54218106-Spec-Vol 2_FinalCD_013120.pdf

Specifications

Coatesville VA Medical Center

1400 Blackhorse Hill Road | Coatesville, PA 19320

Renovate Building 4A & B Floors

Outpatient Mental Health Clinic

Building 4

VA Contract No. 36C24418C0144

Station Project No. 542-18-106

Bancroft-AE Project No. 18-102

Final Construction Documents Submission

Volume 2 of 4

Divisions 07 - 10

January 31, 2020

DIVISION 07

Thermal and Moisture Protection

Coatesville, Pennsylvania 19320

Renovate Building 4 A & B Floors Outpatient Mental Health Clinic

Bancroft Architects + Engineers

02-01-16

Contract No. 36C24418C0144

Station Project No. 542-18-106

Bancroft-AE Project No. 18-102 07 01 50.19-1 01-31-2020

SECTION 07 01 50.19

PREPARATION FOR RE-ROOFING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Roofing membrane and selective roofing system component removal for new roof membrane installation, patching, and repair.

2. Existing roofing membrane preparation for new roofing installation.

B. Existing Roofing System: EPDM System components include:

1. Roofing membrane.

2. Cover board.

3. Roof insulation.

4. Vapor retarder.

5. Substrate board.

1.2 RELATED REQUIREMENTS

A. Asbestos Removal: Section 02 82 13.21, ASBESTOS ROOFING ABATEMENT.

B. Replacement Roof Sheathing: Section 06 10 00, ROUGH CARPENTRY.

C. Roofing System Patching and Repair: Section 07 53 23, ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. American National Standards Institute/Single-Ply Roofing Institute

(ANSI/SPRI):

1. FX-1-01(R2006) Standard Field Test Procedure for Determining the

Withdrawal Resistance of Roofing Fasteners.

C. American Society for Nondestructive Testing (ASNT):

1. SNT-TC-1A - Personnel Qualification and Certification for

Nondestructive Testing.

D. ASTM International (ASTM):

1. C208-12 - Cellulosic Fiber Insulating Board.

2. C578-15 - Rigid, Cellular Polystyrene Thermal Insulation.

3. C728-15 - Perlite Thermal Insulation Board.

4. C1177/C1177M-13 - Glass Mat Gypsum Substrate for Use as Sheathing.

5. C1153-97(2003)e1 - Location of Wet Insulation in Roofing Systems

Using Infrared Imaging.

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6. C1278/C1278M-07a(2015) - Fiber-Reinforced Gypsum Panel.

7. D4263-83(2012) - Indicating Moisture in Concrete by the Plastic

Sheet Method.

E. U.S. Department of Commerce National Institute of Standards and

Technology (NIST):

1. DOC PS 1-09 - Structural Plywood.

2. DOC PS 2-04 - Performance Standard for Wood-Based Structural-Use

Panels.

1.4 PREINSTALLATION MEETINGS

A. Conduct preinstallation meeting minimum 30 days before beginning Work of this section.

1. Required Participants:

a. Contracting Officer's Representative (COR).

b. Contractor.

c. Installer.

d. Manufacturer's field representative.

e. Other installers responsible for adjacent and intersecting work, including mechanical and electrical equipment installers.

2. Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.

a. Removal and installation schedule.

b. Removal and installation sequence.

c. Preparatory work.

d. Protection before, during, and after installation.

e. Removal and installation.

f. Temporary roofing including daily terminations.

g. Transitions and connections to other work.

h. Inspecting and testing.

i. Other items affecting successful completion.

3. Document and distribute meeting minutes to participants to record decisions affecting installation.

1.5 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Submittal Drawings:

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1. Show size, configuration, and installation details.

C. Manufacturer's Literature and Data:

1. Description of each product.

2. Description of temporary roof system and components.

3. List of patching materials.

4. Recover board fastening requirements.

5. Temporary roofing installation instructions, removal instructions, and preparation instructions to receive new roofing.

6. Existing roofing warrantor's instructions.

D. Photographs: Document existing conditions potentially affected by roofing operations before work begins.

E. Field Inspection Reports:

1. Certify warrantor inspected completed roofing and existing warranty remains in effect.

1.6 QUALITY ASSURANCE

A. Installer Qualifications:

1. Approved by existing roofing system warrantor when work affects existing roofing system under warranty.

1.7 FIELD CONDITIONS

A. Building Occupancy: Perform work to minimize disruption to normal building operations.

1. Provide notice minimum 72 hours before beginning activities affecting normal building operations.

B. Existing Roofing Available Information:

1. The following are available for Contractor reference:

2. Examine available information before beginning work of this section.

C. Weather Limitations: Proceed with reroofing preparation only during dry weather conditions as specified for new roofing installation in Section

Section 07 53 23, ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING.

1. Remove only as much roofing in one day as can be made watertight in same day.

D. Hazardous materials are not expected in existing roofing system.

1. Do not disturb suspected hazardous materials. When discovered, notify COR.

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Contract No. 36C24418C0144

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1.8 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

B. Existing Warranties: Perform work to maintain existing roofing warranty in effect.

1. Notify warrantor before beginning, and upon completion of reroofing.

2. Obtain warrantor's instructions for maintaining existing warranty.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Patching Materials: Match existing roofing system materials.

B. Plywood Sheathing: See Section 06 10 00, ROUGH CARPENTRY.

C. Temporary Protection Materials:

1. Expanded Polystyrene (EPS) Insulation: ASTM C578.

2. Plywood: NIST DOC PS 1, Grade CD Exposure 1.

3. Oriented Strand Board (OSB): NIST DOC PS 2, Exposure 1.

D. Temporary Roofing System Materials: Contractor's option.

E. Recover Board: One of the following:

1. Match existing adjacent roofing.

F. Fasteners: Type and size required by roof membrane manufacturer to resist wind uplift.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Infrared Roof Moisture Survey: Ground-based, walk-over type performed according to ASTM C1153.

1. Record the entire survey on DVD and provide one copy to COR with report.

2. Include in report thermograms of suspect areas and corresponding daytime photos of same locations.

3. Conduct inspection by NDT test technician certified to at least

Level 2 in Thermal/Infrared test method according to ASNT SNT-TC-1A.

4. Mark out roof areas determined to be wet to indicate minimum areas to be removed.

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3.2 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing roofing system indicated to remain.

1. Cover roof membrane with temporary protection materials without impeding drainage.

2. Limit traffic and material storage to protected areas.

3. Maintain temporary protection until replacement roofing is completed.

C. Protect existing construction and completed work from damage.

D. Protect landscaping from damage.

E. Maintain access to existing walkways and adjacent occupied facilities.

F. Coordinate use of rooftop fresh air intakes with Contracting Officer's

Representative to minimize effect on indoor air quality.

G. Ensure temporary protection materials are available for immediate use in case of unexpected rain.

H. Ensure roof drainage remains functional.

1. Keep drainage systems clear of debris.

2. Prevent water from entering building and existing roofing system.

I. Coordinate rooftop utilities remaining active during roofing work with

Contacting Officer's Representative.

3.3 RE-ROOFING PREPARATION - GENERAL

A. Notify COR of planned operations, daily.

1. Identify location and extent of roofing removal.

2. Request authorization to proceed.

3.4 OVERBURDEN REMOVAL (NOT USED)

3.5 COMPLETE ROOFING SYSTEM REMOVAL (NOT USED)

3.6 PARTIAL ROOFING SYSTEM REMOVAL (NOT USED)

3.7 ROOFING MEMBRANE AND SELECTIVE ROOFING SYSTEM COMPONENT REMOVAL

A. Remove existing roofing membrane, only, in locations and to extent indicated on drawings.

B. Visually inspect cover board, roof insulation, vapor retarder, and substrate board for moisture immediately after roof membrane removal.

1. Coordinate with COR to observe inspections.

2. Identify wet roofing system components required to be removed.

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Contract No. 36C24418C0144

Station Project No. 542-18-106

Bancroft-AE Project No. 18-102 07 01 50.19-6 01-31-2020

3. Mark roofing system removal locations and extents.

C. Remove wet roofing system components.

1. Remove or cut-off roofing system fasteners when removals expose structural roof deck.

D. Patch selective roofing system removals immediately after inspection and repair.

E. Install patching materials to match existing roofing system.

F. Patch roofing membrane to maintain building watertight, unless new roofing membrane is installed same day as removal and repair.

3.8 DECK PREPARATION

A. Inspect structural roof deck after roofing system removal.

B. Concrete Roof Decks:

1. Visually confirm concrete roof deck is dry.

2. Perform moisture test according to ASTM D4263 each day for each separate roof area.

a. Proceed with roofing work only when moisture is not observed.

C. Plywood Roof Decks:

1. Visually inspect structural roof deck installation and fasteners.

a. Notify Contracting Officer's Representative of unsuitable conditions and inadequate fastenings potentially affecting roof system performance.

2. Secure roof deck with additional fastenings as determined by

Contracting Officer's Representative.

3. Replace roof deck as indicated on drawings and determined by

Contracting Officer's Representative.

a. Replacement Roof Deck: See Section 06 10 00, ROUGH CARPENTRY.

3.9 TEMPORARY ROOFING

A. Install temporary roofing to maintain building watertight.

B. Remove temporary roofing before installing new roofing.

3.10 EXISTING MEMBRANE PREPARATION FOR NEW ROOFING (NOT USED)

3.11 PENETRATION FLASHING REMOVAL

A. Expose penetration flashings to permit removal.

B. Remove existing penetration flashings.

C. Install exterior fire-retardant-treated plywood sheathing.

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3.12 RECOVER BOARD INSTALLATION

A. Install recover boards over existing substrate with butted joints.

Stagger end joints in adjacent rows.

B. Fasten recover boards to resist wind-uplift.

1. Fastening Requirements: See Section 07 53 23, ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING.

2. Uplift Resistance: Base on pull out resistance determined by specified field testing.

3.13 FIELD QUALITY CONTROL

A. Field Tests: Performed by testing laboratory specified in Section

01 45 29, TESTING LABORATORY SERVICES.

1. Fastener Pull Out Tests: ANSI/SPRI FX-1.

B. Existing Roofing System Warrantor Services:

1. Inspect reroofing preparation and roofing installation to verify compliance with existing warranty conditions.

2. Submit reports of field inspections, and supplemental instructions issued during inspections.

3.14 DISPOSAL

A. Collect waste materials in containers.

B. Remove waste materials from project site, regularly, to prevent accumulation.

C. Legally dispose of waste materials.

- - E N D - -

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SECTION 07 21 13

THERMAL INSULATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes:

1. Thermal insulation.

a. Board insulation at foundation perimeter.

b. Batt or blanket insulation at exterior framed roof rafters and furred walls.

c. Board insulation at floor assemblies above conditioned spaces.

d. Board insulation at masonry cavity walls.

2. Acoustical insulation.

a. Batt and blanket insulation at interior framed partitions.

1.2 RELATED REQUIREMENTS

Adhesives VOC Limits: Section 01 81 13, SUSTAINABLE CONSTRUCTION

REQUIREMENTS.

Safing Insulation: Section 07 84 00, FIRESTOPPING.

Sprayed insulation: Section 07 21 29, SPRAYED INSULATION.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this Section.

B. ASTM International (ASTM):

1. C516-08(2013)e1 - Vermiculite Loose Fill Thermal Insulation.

2. C549-06(2012) - Perlite Loose Fill Insulation.

3. C552-15 - Cellular Glass Thermal Insulation.

4. C553-13 - Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications.

5. C578-15 - Rigid, Cellular Polystyrene Thermal Insulation.

6. C591-15 - Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal

Insulation.

7. C612-14 - Mineral Fiber Block and Board Thermal Insulation.

8. C665-12 - Mineral-Fiber Blanket Thermal Insulation for Light Frame

Construction and Manufactured Housing.

9. C728-15 - Perlite Thermal Insulation Board.

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10. C954-15 - Steel Drill Screws for the Application of Gypsum Panel

Products or Metal Plaster Base to Steel Studs From 0.033 (0.84 mm) inch to 0.112 inch (2.84 mm) in thickness.

11. C1002-14 - Steel Self-Piercing Tapping Screws for Application of

Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel

Studs.

12. D312/D312M-15 - Asphalt Used in Roofing.

13. E84-15a - Surface Burning Characteristics of Building Materials.

14. F1667-15 - Driven Fasteners: Nails, Spikes, and Staples.

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Description of each product.

2. Adhesive indicating manufacturer recommendation for each application.

C. Sustainable Construction Submittals:

1. Recycled Content: Identify post-consumer and pre-consumer recycled content percentage by weight.

2. Low Pollutant-Emitting Materials:

a. Show volatile organic compound types and quantities.

1.5 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.6 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight facility.

B. Protect products from damage during handling and construction operations.

C. Protect foam plastic insulation from UV exposure.

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1.7 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

PART 2 - PRODUCTS

2.1 INSULATION - GENERAL

A. Insulation Thickness:

1. Provide thickness required by R-value shown on drawings.

2. Provide thickness indicated when R-value is not shown on drawings.

B. Insulation Types:

1. Provide one insulation type for each application.

C. Sustainable Construction Requirements:

1. Insulation Recycled Content:

a. Polyisocyanurate/polyurethane rigid foam: 9 percent recovered material.

b. Polyisocyanurate/polyurethane foam-in-place: 5 percent recovered material.

c. Glass fiber reinforced: 6 percent recovered material.

d. Phenolic rigid foam: 5 percent recovered material.

e. Rock wool material: 75 percent recovered material.

2. Low Pollutant-Emitting Materials: Comply with VOC limits specified in Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS for the following products:

a. Non-Flooring Adhesives and Sealants.

2.2 THERMAL INSULATION

A. Perimeter Foundation Insulation In Contact with Soil:

1. Polystyrene Board: ASTM C578, Type IV, V, VI, or VII.

B. Inside Face of Exterior Wall Insulation:

1. Mineral Fiber Board: ASTM C612, Type IB or II.

2. Perlite Board: ASTM C728.

3. Cellular Glass Block: ASTM C552, Type I.

C. Masonry Cavity Wall Insulation:

1. Extruded Polystyrene Board: ASTM C578, Type X.

2.3 ACOUSTICAL INSULATION

A. Semi Rigid, Batts and Blankets:

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1. Widths and lengths to fit tight against framing.

2. Mineral Fiber boards: ASTM C553, Type II, flexible, or Type III, semi rigid unfaced.

a. Density: nominal 4.5 pound.

3. Mineral Fiber Batt or Blankets: ASTM C665 unfaced.

4. Maximum Surface Burning Characteristics: ASTM E84.

a. Flame Spread Rating: 25.

b. Smoke Developed Rating: 450.

2.4 ACCESSORIES

A. Fasteners:

1. Staples or Nails: ASTM F1667, zinc-coated, size and type to suit application.

2. Screws: ASTM C954 or ASTM C1002, size and length to suit application with washer minimum 50 mm (2 inches) diameter.

3. Impaling Pins: Steel pins with head minimum 50 mm (2 inches) diameter.

a. Length: As required to extend beyond insulation and retain cap washer when washer is placed on pin.

b. Adhesive: Type recommended by manufacturer to suit application.

B. Insulation Adhesive:

1. Nonflammable type recommended by insulation manufacturer to suit application and compatible with adjacent materials.

C. Tape:

1. Pressure sensitive adhesive on one face.

PART 3 - EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing construction and completed work from damage.

C. Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

3.2 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions and approved submittal drawings.

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1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative (COR) consideration.

B. Install insulation with vapor barrier facing the heated side, unless indicated otherwise.

C. Install board insulation with joints close and flush, in regular courses, and with end joints staggered.

D. Install batt and blanket insulation with joints tight. Fill framing voids completely. Seal penetrations, terminations, facing joints, facing cuts, tears, and unlapped joints with tape.

E. Fit insulation tight against adjoining construction and penetrations, unless indicated otherwise.

3.3 THERMAL INSULATION

A. Perimeter Insulation In Contact with Soil:

1. Vertical insulation:

a. Fill joints of insulation with same material used for bonding.

b. Bond polystyrene board to surfaces with adhesive.

B. Exterior Framing or Furring Insulation:

1. General:

a. Open voids are not acceptable.

b. Pack insulation around door frames and windows, in building expansion joints, door soffits, and other voids.

c. Pack behind outlets, around pipes, ducts, and services encased in walls.

d. Hold insulation in place with pressure sensitive tape.

e. Lap facing flanges together over framing for continuous surface.

Seal penetrations through insulation and facings.

2. Roof Rafters and Floor Joists:

a. Friction fit insulation between framing to provide minimum 50 mm

(2 inch) air space between insulation and roof sheathing and subfloor.

3. Ceilings and Soffits:

a. Wood Framing:

1) Fasten blanket insulation between wood framing and joists with nails or staples through flanged edges of insulation.

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2) Space fastenings maximum 150 mm (6 inches) on center.

b. Metal Framing:

1) Fasten insulation between metal framing with pressure sensitive tape continuous along flanged edges.

2) At metal framing and ceilings suspension systems, install insulation above suspended ceilings and metal framing at right angles to main runners and framing.

3) Tape insulation tightly together without gaps. Cover metal framing members with insulation.

C. Inside Face of Exterior Wall Insulation:

1. Location: On interior face of solid masonry and concrete walls, beams, beam soffits, underside of floors, and to face of studs to support interior wall finish where indicated.

2. Bond insulation to solid vertical surfaces with adhesive. Fill joints with adhesive cement.

D. Fasten board insulation to face of studs with screws, nails or staples.

Space fastenings maximum 300 mm (12 inches) on center. Stagger fasteners at board joints. Install fasteners at each corner.Floor

Assemblies Above Unconditioned Spaces:

1. Use impaling pins for attach insulation to underside of horizontal surfaces and to secure in place on top of horizontal surfaces. Space fastenings as required to hold insulation in place and prevent sagging.

E. Masonry Cavity Wall Insulation:

1. Install insulation on exterior faces of concrete and masonry inner wythes of cavity walls.

2. Bond polystyrene board to surfaces with adhesive.

3. Fill insulation joints with same material used for bonding.

4.

3.4 ACOUSTICAL INSULATION

A. General:

1. Install insulation without voids.

2. Pack insulation around door frames and windows, in building expansion joints, door soffits, and other voids.

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3. Pack behind outlets, around pipes, ducts, and services encased in walls.

4. Hold insulation in place with pressure sensitive tape.

5. Lap facer flanges together over framing for continuous surface.

Seal all penetrations through the insulation and facers.

6. Do not compress insulation below required thickness except where embedded items prevent required thickness.

B. Semi Rigid, Batts and Blankets:

1. When insulation is not full thickness of cavity, adhere insulation to one side of cavity, maintaining continuity of insulation and covering penetrations or embedments.

a. Metal Framing:

1) Fasten insulation between metal framing with pressure sensitive tape continuous along flanged edges.

2) At metal framing or ceilings suspension systems, install blanket insulation above suspended ceilings or metal framing at right angles to the main runners or framing.

3) Tape insulation tightly together so no gaps occur and metal framing members are covered by insulation.

3.5 CLEANING

A. Remove excess adhesive before adhesive sets.

3.6 PROTECTION

A. Protect insulation from construction operations.

B. Repair damage.

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SECTION 07 21 29

SPRAYED INSULATION

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes:

1. Spray applied polyurethane foam thermal insulation.

a. Sprayed insulation at exterior furred walls.

b. Primer for use on glossy substrates for improved adhesion of sprayed insulation products.

1.2 RELATED REQUIREMENTS

Adhesives VOC Limits: Section 01 81 13, SUSTAINABLE CONSTRUCTION

REQUIREMENTS.

Thermal Insulation: Section 07 21 13, THERMAL INSULATION.

Safing Insulation: Section 07 84 00, FIRESTOPPING.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this Section.

B. ASTM International (ASTM):

1. C518-17 – Standard Test Method for Steady-State Thermal Transmission

Properties by Means of the Heat Flow Meter Apparatus.

2. C1338-19 – Standard Test Method for Determining Fungi Resistance of

Insulation Materials and Facings.

3. D1621-16 – Standard Test Method for Compressive Properties of Rigid

Cellular Plastics.

4. D1622-14 – Standard Test Method for Apparent Density of Rigid

Cellular Plastics.

5. D1623-17 - Standard Test Method for Tensile and Tensile Adhesion

Properties of Rigid Cellular Plastics.

6. D2126-15 – Standard Test Method for Response of Rigid Cellular

Plastics to Thermal and Humid Aging.

7. D6226-15 – Standard Test Method for Open Cell Content of Rigid

Cellular Plastics.

8. E84-15a - Surface Burning Characteristics of Building Materials.

9. E96-16 – Standard Test Methods for Water Vapor Transmission of

Materials.

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10. E2357-18 – Standard Test Method for Determining Air Leakage Rate of Air Barrier Assemblies.

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Description of each product.

2. Primer indicating manufacturer recommendation for each application.

C. Sustainable Construction Submittals:

1. Recycled Content: Identify post-consumer and pre-consumer recycled content percentage by weight.

2. Low Pollutant-Emitting Materials:

a. Show volatile organic compound types and quantities.

1.5 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.6 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight facility.

B. Protect products from damage during handling and construction operations.

C. Protect foam plastic insulation from UV exposure.

1.7 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

PART 2 - PRODUCTS

2.1 INSULATION - GENERAL

A. Insulation Thickness:

1. Provide thickness required by R-value shown on drawings.

2. Provide thickness indicated when R-value is not shown on drawings.

B. Insulation Types:

Bancroft-AE Project No. 18-102 07 21 29-3 01-31-2020

1. Provide one insulation type for each application.

C. Sustainable Construction Requirements:

1. Insulation Recycled Content:

a. Polyisocyanurate/polyurethane foam-in-place: 5 percent recovered material.

2. Low Pollutant-Emitting Materials: Comply with VOC limits specified in Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS for the following products:

a. Non-Flooring Adhesives and Sealants.

2.2 THERMAL INSULATION

A. Spray applied polyurethane foam insulation and air barrier material suitable for buildings:

1. Density: 32 Kg per m3 (2.0 lbs per ft3), nominal.

2. Thermal Resistance:

a. Initial R-value per inch thickness: 1.2 K m2 per W (7.0 sf degrees F h per Btu) minimum.

b. Aged R-value per inch thickness (180 days at 23 degrees C (76 degrees F): 1.23 K m2 per W (7.0 sf degrees F h per Btu) minimum.

3. Air Permeance: Less than 0.02 L per s-m2 at 75 Pa (0.004 cfm per sf at 1.57 psf).

4. Air Leakage: Less than 0.02 L per s-m2 at 75 Pa (0.004 cfm per sf at 1.57 psf).

5. Compressive Strength: Minimum 195 kPa (28.3 psi).

6. Tensile Strength: Minimum 103 kPa (15 psai).

7. Water Vapor Permeance: Less than 69 ng per Pa sm2 (1.2 US perms at

25 mm for 1-inch thickness).

8. Vapor Retarder: Class III.

9. Closed Cell Content: 90 percent.

10. Fungus Resistance: Pass, with no growth.

11. Flame Spread Index: 25 or less.

12. Smoke Development Index: 450 or less.

2.3 ACCESSORIES

A. Primer: As required by insulation manufacturer for substrates.

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B. Insulation Substrate Primer (to aid adhesion on glossy substrates):

Roller or brush applied multipurpose primer designed and formulated for improved bonding of spray-applied foam insulation product onto smooth, glossy surfaces. Low-VOC, low-odor, single-coat, one-component, latex primer as recommended by insulation manufacturer.

PART 3 - EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Verify other work on and within spaces to be insulated is complete prior to application.

C. Protect existing construction and completed work from damage.

D. Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

3.2 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions and approved submittal drawings.

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative

(COR) consideration.

B. Install insulation to a uniform monolithic density without voids.

C. Install insulation to a minimum cured thickness of three inches, unless otherwise indicated. Where framing cavity is less than three inches, fill cavity completely.

3.3 THERMAL INSULATION

A. Inside Face of Exterior Wall Insulation:

1. Location: On interior face of solid masonry and concrete walls, beams, beam soffits, underside of floors, and to face of studs to support interior wall finish where indicated.

2. Bond insulation to solid vertical surfaces. Extend sprayed insulation barrier system into rough openings such as doors, windows, louvers, and other exterior penetrations. Use self-adhering air barrier transition strips if necessary to achieve full extension and continuity of the barrier at these locations.

Seal edges of barrier at junctures with rough openings.

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3. Sequence work so as to completely seal all penetrations resulting from pipes, vents, wires, conduit, electrical fixtures, structural members or other construction. If penetrations through the sprayed insulation are made after the initial application, reapply in accordance with manufacturer’s written instructions for such remedial work.

4. Trim, as required, any excess thickness that would interfere with the application of cladding and covering systems by other trades.

5. Complete connections to other components and repair any gaps, holes or other damage using material approved by the manufacturer.

3.4 CLEANING

A. Remove excess adhesive before adhesive sets.

3.5 PROTECTION

A. Protect insulation from construction operations.

B. Repair damage.

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SECTION 07 22 00

ROOF AND DECK INSULATION

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Roof and deck insulation, substrate board, vapor retarder, and cover board on new metal deck substrates ready to receive roofing or waterproofing membrane.

1.2 RELATED REQUIREMENTS

A. Non-Flooring Adhesives and Sealants VOC Limits: Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS.

B. Wood Cants, Blocking, and Edge Strips: Section 06 10 00, ROUGH

CARPENTRY.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. American Society of Heating, Refrigeration and Air Conditioning

(ASHRAE):

1. Standard 90.1-13 - Energy Standard for Buildings Except Low-Rise

Residential Buildings.

C. ASTM International (ASTM):

1. C208-12 - Cellulosic Fiber Insulating Board.

2. C552-15 - Cellular Glass Thermal Insulation.

3. C726-05 - Mineral Fiber Roof Insulation Board.

4. C728-15 - Perlite Thermal Insulation Board.

5. C1177/C1177M-13 - Glass Mat Gypsum Substrate for Use as Sheathing.

6. C1278/C1278M-07a(2015) - Fiber-Reinforced Gypsum Panel.

7. C1289-15 - Faced Rigid Cellular Polyisocyanurate Thermal Insulation

Board.

8. C1396/C1396M-14a - Gypsum Board.

9. D41/D41M-11 - Asphalt Primer Used in Roofing, Dampproofing, and

Waterproofing.

10. D312-06 - Asphalt Used in Roofing.

11. D1970/D1970M-15 - Self-Adhering Polymer Modified Bituminous Sheet

Materials Used as Steep Roofing Underlayment for Ice Dam Protection.

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12. D2178/D2178M-15 - Asphalt Glass Felt Used in Roofing and

Waterproofing.

13. D2822/D2822M-11 - Asphalt Roof Cement, Asbestos Containing.

14. D4586/D4586M-07(2012)e1 - Asphalt Roof Cement, Asbestos-Free.

15. E84-15a - Surface Burning Characteristics of Building Materials.

16. F1667-15 - Driven Fasteners: Nails, Spikes, and Staples.

D. National Roofing Contractors Association (NRCA):

1. Manual-15 - The NRCA Roofing Manual: Membrane Roof Systems.

E. U.S. Department of Agriculture (USDA):

1. USDA BioPreferred Program Catalog.

F. UL LLC (UL):

1. Listed - Online Certifications Directory.

G. U.S. Department of Commerce National Institute of Standards and

Technology (NIST):

1. DOC PS 1-09 - Structural Plywood.

2. DOC PS 2-04 - Performance Standard for Wood-Based Structural-Use

Panels.

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Submittal Drawings:

1. Show size, configuration, and installation details.

a. Nailers, cants, and terminations.

b. Layout of insulation showing slopes, tapers, penetrations, and edge conditions.

C. Manufacturer's Literature and Data:

1. Description of each product.

D. Samples:

1. Roof insulation, each type.

2. Fasteners, each type.

E. Sustainable Construction Submittals:

1. Recycled Content: Identify post-consumer and pre-consumer recycled content percentage by weight.

2. Biobased Content:

a. Show type and quantity for each product.

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3. Low Pollutant-Emitting Materials:

a. Show volatile organic compound types and quantities.

b. Certify each composite wood and agrifiber product contain no added urea formaldehyde.

F. Qualifications: Substantiate qualifications meet specifications.

1. Installer.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: Same installer as Division 07 roofing section installer.

1.6 DELIVERY

A. Comply with recommendations of NRCA Manual.

B. Deliver products in manufacturer's original sealed packaging.

C. Mark packaging, legibly. Indicate manufacturer's name or brand, type, and manufacture date.

D. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.7 STORAGE AND HANDLING

A. Comply with recommendations of NRCA Manual.

B. Store products indoors in dry, weathertight facility.

C. Protect products from damage during handling and construction operations.

1.8 FIELD CONDITIONS

A. Environment:

1. Install products when existing and forecasted weather permit installation according to manufacturer's instructions.

1.9 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

B. Manufacturer's Warranty: Warrant substrate board, vapor retarder, insulation, and cover board against material and manufacturing defects as part of Division 07, roofing system warranty.

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PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

A. Insulation Thermal Performance:

1. Overall Average R-Value: RSI-57 (R-33), minimum.

2. Any Location R-Value: RSI-17 (R-10), minimum.

B. Fire and Wind Uplift Resistance: Provide roof insulation complying with requirements specified in Division 07, roofing section.

C. Insulation on Metal Decking: UL labeled indicating compliance with one of the following:

1. UL Listed.

2. Insulation Surface Burning Characteristics: When tested according to

ASTM E84.

a. Flame Spread Rating: 75 maximum.

b. Smoke Developed Rating: 150 maximum.

2.2 PRODUCTS - GENERAL

A. Provide each product from one manufacturer.

B. Sustainable Construction Requirements:

1. Insulation Recycled Content:

a. Mineral Fiber: 75 percent total recycled content, minimum.

b. Fiberglass: 20 percent total recycled content, minimum.

c. Cellulose: 75 percent post-consumer recycled content, minimum.

d. Perlite Composite Board: 23 percent post-consumer recycled content, minimum.

e. Rigid Foam: 9 percent total recycled content, minimum.

f. Glass Fiber Reinforced Rigid Foam: 6 percent total recycled content, minimum.

2. Low Pollutant-Emitting Materials: Comply with VOC limits specified in Section 01 81 13, SUSTAINABLE CONSTRUCTION REQUIREMENTS for the following products:

a. Non-flooring adhesives and sealants.

b. Composite wood and agrifiber.

3. Bio-Based Materials: Where applicable, provide products designated by USDA and meeting or exceeding USDA recommendations for bio-based content, and products meeting Rapidly Renewable Materials and

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2.3 ADHESIVES

A. Primer: ASTM D41/D41M.

B. Asphalt: ASTM D312, Type III or IV for vapor retarders and insulation.

C. Modified Asphaltic Insulation Adhesive: Insulation manufacturer's recommended modified asphaltic, asbestos-free, cold-applied adhesive formulated to adhere roof insulation to substrate or to another insulation layer.

D. Bead-Applied Urethane Insulation Adhesive: Insulation manufacturer's recommended bead-applied, low-rise, one- or multicomponent urethane adhesive formulated to adhere roof insulation to substrate or to another insulation layer.

E. Full-Spread Applied Urethane Insulation Adhesive: Insulation manufacturer's recommended spray-applied, low-rise, two-component urethane adhesive formulated to adhere roof insulation to substrate or to another insulation layer.

F. Roof Cement: Asbestos free, ASTM D2822/D2822M, Type I or Type II; or, ASTM D4586/D4586M, Type I or Type II.

2.4 ROOF AND DECK INSULATION

A. Roof and Deck Insulation, General: Preformed roof insulation boards approved by roofing manufacturer.

B. Polyisocyanurate Board Insulation: ASTM C1289, Type II, Class 1, Grade

2, faced with glass fiber reinforced cellulosic felt facers on both major surfaces of the core foam.

C. Cellular Glass Board Insulation: ASTM C552, Type IV, kraft-paper sheet faced.

D. Perlite Board Insulation: ASTM C728, expanded perlite particles, selected binders, and cellulosic fibers with surface treated to reduce bitumen absorption.

E. Cellulosic Fiber Board Insulation: ASTM C208, Type II, Grade 2 for single-ply roofing .

F. Tapered Roof Insulation System:

http://www.biopreferred.gov/

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1. Fabricate of mineral fiberboard, polyisocyanurate, perlite board, or cellular glass. Use only one insulation material for tapered sections. Use only factory-tapered insulation.

2. Cut to provide high and low points with crickets and slopes as shown.

3. Minimum thickness of tapered sections; 38 mm (1-1/2 inch).

4. Minimum slope 1/48 (1/4 inch per 12 inches).

2.5 INSULATION ACCESSORIES

A. Glass (Felt): ASTM D2178/D2178M, Type VI, heavy duty ply sheet.

B. Cants and Tapered Edge Strips:

1. Wood Cant Strips: Refer to Section 06 10 00, ROUGH CARPENTRY.

2. Insulation Cant Strips: ASTM C208, Type II, Grade 1, cellulosic-fiber insulation board.

3. Tapered Edge Strips: 1/12 (1 inch per 12 inches), from 0 mm

(0 inches), 300 mm to 450 mm (12 inches to 18 inches) wide.

a. Cellulosic Fiberboard: ASTM C208.

b. Mineral Fiberboard: ASTM C726.

c. Perlite Board: ASTM C728.

C. Vapor Retarder:

1. Glass-Fiber Felts: ASTM D2178/D2178M, Type IV, asphalt impregnated.

2. Self-Adhering Sheet Vapor Retarder: ASTM D1970/D1970M, minimum

1.0 mm (40 mils) thick membrane of HDPE film fully coated with asphalt adhesive, or 0.76 to 1.0 mm (30 to 40 mils) thick membrane of butyl rubber based adhesive backed by a layer of high density cross-laminated polyethylene; maximum permeance rating of

6 ng/Pa/s/sq. m (0.1 perms).

D. Substrate Board:

1. Gypsum Board: ASTM C1396/C1396M, 16 mm (5/8 inch) thick, Type X.

2. Glass-Mat, Water-Resistant Gypsum Roof Board: ASTM C1177/C1177M, Type X, 16 mm (5/8 inch) thick, factory primed.

E. Cover Board:

1. Glass-Mat, Water-Resistant Gypsum Roof Board: ASTM C1177/C1177M, 16 mm (5/8 inch) thick, factory primed.

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2.6 ACCESSORIES

A. Fasteners: Corrosion-resistant carbon steel fasteners and galvalume-coated steel or plastic round plates for fastening substrate board and insulation to roof deck.

B. Nails: ASTM F1667; type to suit application.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Comply with requirements of Division 07 roofing section.

3.2 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing construction and completed work from damage.

3.3 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions.

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

B. Comply with requirements of UL for insulated steel roof deck.

C. Attach substrate board and other products to meet requirements of

Division 07 roofing section.

3.4 SUBSTRATE BOARD INSTALLATION

A. Fasten substrate board to top flanges of steel decking to resist uplift pressures according requirements for specified roofing system.

1. Locate the long dimension edge joints solidly bearing on top of decking ribs.

3.5 VAPOR RETARDER INSTALLATION

A. Vapor Retarder Installation, General:

1. Install continuous vapor retarder on roof decks where indicated.

2. At vertical surfaces, turn up vapor retarder to top of insulation or base flashing.

3. Seal penetrations through vapor retarder with roof cement to prevent moisture entry from below.

3.6 INSULATION INSTALLATION

A. Insulation Installation, General:

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1. Base Sheet: Where required by roofing system, install one lapped base sheet specified in Division 07 roofing section by mechanically fastening to roofing substrate before installation of insulation.

2. Cant Strips: Install preformed insulation cant strips at junctures of roofing system with vertical construction.

B. Insulation Thickness:

1. Thickness of roof insulation shown on drawings is nominal. Provide thickness required to comply with specified thermal performance.

2. Insulation on Metal Decks: Provide insulation in minimum thickness recommended by insulation manufacturer to span deck flutes. Support edges of insulation on metal deck ribs.

3. When actual insulation thickness differs from drawings, coordinate alignment and location of roof drains, flashing, gravel stops, fascias and similar items.

4. Where tapered insulation is used, maintain insulation thickness at high points and roof edges shown on drawings.

a. Low Point Thickness: Minimum 38 mm (1-1/2 inches).

5. Use minimum two layers of insulation when required thickness is

68 mm (2.7 inch) or greater.

C. Lay insulating units with close joints, in regular courses and with end joints staggered.

1. Stagger joints between layers minimum 150 mm (6 inches).

D. Lay units with long dimension perpendicular to the rolled

(longitudinal) direction of the roofing felt.

E. Seal cut edges at penetrations and at edges against blocking with bitumen or roof cement.

F. Cut to fit tightly against blocking or penetrations.

G. Cover all insulation installed on the same day; comply with temporary protection requirements of Division 07 roofing section.

H. Installation Method:

1. Adhered Insulation:

a. Prime substrate as required.

b. Set each layer of insulation firmly in solid mopping of hot asphalt.

c. Set each layer of insulation firmly in ribbons of bead-applied insulation adhesive.

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d. Set each layer of insulation firmly in uniform application of full-spread insulation adhesive.

2. Mechanically Fastened Insulation:

a. Fasten insulation according to requirements in Division 07 roofing section.

b. Fasten insulation to resist uplift pressures specified in

Division 07 roofing section.

3. Mechanically Fastened and Adhered Insulation:

a. Fasten first layer of insulation according to "Mechanically

Fastened Insulation" requirements.

b. Fasten each subsequent layer of insulation according to "Adhered

Insulation" requirements.

3.7 COVER BOARD INSTALLATION

A. Install cover boards over insulation with long joints in continuous straight lines with staggered end joints.

B. Offset cover board joints from insulation joints 150 mm (6 inches), minimum.

C. Secure cover boards according to "Adhered Insulation" .

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SECTION 07 31 13

ASPHALT SHINGLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Fiberglass asphalt shingles over underlayment nailed to roof sheathing.

1.2 RELATED REQUIREMENTS

A. Counterflashing and Flashing of Roof Projections: Section 07 60 00, FLASHING AND SHEET METAL.

B. Roof Hatches (Scuttles) and Roof Vents: Section 07 71 00, ROOF

SPECIALTIES.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. ASTM International (ASTM):

1. D226/D226M-09 - Asphalt-Saturated Organic Felt Used in Roofing and

Waterproofing.

2. D1970/D1970M-15a - Self-Adhering Polymer Modified Bituminous Sheet

Materials Used as Steep Roofing Underlayment for Ice Dam Protection.

3. D3018/D3018M-11 - Class A Asphalt Shingles Surfaced with Mineral

Granules.

4. D3161/D3161M-15 - Wind-Resistance of Steep Slope Roofing Products

(Fan-Induced Method).

5. D3462/D3462M-10a - Asphalt Shingles Made from Glass Felt and

Surfaced with Mineral Granules.

6. F1667-05(2011) - Driven Fasteners: Nails, Spikes, and Staples.

C. UL LLC (UL):

1. 790-14 - Fire Tests of Roof Coverings.

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Description of each product.

2. Installation instructions.

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3. Warranty.

C. Samples:

1. Shingles: Full size each type, color and texture.

1.5 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, manufacture date, and the label of

Underwriters Laboratories.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.6 STORAGE AND HANDLING

A. Store shingles according to manufacturer's instructions. Store roll goods on end in upright position.

B. Protect products from damage during handling and construction operations.

C. Keep materials dry, covered completely and protected from weather.

1.7 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

B. Manufacturer's Warranty: Warrant asphalt shingles against material and manufacturing defects.

1. Material Warranty Period: 35 years.

2. Wind-Speed Warranty Period: Resist wind speeds up to 160 km/h (100 mph) for 15 years.

3. Algae-Resistance Warranty Period: No discoloration for 10 years.

PART 2 - PRODUCTS

2.1 PRODUCTS - GENERAL

A. Basis of Design: EXTERIOR ENCLOSURE MATERIAL LEGEND as indicated on the

Drawings.

B. Provide each product from one manufacturer.

1. Provide each product exposed to view from one production run.

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2.2 ASPHALT SHINGLES

A. Asphalt Shingles: Fiberglass reinforced, laminated type, square butt in size, color and texture to match contiguous existing asphalt shingles.

1. ASTM D3462/D3462M and ASTM D3018/D3018M, Type I, self-sealing.

2. ASTM D3161/D3161M, Class D or F wind-resistant.

3. UL 790 Class A fire resistance.

4. Minimum Weight: 10.3 kg/sq. m (210 lbs./100 sq. ft.).

2.3 ROOFING NAILS

A. ASTM F1667, Type I, Style 20, galvanized steel, deformed shanks, heads

10 mm to 11 mm (3/8 inch to 7/16 inch) diameter.

1. Nails for Shingles: 32 mm (1-1/4 inches) long.

2. Nails for Felt: 19 mm (3/4 inch) long.

2.4 ROOFING UNDERLAYMENT

A. Organic Felt: ASTM D226/D226M, Type l.

B. Self-Adhering Modified Bituminous Underlayment: ASTMD1970/D1970M.

2.5 METAL FLASHING

A. Provide metal roof flashings, including apron flashings, step flashings, valley flashings, drip edges, and vent pipe flashings specified in Section 07 60 00, FLASHING AND SHEET METAL.

2.6 RIDGE VENTS

A. Ridge Vents: Manufacturer's standard ridge vent for use under asphalt shingles.

1. Provide ridge vents with internal filters, internal baffles, or external baffles, for weather protection.

2. Free Area: Minimum 25400 sq. mm per m (12 sq. inches per foot).

PART 3 - EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for roofing installation.

1. Verify roof substrates are sound, within manufacturer's tolerances, and free from defects which would interfere with roofing installation.

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Bancroft-AE Project No. 18-102 07 31 13 - 4 01-31-2020

2. Verify roof accessories, vent pipes and other projections through roof are in place and roof flashing is installed, or ready for installation, before installing shingles.

B. Protect existing construction and completed work from damage.

3.2 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions and approved submittal drawings.

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

3.3 METAL DRIP EDGE INSTALLATION

A. At eaves and rakes, install stainless steel drip edges specified in

Section 07 60 00, FLASHING AND SHEET METAL.

1. Eaves: Install metal drip edge before underlayment.

2. Rakes: Install metal drip edge after underlayment.

B. Secure metal drip edges with compatible nails spaced maximum 250 mm

(10 inches) on center along inner edges.

3.4 FLASHING INSTALLATION

A. Install metal flashings specified in Section 07 60 00, FLASHING AND

SHEET METAL at intersections of roofs, adjoining walls, or projections through deck such…