’s warranty covering materials.
2.Submit copy of the Roofing Subcontractor’s warranty covering workmanship.
1.7quality assurance
A.Apply roofing system by an approved Subcontractor authorized prior to bid by the roof membrane manufacturer. Prior to bid, the Roofing Subcontractor must have completed a minimum of 500 roofing squares of SBS membrane in the Southwest. To qualify for this requirement, the completed membrane must have met all conditions to obtain material and labor warranty and must be performing successfully.
B.Membrane manufacturer to provide a list of projects, completed in the Southwest, where the specified membrane has been in place and performing successfully for a period of not less than five (5) years. A minimum of 500 roofing squares must have been installed to meet this requirement.
C.Do not deviate from this specification or the approved shop drawings without prior written approval by the manufacturer and the LANL Subcontract Technical Representative (STR).
D.Code Requirements: Meet the requirements of the following recognized code approval or testing agencies. These requirements are minimum standards and no roofing work will commence without written documentation of the system’s compliance.
1.Underwriters Laboratories (UL) ClassA membrane.
2.Factory Mutual (FM) 1-90 uplift rating, as indicated on Contract Documents per FM Approval Standard No. 4470.
E.Energy Star Roof Compliance: Proposed roofing system will be Energy Star Roof-compliant and roofing materials will be Energy Star labeled.
F.For new installations, ponding will not occur in accordance with NRCA Roofing and Waterproofing Manual good roof design practice, which dictates that there will be no ponding water present 48-hours after rainfall.
G.There will be no more than 20 patches per 10,000 SF on new construction.
H.The approved Manufacturer shall make site visits to the job during construction and after construction by a Certified Technical Representative of the Company. Visits to include:
1.Pre-construction meeting
2.Project mid-point inspection
3.Final Inspection
4.[18-month warranty inspection]
1.8delivery, storage, and handling
A.Store products in manufacturer’s unopened packaging until ready for installation.
B.Deliver roofing materials to the site in original containers, with factory seals intact.
C.Store pail goods in their original undamaged containers in a clean, dry location within their specified temperature range.
D.Store roll goods on end on pallets in a clean, dry, protected area. Do not double stack modified bitumen products.
E.Protectroof 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.
F.Store and dispose of hazardous materials, and materials contaminated by hazardous materials, in accordance with requirements of local authorities having jurisdiction.
1.9Project conditions
A.Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer’s absolute limits.
B.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.
1.10Warranty
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.
1.Special warranty includes membrane roofing, base flashings, [roof insulation], [fasteners], [cover boards], [substrate board] [roofing accessories] [roof pavers] and other components of membrane roofing system.
2.Warranty Period: [10] [15] <Insert number> years from date of Substantial completion.
B.Special Project Warranty: Submit roofing Installer’s warranty, signed by Installer, covering the Work of this Section, including all components of membrane roofing system such as membrane roofing, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarder, and walkway products, for the following warranty period:
1.Warranty Period: [Two] <Insert number> years from date of Substantial Completion.
PART 2PRODUCTS
2.1MANUFACTURERS
A.Manufacturers: Subject to compliance with requirements, provide products by one of the following. No substitutions for these manufacturers permitted.
************************************************************************************************************ Manufacturer’s specification number is based on application over non-nailable roof insulation. Modify specification number as required for steel, concrete, primer, light weight concrete, nailable or existing built-up roof substrates.
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1.Mineral-surfaced, modified-bitumen capsheet and modified-bitumen base sheet installed in cold-applied adhesive, UL Class A, Roofing Manufacturer’s 20-year type system.
a.Firestone Building Products, Specification No. [QS 539 SBS – Cool Concrete] [QS 540 SBS – Cool Insulated] [QS 543 SBS – Re-Cover]
b.Johns Manville Corporation Specification No. 2FID-CA
c.Siplast/Icopal Specification No. 2030 IA
2.2performance / design criteria
A.General Performance: Installed membrane roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Membrane roofing and base flashings shall remain watertight.
B.Material Compatibility: Provide roofing materials that are compatible with one another under conditions of service and application required, as demonstrated by membrane roofing manufacturer based on testing and field experience.
C.Perform work in accordance with all federal, state and local codes.
D.Exterior Fire Test Exposure: Provide a roofing system achieving a UL Class rating for roof slopes indicated on the Contract Drawings.
1.UL Class A rating.
E.Windstorm Classification: Provide a roofing system which will achieve the required uplift resistance as calculated in accordance with the most current revision of ASCE.
1.90 psf of uplift resistance.
F.FM Approvals Listing: Provide membrane roofing, base flashings, and component materials that comply with requirements in current FM Approval Guide. Identify materials with FM Approvals markings.
1.Fire/Windstorm Classification: Class 1A-90
2.Hail Resistance Rating: [MH] [SH].
G.Foam Plastic Insulation: Maximum 75/450 flame/spread smoke developed index when tested in accordance with ASTM E84.
H.Other Insulation: Maximum 25/450 flame spread/smoke developed index when tested in accordance with ASTM E84.
I.Energy Performance: Provide roofing system with initial Solar Reflectance Index not less than 78 when calculated according to ASTM E 1980 based on testing identical products by a qualified testing agency.
J.Energy Performance: Provide roofing system that is listed on DOE’s ENERGY STAR “Roof Products Qualified Product List” for low-slope roof products.
K.Energy Performance: Provide roofing system with initial Solar Reflectance not less than 0.70 and Thermal Emittance not less than 0.75 when tested according to Cool Roof Rating Council’s CRRC-1.
L.Manufacturer’s Requirements
1.Except as modified and supplemented herein, follow the Roofing Manufacturer’s and other materials manufacturer’s catalogs, general and special requirements, and specific application recommendations.
2.With respect to methods of installation, industry practices apply only when these specifications do not address the matter.
M.Slopes and Underlying Materials
1.Use materials which are proper for the slopes and for the underlying material to which the other materials are attached.
N.Roof Membrane: Styrene-butadiene-styrene (SBS) modified bituminous capsheet, ply sheet, and base sheet in cold-applied adhesive with heat welded seams, UL Class A, Roofing Manufacturer’s 20-year type system.
O.Bituminous Flashings
1.Composition base flashings consisting of
a.Ply of modified-bitumen base sheet,
b.Ply of mineral-surfaced modified-bitumen flashing sheet; and
c.Modified-bitumen flashing cement or cold-applied adhesive
2.Roof drain flashings consisting of:
a.Modified-bitumen membrane base sheet and ply sheet in adhesive.
b.Primed metal sump flashing in modified-bitumen flashing cement.
3.One ply of modified-bitumen ply sheet and modified-bitumen flashing cement.
2.3materials
A.Roof Insulation
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Select roof insulation from the following as required for compatibility with SBS cold-applied roofing system and applicable roof design requirements.
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1.General: Preformed roof insulation boards manufactured [or approved] by roofing manufacturer, selected from manufacturer’s standard sizes and suitable for application, of thicknesses indicated [and that produces FM Approvals-approved roof insulation].
2.Extruded-Polystyrene Board Insulation: ASTM C 578, [Type IV, 1.6-lb/cu.ft.] [Type X, 1.3-lb/cu.ft.] minimum density, square edged.
3.Molded-Polystyrene Board Insulation: ASTM C 578 [Type II, 1.35-lb/cu.ft.] [Type VIII, 1.15-lb/cu.ft.] [Type IX, 1.8-lb/cu.ft.] minimum density.
4.Composite Molded-Polystyrene Board Insulation: ASTM C 578, [Type II, 1.35-lb/cu.ft.] [Type VIII, 1.15-lb/cu.ft.] [Type IX, 1.8-lb/cu.ft.] minimum density, with factory-applied facings as follows:
a.Facer: ASTM C 208, Type II, Grade 2, cellulosic-fiber insulation board, asphalt coated, ½ inch thick.
b.Facer: NIST PS 2, Exposure 1, OSB, 7/16 inch thick.
5.Polyisocyanurate Board Roof Insulation: Rigid, cellular thermal insulation with polyisocyanurate closed-cell foam core with a rated flame spread of 25 or less according to ASTM E 84 and manufacturer's standard fiberglass reinforced facing laminated to both sides; Insulation shall meet the new LTTR requirements of ASTM C1289 Standard, Type II Class 1, Grade 2 (20 psi).