01b_General Specification - EPDM Roofing.pdf

SELFRIDGE ANGB, MICHIGAN

07 01 50.19 - 1 1 PREPARATION FOR RE-ROOFING

SECTION 07 01 50.19 - PREPARATION FOR RE-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. Section Includes:

1. Partial roof tear-off.

2. Temporary roofing membrane.

3. Roof re-cover preparation.

4. Removal of base flashings.

B. Related Sections:

1. Section 01 10 00, Summary of Work, for use of the premises and phasing requirements.

2. Section 01 50 00, Construction Facilities and Temporary Controls, for temporary construction and environmental-protection measures for reroofing preparation.

3. Division 23 Sections for HVAC equipment removal and reinstallation.

4. Division 26 Sections for electrical equipment disconnection and reconnection.

1.3 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, reinstalled, or otherwise indicated to remain the Government's property, demolished materials shall become Contractor's property and shall be removed from Project site.

1.4 DEFINITIONS

A. Roofing Terminology: Refer to ASTM D 1079 and glossary in NRCA's "The NRCA Roofing and Waterproofing Manual" for definition of terms related to roofing work in this Section.

B. Existing Membrane Roofing System: PVC roofing membrane, roof insulation, surfacing, and components and accessories between deck and roofing membrane.

C. Partial Roof Tear-Off: Removal of existing membrane roofing system and selected components and accessories from existing membrane roofing system.

07 01 50.19 - 2 2 PREPARATION FOR RE-ROOFING

D. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be retained or removed and reinstalled.

E. Existing to Remain: Existing items of construction that are not indicated to be removed.

1.5 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Temporary Roofing: Include Product Data and description of temporary roofing system. If temporary roof will remain in place, submit surface preparation requirements needed to receive permanent roof, and submit a letter from roofing membrane manufacturer stating acceptance of the temporary membrane and that its inclusion will not adversely affect the roofing system's resistance to fire and wind or its FM Global rating.

C. Fastener pull-out test report.

D. Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including exterior and interior finish surfaces, submit before Work begins.

E. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a landfill facility licensed to accept hazardous wastes. Provide documentation that complies with the requirements of Selfridge ANG Base indicated in Division 01 herein.

F. Qualification Data: Provide documentation that Installer is approved by warrantor of existing roofing system.

1.6 QUALITY ASSURANCE

A. Installer Qualifications: Provide documentation that Installer of new membrane roofing system is approved by warrantor of existing roofing system to work on existing roofing.

B. Regulatory Requirements: Comply with governing EPA notification regulations before beginning membrane roofing removal. Comply with hauling and disposal regulations of Selfridge ANG Base.

C. Reroofing Conference: Conduct conference at the Project site.

1. Meet with the Contracting Officer; Contracting Officer's insurer if applicable; testing and inspecting agency representative; roofing system manufacturer's representative; deck Installer; roofing Installer including project manager, superintendent, and foreman; and installers whose work interfaces with or affects reroofing including installers of roof accessories and roof-mounted equipment.

2. Review methods and procedures related to roofing system tear-off and replacement including, but not limited to, the following:

a. Reroofing preparation, including membrane roofing system manufacturer's written instructions.

07 01 50.19 - 3 3 PREPARATION FOR RE-ROOFING

b. Temporary protection requirements for existing roofing system that is to remain during and after installation.

c. Existing roof drains and roof drainage during each stage of reroofing, and roof drain plugging and plug removal requirements.

d. Construction schedule and availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.

e. Condition and acceptance of existing rigid insulation, roof deck and base flashing substrate for reuse.

f. Structural loading limitations of deck during reroofing.

g. Base flashings, special roofing details, drainage, penetrations, equipment curbs, and condition of other construction that will affect reroofing.

h. HVAC shutdown and sealing of air intakes.

i. Shutdown of fire-suppression, -protection, and -alarm and -detection systems.

j. Asbestos removal and discovery of asbestos-containing materials.

k. Governing regulations and requirements for insurance and certificates if applicable.

l. Existing conditions that may require notification of Contracting Officer before proceeding.

1.7 PROJECT CONDITIONS

A. The Government will occupy portions of building immediately below reroofing area. Conduct reroofing so the Government's operations will not be disrupted. Provide Contracting Officer with notice of activities that may affect the Government's operations as required by Division 01 herein.

1. Coordinate work activities daily with Contracting Officer so the Government can place protective dust or water leakage covers over sensitive equipment or furnishings, shut down HVAC and fire-alarm or -detection equipment if needed, and evacuate occupants from below the work area.

2. Before working over structurally impaired areas of deck, notify the Government to evacuate occupants from below the affected area. Verify that occupants below the work area have been evacuated before proceeding with work over the impaired deck area.

B. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and landscaping from damage or soiling from reroofing operations.

C. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities.

D. Conditions existing at time of inspection for bidding will be maintained by the Government as far as practical.

E. Limit construction loads on roof to 200 pounds rooftop equipment wheel loads and 20 psf for uniformly distributed loads.

F. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather conditions permit Work to proceed without water entering existing roofing system or building.

07 01 50.19 - 4 4 PREPARATION FOR RE-ROOFING

G. Hazardous Materials: It is not expected that hazardous materials such as asbestos-containing materials will be encountered in the Work.

1. If materials suspected of containing hazardous materials are encountered, do not disturb;

immediately notify the Contracting Officer. Hazardous materials will be removed by the Government under a separate contract.

1.8 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during reroofing, by methods and with materials so as not to void existing roofing system warranty. Notify warrantor before proceeding.

1. Notify warrantor of existing roofing system on completion of reroofing, and obtain documentation verifying that existing roofing system has been inspected and warranty remains in effect. Submit documentation at Project closeout.

PART 2 - PRODUCTS

2.1 INFILL MATERIALS

A. Use infill materials matching existing membrane roofing system materials unless otherwise indicated.

1. Infill materials are specified in Section 07 52 16, Styrene-Butadiene-Styrene (SBS) Modified Bituminous Membrane Roofing.

2.2 TEMPORARY ROOFING MATERIALS

A. Design and selection of materials for temporary roofing are responsibilities of Contractor.

B. Sheathing Paper: Red-rosin type, minimum 3 lb/100 sq. ft. (0.16 kg/sq. m).

C. Base Sheet: ASTM D 4601, Type II, nonperforated, asphalt-impregnated and -coated, glass-fiber sheet.

D. Glass-Fiber Felts: ASTM D 2178, Type IV, asphalt-impregnated, glass-fiber felt.

E. Asphalt Primer: ASTM D 41.

F. Roofing Asphalt: ASTM D 312, Type III or IV.

2.3 RECOVER BOARDS

A. As indicated in Section 07 52 16, Styrene-Butadiene-Styrene (SBS) Modified Bituminous Membrane Roofing.

07 01 50.19 - 5 5 PREPARATION FOR RE-ROOFING

2.4 AUXILIARY REROOFING MATERIALS

A. General: Auxiliary reroofing preparation materials recommended by roofing system manufacturer for intended use and compatible with components of existing and new membrane roofing system.

B. Base Sheet Fasteners: Capped head, factory-coated steel fasteners, listed in FM Approval's "Approval Guide."

C. Metal Flashing Sheet: Metal flashing sheet is specified in Section 07 62 00, Sheet Metal Flashing and Trim.

PART 3 - EXECUTION

3.1 PREPARATION

A. Coordinate with Contracting Officer to shut down air-intake equipment in the vicinity of the Work. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork.

B. During removal operations, have sufficient and suitable materials on-site to facilitate rapid installation of temporary protection in the event of unexpected rain.

C. Maintain roof drains in functioning condition to ensure roof drainage at end of each workday.

Prevent debris from entering or blocking roof drains and conductors. Use roof-drain plugs specifically designed for this purpose. Remove roof-drain plugs at end of each workday, when no work is taking place, or when rain is forecast.

1. If roof drains are temporarily blocked or unserviceable due to roofing system removal or partial installation of new membrane roofing system, provide alternative drainage method to remove water and eliminate ponding. Do not permit water to enter into or under existing membrane roofing system components that are to remain.

D. Verify that rooftop utilities and service piping have been shut off before beginning the Work.

3.2 ROOF TEAR-OFF

A. General: Notify Contracting Officer each day of extent of roof tear-off proposed for that day and obtain authorization to proceed as indicated in Selfridge ANG Base requirements Division 01 herein.

B. Remove protection mat and extruded-polystyrene insulation from protected roofing membrane.

1. Discard extruded-polystyrene insulation that is wet and exceeds 8 lb/cu. ft.

(128 kg/cu. m).

2. Store extruded-polystyrene insulation for reuse and protect from physical damage.

07 01 50.19 - 6 6 PREPARATION FOR RE-ROOFING

C. Partial Roof Tear-Off: Remove existing roofing membrane and immediately check for presence of moisture by visually observing cover boards, roof insulation, and substrate boards that will remain.

1. Coordinate with Contracting Officer's inspector to schedule times for tests and inspections immediately after membrane removal.

2. With an electrical capacitance moisture-detection meter, spot check cover boards, roof insulation, and substrate boards that will remain.

3. Remove wet or damp boards and roof insulation. Notify Contracting Officer of extent of replacement necessary to comply with new roof warranty terms.

4. Bitumen and felts that are firmly bonded to concrete decks are permitted to remain if felts are dry. Remove unadhered bitumen and felts and wet felts.

5. Remove excess asphalt from steel deck. A maximum of 15 lb/100 sq. ft. (0.72 kg/sq. m) of asphalt is permitted to remain on steel decks.

6. Remove fasteners from deck as necessary for correct installation of new roofing system.

3.3 DECK PREPARATION

A. Inspect deck after tear-off of membrane roofing system.

B. If broken or loose fasteners that secure deck panels to one another or to structure are observed or if deck appears or feels inadequately attached, immediately notify Contracting Officer. Do not proceed with installation until directed by Contracting Officer.

C. If deck surface is not suitable for receiving new roofing or if structural integrity of deck is suspect, immediately notify Contracting Officer. Do not proceed with installation until directed by Contracting Officer.

D. Provide additional deck fastening as indicated in the Contract Documents.

3.4 TEMPORARY ROOFING MEMBRANE

A. Install approved temporary roofing membrane over area to be reroofed.

B. Remove temporary roofing membrane before installing new roofing membrane.

3.5 ROOF RE-COVER PREPARATION

A. Remove substrate irregularities that inhibit new recover boards from conforming to substrate.

1. Clean substrate of contaminants such as dirt, debris, oil, and grease that can affect adhesion of coated foamed roofing.

2. Power vacuum the existing roof surface. If recommended by foam manufacturer, prime dried surface at recommended rate with recommended primer.

3. Provide additional uplift fasteners for existing roofing system with new screws and plates applied to each roof zone at densities required by roofing manufacturer.

07 01 50.19 - 7 7 PREPARATION FOR RE-ROOFING

4. Verify that surface is dry by pressing litmus paper to surface areas most likely to retain moisture, such as shaded areas and low spots. If paper changes color, surface is too wet to apply foam.

5. Build up isolated low spots on existing roof as necessary to prevent ponding.

3.6 EXISTING BASE FLASHINGS

A. Remove existing base flashings around parapets, curbs, walls, and penetrations.

1. Clean substrates of contaminants such as asphalt, sheet materials, dirt, and debris.

B. Do not damage metal counterflashings that are to remain. Replace metal counterflashings damaged during removal with counterflashings of same metal, weight or thickness, and finish.

C. Inspect parapet sheathing for deterioration and damage. If parapet sheathing has deteriorated, immediately notify Contracting Officer.

3.7 FASTENER PULL-OUT TESTING

A. Perform fastener pull-out tests according to SPRI FX-1, and submit test report to roofing membrane manufacturer for approval prior to installing new membrane roofing system.

1. Obtain roofing membrane manufacturer's approval to proceed with specified fastening pattern. Roofing membrane manufacturer may furnish revised fastening pattern commensurate with pull-out test results.

3.8 RECOVER BOARD INSTALLATION

A. Install recover boards over roof insulation with long joints in continuous straight lines and end joints staggered between rows. Loosely butt recover boards together.

1. Tape joints of recover boards if required by roofing membrane manufacturer.

2. Fasten recover boards to resist wind-uplift pressure at corners, perimeter, and field of roof specified in Section 07 52 16, Styrene-Butadiene-Styrene (SBS) Modified Bituminous Membrane Roofing.

3. Install additional fasteners near board corners and edges as necessary to conform boards to substrate and to adjacent boards.

3.9 DISPOSAL

A. Collect demolished materials and place in containers. Promptly dispose of demolished materials per the requirements of Selfridge ANG Base. Do not allow demolished materials to accumulate on-site.

1. Storage or sale of demolished items or materials on-site is not permitted.

07 01 50.19 - 8 8 PREPARATION FOR RE-ROOFING

B. Transport and legally dispose of demolished materials off of the Government’s property.

END OF SECTION 07 01 50.19

07 21 00 1 THERMAL INSULATION

SECTION 07 21 00 - THERMAL INSULATION

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. Section Includes:

1. Foam-plastic board insulation.

2. Glass-fiber blanket insulation.

3. Vapor retarders.

B. Related Section: Section 07 52 16, Styrene-Butadiene-Styrene (SBS) Modified Bituminous Membrane Roofing, for insulation specified as part of roofing construction.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. LEED Submittals:

1. Refer to Section 01 81 13, Sustainable Design Requirements, for information regarding LEED® submission requirements.

2. The Contractor and/or Subcontractor shall submit the following information under a separate tab for LEED information.

a. A complete list materials.

b. Material costs for each material listed. Material costs shall not include installation or shipping costs.

c. Location of material manufacturer.

d. Location of material extraction/harvest.

e. Post-consumer and pre-consumer recycled content of each material.

f. Product Data for Credit MR 4.1 and Credit MR 4.2: For products having recycled content, documentation indicating percentages by weight of postconsumer and preconsumer recycled content. Include statement indicating costs for each product having recycled content.

3. The Contracting Officer reserves the right to reject products and assemblies on the basis of insufficient LEED Building submittals.

07 21 00 2 THERMAL INSULATION

C. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for each product.

1.4 QUALITY ASSURANCE

A. Surface-Burning Characteristics: As determined by testing identical products according to ASTM E 84 by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Protect insulation materials from physical damage and from deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's written instructions for handling, storing, and protecting during installation.

B. Protect foam-plastic board insulation as follows:

1. Do not expose to sunlight except to necessary extent for period of installation and concealment.

2. Protect against ignition at all times. Do not deliver foam-plastic board materials to Project site before installation time.

3. Quickly complete installation and concealment of foam-plastic board insulation in each area of construction.

PART 2 - PRODUCTS

2.1 FOAM-PLASTIC BOARD INSULATION

A. Extruded-Polystyrene Board Insulation: ASTM C 578, of type and minimum compressive strength indicated below, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E 84.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. DiversiFoam Products.

b. Dow Chemical Company (The).

c. Owens Corning.

d. Pactiv Building Products.

B. Adhesive for Bonding Insulation: Product with demonstrated capability to bond insulation securely to substrates without damaging insulation and substrates.

07 21 00 3 THERMAL INSULATION

2.2 GLASS-FIBER BLANKET INSULATION

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. CertainTeed Corporation.

2. Guardian Building Products, Inc.

3. Johns Manville.

4. Owens Corning.

B. Unfaced, Glass-Fiber Blanket Insulation: ASTM C 665, Type I; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics.

C. Reinforced-Foil-Faced, Glass-Fiber Blanket Insulation: ASTM C 665, Type III (reflective faced), Class A (faced surface with a flame-spread index of 25 or less); Category 1 (membrane is a vapor barrier), faced with foil scrim, foil-scrim kraft, or foil-scrim polyethylene.

D. Sustainability Requirements: Provide glass-fiber blanket insulation as follows:

1. Free of Formaldehyde: Insulation manufactured with 100 percent acrylic binders and no formaldehyde.

2. Low Emitting: Insulation tested according to ASTM D 5116 and shown to emit less than 0.05-ppm formaldehyde.

2.3 VAPOR RETARDERS

A. Reinforced-Polyethylene Vapor Retarders: Two outer layers of polyethylene film laminated to an inner reinforcing layer consisting of either nylon cord or polyester scrim and weighing not less than 25 lb/1000 sq. ft. (12 kg/100 sq. m), with maximum permeance rating of 0.0507 perm (2.9 ng/Pa x s x sq. m).

1. Products: Subject to compliance with requirements, provide one of the following:

a. Raven Industries Inc.; DURA-SKRIM 6WW.

b. Reef Industries, Inc.; Griffolyn T-65.

B. Vapor-Retarder Tape: Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing joints and penetrations in vapor retarder.

C. Vapor-Retarder Fasteners: Pancake-head, self-tapping steel drill screws; with fender washers.

D. Single-Component Nonsag Urethane Sealant: ASTM C 920, Type I, Grade NS, Class 25, Use NT related to exposure, and Use O related to vapor-barrier-related substrates.

E. Adhesive for Vapor Retarders: Product recommended by vapor-retarder manufacturer and has demonstrated capability to bond vapor retarders securely to substrates indicated.

07 21 00 4 THERMAL INSULATION

2.4 INSULATION FASTENERS

A. Anchor Adhesive: Product with demonstrated capability to bond insulation anchors securely to substrates indicated without damaging insulation, fasteners, and substrates.

1. Products: Subject to compliance with requirements, provide one of the following:

a. AGM Industries, Inc.; TACTOO Adhesive.

b. Gemco; Tuff Bond Hanger Adhesive.

PART 3 - EXECUTION

3.1 PREPARATION

A. Clean substrates of substances that are harmful to insulation or vapor retarders, including removing projections capable of puncturing vapor retarders, or that interfere with insulation attachment.

3.2 INSTALLATION, GENERAL

A. Comply with insulation manufacturer's written instructions applicable to products and applications indicated.

B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

C. Extend insulation to envelop entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

D. Provide sizes to fit applications indicated and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units to produce thickness indicated unless multiple layers are otherwise shown or required to make up total thickness.

3.3 INSTALLATION OF BELOW-GRADE INSULATION

A. On horizontal surfaces under slabs, loosely lay insulation units according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units.

1. If not otherwise indicated, extend insulation a minimum of 24 inches (610 mm) in from exterior walls.

3.4 INSTALLATION OF CAVITY-WALL INSULATION

A. Foam-Plastic Board Insulation: Install pads of adhesive spaced approximately 24 inches (610 mm) o.c. both ways on inside face, and as recommended by manufacturer. Fit courses of

07 21 00 5 THERMAL INSULATION

insulation between wall ties and other obstructions, with edges butted tightly in both directions.

Press units firmly against inside substrates.

1. Supplement adhesive attachment of insulation by securing boards with two-piece wall ties designed for this purpose and specified in Section 04 20 00, Unit Masonry.

2. R value of insulation R=15.

3.5 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION

A. Apply insulation units to substrates by method indicated, complying with manufacturer's written instructions. If no specific method is indicated, bond units to substrate with adhesive or use mechanical anchorage to provide permanent placement and support of units.

B. Foam-Plastic Board Insulation: Seal joints between units by applying adhesive, mastic, or sealant to edges of each unit to form a tight seal as units are shoved into place. Fill voids in completed installation with adhesive, mastic, or sealant as recommended by insulation manufacturer.

C. Glass-Fiber or Mineral-Wool Blanket Insulation: Install in cavities formed by framing members according to the following requirements:

1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members.

3. Maintain 3-inch (76-mm) clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation.

4. For metal-framed wall cavities where cavity heights exceed 96 inches (2438 mm), support unfaced blankets mechanically and support faced blankets by taping flanges of insulation to flanges of metal studs.

5. Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-retarder facings, and seal each continuous area of insulation to ensure airtight installation.

a. Exterior Walls: Set units with facing placed toward interior of construction.

3.6 INSTALLATION OF VAPOR RETARDERS

A. Place vapor retarders on side of construction indicated on Drawings. Extend vapor retarders to extremities of areas to protect from vapor transmission. Secure vapor retarders in place with adhesives or other anchorage system as indicated. Extend vapor retarders to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation.

B. Seal vertical joints in vapor retarders over framing by lapping no fewer than two studs.

1. Firmly attach vapor retarders to metal framing and solid substrates with vapor-retarder fasteners as recommended by vapor-retarder manufacturer.

07 21 00 6 THERMAL INSULATION

C. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarders.

D. Repair tears or punctures in vapor retarders immediately before concealment by other work.

Cover with vapor-retarder tape or another layer of vapor retarders.

3.7 PROTECTION

A. Protect installed insulation and vapor retarders from damage due to harmful weather exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation.

END OF SECTION 07 21 00

USACE / NAVFAC / AFCEC / NASA UFGS- 07 22 00 ( Febr uar y 2016) Change 3 - 11/ 18 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 07 22 00 ( August 2011)

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SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 22 00

ROOF AND DECK INSULATION

02/16

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 SHOP DRAWINGS

1.4 PRODUCT DATA

1.5 MANUFACTURER'S INSTRUCTIONS

1.6 QUALITY CONTROL

1.7 FM APPROVAL REQUIREMENTS

1.8 FIRE PERFORMANCE REQUIREMENTS

1.8.1 Insulation in Roof Systems

1.8.2 Thermal Barrier Requirements

1.8.3 Fire Resistance Ratings for Roofs

1.9 CERTIFICATIONS

1.10 DELIVERY, STORAGE, AND HANDLING

1.10.1 Delivery

1.10.2 Storage and Handling

1.11 ENVIRONMENTAL CONDITIONS

1.12 PROTECTION

1.12.1 Flame Heated Equipment

1.12.1.1 Fire Protection

1.12.1.2 Operational Requirements

1.12.2 Special Protection

1.12.3 Drippage of Bitumen

1.12.4 Completed Work

PART 2 PRODUCTS

2.1 INSULATION

2.1.1 Insulation Types

2.1.2 Mineral Fiber Insulation Board

2.1.3 Recycled Materials

2.1.4 Indoor Air Quality

2.1.5 Insulation Thickness

2.1.6 Tapered Roof Insulation

SECTION 07 22 00 Page 1

2.1.7 Cants and Tapered Edge Strips

2.2 COVER BOARD

2.2.1 Glass Mat Gypsum Roof Board

2.2.2 High Density Wood Fiber

2.3 BITUMENS

2.3.1 Asphalt Primer

2.3.2 Asphalt

2.3.3 Asphalt Roof Cement

2.4 SHEATHING PAPER FOR WOOD DECKS

2.5 MOISTURE CONTROL

2.5.1 Vapor Retarder

2.5.1.1 Asphalt Saturated Felt Base Sheet for Single Layer

Application

2.5.1.2 Asphalt-Coated Glass Felt

2.5.2 Ventilating Felt for [Poured] [Precast] Concrete Decks

2.5.3 Organic Roofing

2.6 FASTENERS

2.6.1 Roofing Nails for Wood Decks

2.6.2 Fasteners for Plywood Decks

2.6.3 Fasteners for Steel Decks

2.6.4 Fasteners for Poured Concrete Decks

2.7 WOOD NAILERS

PART 3 EXECUTION

3.1 EXAMINATION AND PREPARATION

3.1.1 Surface Inspection

3.1.2 Surface Preparation

3.2 INSTALLATION OF VAPOR RETARDER

3.2.1 Vapor Retarder on Poured Concrete Decks

3.2.2 Vapor Retarder on Precast Concrete Decks

3.2.3 Vapor Retarder on Wood Decks

3.2.4 Vapor Retarder on Steel Decks

3.2.5 Over Gypsum Insulating Concrete or Lightweight Insulating

Concrete

3.2.6 Over Concrete Decks and First Layer of Insulation on Steel

Decks

3.2.7 Over Structural Concrete on Non-Venting Support

3.3 INSTALLATION OF VENTILATING FELT

3.4 INSULATION INSTALLATION

3.4.1 Installation Using Asphalt

3.4.2 Installation Using Asphalt on Steel Decks

3.4.3 Installation of Protection for Asphalt Work

3.4.4 Installation Using Only Mechanical Fasteners

3.4.5 Special Precautions for Installation of Foam Insulation

3.4.5.1 Polyisocyanurate Insulation

3.4.5.2 Polystyrene Insulation

3.4.6 Cant Strips

3.4.7 Tapered Edge Strips

3.5 PROTECTION

3.5.1 Protection of Applied Insulation

3.5.2 Damaged Work and Materials

3.6 INSPECTION

-- End of Section Table of Contents --

SECTION 07 22 00 Page 2

USACE / NAVFAC / AFCEC / NASA UFGS- 07 22 00 ( Febr uar y 2016) Change 3 - 11/ 18 Pr epar i ng Act i v i t y: NAVFAC Super sedi ng UFGS- 07 22 00 ( August 2011)

UNI FI ED FACI LI TI ES GUI DE SPECI FI CATI ONS

Ref er ences ar e i n agr eement wi t h UMRL dat ed Januar y 2020

SECTION 07 22 00

ROOF AND DECK INSULATION

02/16

NOTE: Thi s gui de speci f i cat i on cover s t he r equi r ement s f or i nsul at i on mat er i al s used bel ow bui l t - up r oof i ng and si ngl e pl y r oof i ng syst ems.

Adher e t o UFC 1-300-02 Uni f i ed Faci l i t i es Gui de Speci f i cat i ons ( UFGS) For mat St andar d when edi t i ng t hi s gui de speci f i cat i on or pr epar i ng new pr oj ect speci f i cat i on sect i ons. Edi t t hi s gui de speci f i cat i on f or pr oj ect speci f i c r equi r ement s by addi ng, del et i ng, or r evi s i ng t ext . For br acket ed i t ems, choose appl i cabl e i t em( s) or i nser t appr opr i at e i nf or mat i on.

Remove i nf or mat i on and r equi r ement s not r equi r ed i n r espect i ve pr oj ect , whet her or not br acket s ar e present.

Comment s, suggest i ons and r ecommended changes f or t hi s gui de speci f i cat i on ar e wel come and shoul d be submi t t ed as a Criteria Change Request (CCR) .

I nsul at i on mat er i al s appl i es t o bot h or gani c and i nor gani c mat er i al s used f or t her mal pr ot ect i on as par t of r oof i ng assembl i es or under decks.

I n new const r uct i on, pr ovi de at l east a 1 i n 24 (40 mm per 1 M) ( 1/ 2 i nch per f oot ) s l ope i n t he st r uct ur al deck and use non- t aper ed i nsul at i on.

When i t i s c l ear l y i mpr act i cabl e t o pr ovi de t he r equi r ed sl ope or i n r er oof i ng wher e t her e i s i nsuf f i c i ent s l ope, t aper ed i nsul at i on may be used.

Al so, use t aper ed i nsul at i on f or t he const r uct i on of saddl es and cr i cket s t o pr ovi de sl ope t o dr ai ns.

I nsul at i on f or pr ef abr i cat ed met al bui l di ngs i s not i ncl uded i n t hi s sect i on. I nsul at i ng sheat hi ng, ot her mat er i al s whi ch ar e not pr i mar i l y t her mal i nsul at i ng mat er i al s, and i nsul at i ng concr et e ar e

SECTION 07 22 00 Page 3 al so not i ncl uded. Such pr oduct s ar e c l assi f i ed accor di ng t o t hei r pr i mar y use, and shoul d be speci f i ed under t he appr opr i at e sect i ons.

Spr ay- appl i ed pol yur et hane f oam r oof i nsul at i on i s speci f i ed i n Sect i on 07 57 13 SPRAYED POLYURETHANE

FOAM ( SPF)

NOTE: On t he dr awi ngs, show:

1. Ext ent and l ocat i ons of wor k.

2. Di mensi ons when space l i mi t at i ons or const r uct i on f eat ur es gover n t hi ckness of i nsul at i on materials.

3. Det ai l s at cant s, edge st r i ps, and nai l er s.

4. Locat i on and spaci ng of wood nai l er s.

NOTE: UFC 1- 200- 02 pr omot es t he use of cool r oof i ng, and i ncr eased ener gy conser vat i on t hr ough addi t i onal i nsul at i on. Cool r oof desi gn i s t o f ol l ow t he r equi r ement s of UFC 3- 110- 03 Roof i ng, Chapt er , Cool Roof s. Poor desi gn of cool r oof s have r esul t ed i n uni nt ended consequences such as condensat i on wi t hi n t he r oof assembl y. Coor di nat e cool r oof desi gn wi t h t he mechani cal engi neer on t he pr oj ect t o pr ovi de appr opr i at e r oof assembl y, i nsul at i on t hi ckness, sur f ace f i ni shes appr opr i at e t o t he geogr aphi c l ocat i on and humi di t y r equi r ement s of t he pr oj ect . Ver i f y dewpoi nt and desi gn t he r oof assembl y accor di ngl y.

Mechani cal l y f ast ened si ngl e pl y r oof syst ems ar e t o compl y wi t h t he r equi r ement s f or such syst ems i n UFC 3- 110- 03 Roof i ng. Condensat i on on t he under si de of mechani cal l y f ast ened syst ems can r esul t i n i ce bui l dup i n wi nt er , mol d gr owt h, moi st ur e damage, and pr emat ur e r oof r epl acement . See Appendi x B of UFC 3- 110- 03 f or mor e i nf or mat i on.

PART 1 GENERAL

1.1 REFERENCES

NOTE: Thi s par agr aph i s used t o l i s t t he publ i cat i ons c i t ed i n t he t ext of t he gui de speci f i cat i on. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y and l i s t ed i n t hi s par agr aph by or gani zat i on, desi gnat i on, dat e, and t i t l e.

Use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e

SECTION 07 22 00 Page 4 when you add a Ref er ence I dent i f i er ( RI D) out si de of t he Sect i on' s Ref er ence Ar t i c l e t o aut omat i cal l y pl ace t he r ef er ence i n t he Ref er ence Ar t i c l e. Al so use t he Ref er ence Wi zar d' s Check Ref er ence f eat ur e t o updat e t he i ssue dat es.

Ref er ences not used i n t he t ext wi l l aut omat i cal l y be del et ed f r om t hi s sect i on of t he pr oj ect speci f i cat i on when you choose t o r econci l e r ef er ences i n t he publ i sh pr i nt pr ocess.

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM C208 (2012; R 2017; E 2017; E 2019) Standard Specification for Cellulosic Fiber Insulating Board

ASTM C552 (2017; E 2018) Standard Specification for Cellular Glass Thermal Insulation

ASTM C578 (2018) Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

ASTM C726 (2017) Standard Specification for Mineral Wool Roof Insulation Board

ASTM C728 (2017a) Standard Specification for Perlite Thermal Insulation Board

ASTM C1177/C1177M (2017) Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing

ASTM C1289 (2018a) Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board

ASTM D41/D41M (2011; R 2016) Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing

ASTM D226/D226M (2017) Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing

ASTM D312 (2000; R 2006) Standard Specification for Asphalt Used in Roofing

ASTM D2178/D2178M (2015a) Asphalt Glass Felt Used in Roofing and Waterproofing

ASTM D4263 (1983; R 2018) Standard Test Method for Indicating Moisture in Concrete by the Plastic Sheet Method

SECTION 07 22 00 Page 5

ASTM D4586/D4586M (2007; E 2012; R 2012) Asphalt Roof Cement, Asbestos-Free

ASTM D4601/D4601M (2004; R 2012) Asphalt-Coated Glass Fiber Base Sheet Used in Roofing

ASTM D4897/D4897M (2016) Standard Specification for Asphalt-Coated Glass-Fiber Venting Base Sheet Used in Roofing

ASTM E84 (2018a) Standard Test Method for Surface Burning Characteristics of Building Materials

FM GLOBAL (FM)

FM 4450 (1989) Approval Standard for Class 1 Insulated Steel Deck Roofs

FM 4470 (2010) 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

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2018) International Building Code

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 1 (2018) Fire Code

SCIENTIFIC CERTIFICATION SYSTEMS (SCS)

SCS SCS Global Services (SCS) Indoor Advantage

UNDERWRITERS LABORATORIES (UL)

UL 1256 (2002; Reprint Jul 2013) Fire Test of Roof Deck Constructions

UL 2818 (2013) GREENGUARD Certification Program For Chemical Emissions For Building Materials, Finishes And Furnishings

1.2 SUBMITTALS

NOTE: Revi ew Submi t t al Descr i pt i on ( SD) def i ni t i ons i n Sect i on 01 33 00 SUBMI TTAL PROCEDURES and edi t t he f ol l owi ng l i s t t o r ef l ect onl y t he submi t t al s r equi r ed f or t he pr oj ect .

The Gui de Speci f i cat i on t echni cal edi t or s have desi gnat ed t hose i t ems t hat r equi r e Gover nment

SECTION 07 22 00 Page 6 appr oval , due t o t hei r compl exi t y or cr i t i cal i t y, wi t h a " G. " Gener al l y, ot her submi t t al i t ems can be r evi ewed by t he Cont r act or ' s Qual i t y Cont r ol Syst em. Onl y add a " G" t o an i t em, i f t he submi t t al i s suf f i c i ent l y i mpor t ant or compl ex i n cont ext of t he pr oj ect .

For submi t t al s r equi r i ng Gover nment appr oval on Ar my pr oj ect s, a code of up t o t hr ee char act er s wi t hi n t he submi t t al t ags may be used f ol l owi ng t he " G" desi gnat i on t o i ndi cat e t he appr ovi ng aut hor i t y.

Codes f or Ar my pr oj ect s usi ng t he Resi dent Management Syst em ( RMS) ar e: " AE" f or Ar chi t ect - Engi neer ; " DO" f or Di st r i ct Of f i ce ( Engi neer i ng Di v i s i on or ot her or gani zat i on i n t he Di st r i ct Of f i ce) ; " AO" f or Ar ea Of f i ce; " RO" f or Resi dent Of f i ce; and " PO" f or Pr oj ect Of f i ce. Codes f ol l owi ng t he " G" t ypi cal l y ar e not used f or Navy, Ai r For ce, and NASA pr oj ect s.

The " S" f ol l owi ng a submi t t al i t em i ndi cat es t hat t he submi t t al i s r equi r ed f or t he Sust ai nabi l i t y eNot ebook t o f ul f i l l f eder al l y mandat ed sust ai nabl e r equi r ement s i n accor dance wi t h Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG. Locat e t he " S" submi t t al under t he SD number t hat best descr i bes t he submi t t al i t em.

Choose t he f i r st br acket ed i t em f or Navy, Ai r For ce and NASA pr oj ect s, or choose t he second br acket ed i t em f or Ar my pr oj ect s.

NOTE: I f sust ai nabl e door har dwar e i s avai l abl e, choose br acket ed opt i on.

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are [for Contractor Quality Control approval.][for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government.] Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Insulation Board Layout and Attachment; G[, [_____]]

Verification of Existing Conditions ; G[, [_____]]

SD-03 Product Data

Insulation ; G[, [_____]]

Cover Board ; G[, [_____]]

SECTION 07 22 00 Page 7

Fasteners ; G[, [_____]]

Sheathing Paper ; G[, [_____]]

Moisture Control ; G[, [_____]]

[ Asphalt Products; G[, [_____]]

] Recycled Content For Insulation ; S

SD-06 Test Reports

Flame Spread Rating ; G[, [_____]]

SD-07 Certificates

Installer Qualifications ; G[, [_____]]

Certificates Of Compliance For Felt Materials ; G[, [_____]]

Indoor Air Quality For Insulation ; S

SD-08 Manufacturer's Instructions

Nails and Fasteners ; G[, [_____]]

Roof Insulation ; G[, [_____]]

1.3 SHOP DRAWINGS

NOTE: Speci f y shop dr awi ngs f or wood nai l er s when nai l er s ar e r equi r ed f or secur i ng i nsul at i on on r oof s s l oped 1 i n 24 ( 40 mm per 1 M) ( 1/ 2 i nch per foot) or mor e.

NOTE: I ncl ude r equi r ement f or backnai l i ng of f el t s when speci f i ed f or bui l t - up r oof i ng.

Submit insulation board layout and attachment indicating methods of attachment and spacing, transitions, tapered components, thicknesses of materials, and closure and termination conditions. Show locations of ridges, valleys, crickets, interface with, and slope to, roof drains.

Base shop drawings on verified field measurements and include verification of existing conditions .[ Show wood nailers.][Show location and spacing of wood nailers required for securing of insulation [and backnailing of roofing felts]].

1.4 PRODUCT DATA

Include data for material descriptions, recommendations for product shelf life, requirements for cover board or coatings, and precautions for flammability and toxicity. Include data to verify compatibility of sealants with insulation.

1.5 MANUFACTURER'S INSTRUCTIONS

Include field of roof and perimeter attachment requirements.

SECTION 07 22 00 Page 8

Provide a complete description of installation sequencing for each phase of the roofing system. Include weatherproofing procedures.

1.6 QUALITY CONTROL

Provide certification of installer qualifications from the insulation manufacturer confirming the specific installer has the required qualifications for installing the specific roof insulation system(s) indicated.

Provide certificates of compliance for felt materials .

[ 1.7 FM APPROVAL REQUIREMENTS

NOTE: FM Appr oval Gui de i ncl udes r equi r ement s f or f ast ener s f or 1- 60, 1- 90, and 1- 120 cl assi f i cat i ons f or r esi st ance t o wi nd upl i f t pr essur es. Ref er t o UFC 3- 301- 01 St r uct ur al Engi neer i ng f or wi nd l oads and speci f y FM appr oval accor di ngl y. Not e, FM appr oval number s do not cor r espond t o wi nd speeds.

Ref er t o FM Dat a Sheet s f or wi nd desi gn.

Provide fastening patterns in accordance with [FM 1-60][FM 1-90][FM 1-120] for insulation on steel decks.

] 1.8 FIRE PERFORMANCE REQUIREMENTS

1.8.1 Insulation in Roof Systems

NOTE: I ncl ude t hi s r equi r ement when i nsul at i on i s i nst al l ed over pl ywood, wood pl anks ot her t han nominal 50 mm 2 i nch t hi ck, t ongue- and- gr oove t ype, or st eel deck.

NOTE: Coor di nat e f i r e per f or mance i n i nsul at ed r oof syst ems. At a mi ni mum, compl y wi t h I CC I BC and UL1256. I f t he r oof assembl y r equi r es FM appr oval , choose t he br acket ed opt i ons.

NOTE: Ther mal bar r i er s ar e r equi r ed f or near l y al l r oof i ng appl i cat i ons wher e f oam pl ast i cs ar e pr esent . Conf i r m speci f i c pr oj ect r equi r ement s wi t h I CC I BC. For r oof i ng appl i cat i ons, smoke devel opment r at i ng does not appl y. The el i mi nat i on of t he t her mal bar r i er i s al l owed onl y under ver y speci f i c condi t i ons t her ef or e do not el i mi nat e unl ess speci f i cal l y ver i f i ed wi t h appl i cabl e l i f e saf et y codes.

Comply with the requirements of ICC IBC [or UL 1256 ] [or FM 4450 ][or FM 4470 ]. Roof insulation to have a flame spread rating of 75 or less when tested in accordance with ASTM E84. Additional documentation of compliance with flame spread rating is not required when insulation of the type used for this project as part of the specific roof assembly is listed

SECTION 07 22 00 Page 9 and labeled as FM Class 1 approved. [Only roof assemblies that pass FM 4450 may be used.]

1.8.2 Thermal Barrier Requirements

Separate [polyurethane] [or] [polystyrene] insulation from a [combustible] [steel] deck with a thermal barrier of glass mat gypsum roof board or other approved barrier material in accordance with the requirements of the ICC IBC [or FM 4450 ] [or FM 4470 ][or UL 1256 ]. [Only roof assemblies that pass FM 4450 may be used.]

NOTE: Speci f y i nsul at ed r oof assembl i es i n accor dance wi t h UFC 1- 200- 01 Gener al Bui l di ng Requi r ement s, Fi r e and Smoke Pr ot ect i on sect i on, and UFC 3- 600- 01 " Fi r e Pr ot ect i on Engi neer i ng f or Faci l i t i es" . Wher e r equi r ement s conf l i c t bet ween UFCs and I BC, UFC 3- 600- 01 t akes pr ecedence; edi t t he f ol l owi ng sect i on accor di ngl y.

1.8.3 Fire Resistance Ratings for Roofs

Provide in accordance with ICC IBC Chapter 7 and Table 721.1(3) Min [Fire and Smoke] Protection For Floor and Roof Systems.

1.9 CERTIFICATIONS

Provide products certified to meet indoor air quality requirements by UL 2818 (Greenguard) Gold, SCS Global Services Indoor Advantage Gold or provide certification by other third-party programs. Provide current product certification documentation from certification body.

1.10 DELIVERY, STORAGE, AND HANDLING

1.10.1 Delivery

Deliver materials to the project site in manufacturer's unopened and undamaged standard commercial containers bearing the following legible information:

a. Name of manufacturer

b. Brand designation

c. Specification number, type, and class, as applicable, where materials are covered by a referenced specification

[ d. Asphalt flashpoint (FP), equiviscous temperature (EVT), and finished blowing temperature (FBT).

] Deliver materials in sufficient quantity to allow continuity of the work.

1.10.2 Storage and Handling

Store and handle materials in accordance with manufacturer's printed instructions. Protect from damage, exposure to open flame or other ignition sources, wetting, condensation, and moisture absorption. Keep materials wrapped and separated from off-gassing materials (such as drying

SECTION 07 22 00 Page 10 paints and adhesives). Do not use materials that have visible moisture or biological growth. Store in an enclosed building or trailer that provides a dry, adequately ventilated environment. [Store felt rolls on ends. For the 24 hours immediately before application of felts, store felts in an area maintained at a temperature no lower than 10 degrees C 50 degrees F above grade and having ventilation on all sides.] Replace damaged material with new material.

1.11 ENVIRONMENTAL CONDITIONS

Do not install roof insulation during inclement weather or when air temperature is below 4 degrees C 40 degrees F and interior humidity is 45 percent or greater, or when there is visible ice, frost, or moisture on the roof deck.

1.12 PROTECTION

NOTE: Wher e bui l t - up r oof i ng i s appl i ed over i nsul at i on, del et e par agr aphs FLAME HEATED EQUI PMENT t hr ough DRI PPAGE OF BI TUMEN and speci f y r equi r ement encl osed i n br acket s i n par agr aph PROTECTI ON OF PROPERTY. Del et e par agr aphs FLAME HEATED EQUI PMENT, PROTECTI VE COVERI NGS, SPECI AL PROTECTI ON, AND

DRI PPAGE OF BI TUMEN when r oof i ng syst em or i nsul at i on does not r equi r e hot asphal t or t or ches f or appl i cat i on.

[ Provide protection as specified in [_____].

][ 1.12.1 Flame Heated Equipment

1.12.1.1 Fire Protection

Locate melt kettles no closer than 8 meters 25 feet from buildings or combustible materials. Provide and maintain two approved 4-A:40-B:C fire extinguishers within 8 meters 25 feet of each operating kettle. Fire extinguishers, operations and locations must comply with NFPA 1 Section Tar Kettles. Equip asphalt (tar) kettles with tight fitting lids.

1.12.1.2 Operational Requirements

Equip kettles with automatic thermostatic control capable of maintaining asphalt temperature. Calibrate and maintain controls in working order for the duration of the work. Equip kettles with means of agitation and ensure they are operating as necessary to produce a controlled uniform temperature throughout kettle contents to prevent spot heating. Do not heat contents above flash point. Do not place flame heated equipment on the roof.

][ 1.12.2 Special Protection

Provide special protection as approved by the insulation manufacturer.

][ 1.12.3 Drippage of Bitumen

Seal joints in and at edges of deck as necessary to prevent drippage of asphalt into the building or onto adjacent surfaces.

SECTION 07 22 00 Page 11

] 1.12.4 Completed Work

Cover completed work with cover board for the duration of construction.

Avoid traffic on completed work particularly when ambient temperature is above 27 degrees C 80 degrees F . Replace crushed or damaged insulation prior to roof surface installation.

PART 2 PRODUCTS

NOTE: Speci f y sust ai nabl e mat er i al s i n accor dance wi t h UFC 1- 200- 02 HI GH PERFORMANCE AND SUSTAI NABLE BUI LDI NG REQUI REMENTS. Reduce t he envi r onment al i mpact of mat er i al s by speci f y i ng pr oduct s t hat have a l esser or r educed ef f ect on human heal t h and t he envi r onment such as l ow emi t t i ng mat er i al s and mat er i al s wi t h hi gh r ecycl ed cont ent . Consi der pr oduct l i f e cycl e and t r avel di st ances when compar ed wi t h compet i ng pr oduct s or ser vi ces ser vi ng t he same pur pose.

2.1 INSULATION

2.1.1 Insulation Types

NOTE: Speci f y al l t ypes of i nsul at i on l i s t ed as Cont r act or opt i ons, except wher e met hod of const r uct i on or speci al r equi r ement s pr ohi bi t use.

Ther mal bar r i er of gl ass mat gypsum r oof boar d or sui t abl e r oof i nsul at i on boar d must be i nst al l ed di r ect l y on r oof deck when pol yst yr ene boar d wi l l be appl i ed over decks const r uct ed of mat er i al s ot her t han pour ed- gypsum; pour ed- concr et e; nomi nal 50 mm 2 inch t hi ck, t ongue- and- gr oove wood pl ank or pr ecast r oof deck panel s; or pl anks appr oved by FM as noncombust i bl e r oof deck const r uct i on.

For NAVFAC SE pr oj ect s, do not speci f y mi ner al f i ber , gl ass f i ber or cel l ul ar gl ass boar ds.

Roof i nsul at i on shoul d be speci f i ed by t her mal r esi st ance ( R- val ue) necessar y t o obt ai n r equi r ed over al l t her mal t r ansmi t t ance ( U- val ue) needed t o sat i sf y desi gn cr i t er i a f or par t i cul ar t ype of f aci l i t y . Thi ckness of i nsul at i on wi l l var y wi t h t ype of mat er i al f ur ni shed i n or der t o pr ovi de speci f i ed R- val ue. When t hi ckness of i nsul at i ng mat er i al i s gover ned by space l i mi t at i ons or const r uct i on f eat ur es, R- val ue and cor r espondi ng t hi ckness shoul d be coor di nat ed wi t h space avai l abl e. Pr ovi de i nsul at i on of suf f i c i ent t hi ckness t o ensur e t hat t emper at ur e of vapor r et ar der sur f ace, when used, wi l l be above dewpoi nt . R- val ue f or i nsul at i on shoul d never be l ess t han R- val ue used i n desi gn of heat i ng, vent i l at i on and ai r condi t i oni ng syst ems.

SECTION 07…