W912QR24R0048_FIO_V4b_Specs-0000.pdf

Solicitation For Rough River Dam Safety Modification Project Phase II - New Outlet Works and Cutoff Wall

P2: 145870

Design-Bid-Build

Specifications Vol. 4b (Div. 07-31 11 00)

For Information Only

23 September 2024

W912QR24R0048

ARIMS: 1200

Disposition: Permanent

W912QR24R0048_FIO_V4b_Specs-0000

145870 Rough River Dam For Information Only BCOES Review DSM Phase 2: New Outlet Works and Cutoff Wall

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 31 19.23 06 5/24 WEATHER AND WATER STAGE

DATA/RESTRICTIONS

00 31 31.13 06 08/24 SUBSURFACE INVESTIGATION INFORMATION

00 80 00.00 06 04/21, CHG 1: 06/23 SPECIAL PROVISIONS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 5/24 SUMMARY OF WORK

01 31 00 08/24 DATA MANAGEMENT

01 32 01.00 06 10/23 PROJECT SCHEDULE

01 32 23 SURVEY CONTROL, LiDAR, ORTHOIMAGERY

AND BATHYMETRY

01 33 00 08/18, CHG 4: 02/21 SUBMITTAL PROCEDURES

01 33 16.00 08 8/24 CONTRACTOR SUBMITTALS REQUIRING

ENGINEERING AFTER AWARD

01 35 00.00 06 5/24 SPECIAL PROCEDURES

01 35 26.00 06 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 02/24 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.15 10 11/23 RESIDENT MANAGEMENT SYSTEM CONTRACTOR

MODE (RMS CM)

01 45 04.10 06 CONTRACTOR QUALITY CONTROL

01 50 00 11/20, CHG 2: 08/22 TEMPORARY CONSTRUCTION FACILITIES AND

CONTROLS

01 52 13.20 06 05/2024 GOVERNMENT FACILITIES

01 52 13.30 08 08/24 LABORATORY TESTING FACILITIES

01 57 19.00 06 11/21 TEMPORARY ENVIRONMENTAL CONTROLS AND

PERMITS

01 74 19 02/19, CHG 3: 11/21 CONSTRUCTION WASTE MANAGEMENT AND

DISPOSAL

01 78 23 6/24 OPERATION AND MAINTENANCE DATA

DIVISION 02 - EXISTING CONDITIONS

02 32 00 5/24 ADDITIONAL INVESTIGATIONS

02 41 00 08/22 DEMOLITION

DIVISION 03 - CONCRETE

03 00 00 6/24 GENERAL CONCRETE REQUIREMENTS

03 15 00 11/21 BRIDGE CONCRETE ACCESSORIES

03 23 00 11/21 POST TENSIONED REINFORCING

03 30 00 02/19 CAST-IN-PLACE CONCRETE OUTLET WORKS

03 37 13 11/21 SHOTCRETE

03 37 29 11/21 CONCRETE FOR CUTOFF WALL

03 70 00 11/21 MASS CONCRETE

DIVISION 04 - MASONRY

04 20 00 08/21 UNIT MASONRY

DIVISION 05 - METALS

05 05 20 05/22 POST-INSTALLED CONCRETE ANCHORS

05 12 10 08/21 ELASTOMERIC BEARING PADS

05 12 23 08/21 GENERAL STRUCTURAL STEEL

PROJECT TABLE OF CONTENTS Page 1

05 12 33 08/21 STRUCTURAL STEEL BRIDGES

05 14 00.13 11/19 WELDING STRUCTURAL ALUMINUM

05 21 00 05/21 STEEL JOIST FRAMING

05 30 00 08/21 STEEL DECKS

05 40 00 08/21 COLD-FORMED METAL FRAMING

05 50 13 08/21 MISCELLANEOUS METAL FABRICATIONS

05 50 15 08/21 CIVIL WORKS FABRICATIONS: GATE BONNETS

05 51 33 08/21 METAL LADDERS

05 52 00 08/21 METAL RAILINGS

05 59 20 11/21 FABRICATION OF HYDRAULIC STEEL

STRUCTURES

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 00 08/21 ROUGH CARPENTRY

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 21 13 02/21 BOARD AND BLOCK INSULATION

07 27 10.00 10 08/21 BUILDING AIR BARRIER SYSTEM

07 60 00 08/21 FLASHING AND SHEET METAL

07 61 14.00 20 08/21 STEEL STANDING SEAM ROOFING

07 81 00 02/21 SPRAY-APPLIED FIREPROOFING

07 84 00 05/21 FIRESTOPPING

07 92 00 08/21 JOINT SEALANTS

DIVISION 08 - OPENINGS

08 11 13 08/21 STEEL DOORS AND FRAMES

08 31 00 05/17, CHG 1: 08/18 ACCESS DOORS AND PANELS

08 33 23 08/21 OVERHEAD COILING DOORS

08 51 13 08/21 ALUMINUM WINDOWS

08 71 00 02/21 DOOR HARDWARE

08 81 00 05/21 GLAZING

08 91 00 08/21 METAL WALL LOUVERS

DIVISION 09 - FINISHES

09 22 00 02/21 SUPPORTS FOR PLASTER AND GYPSUM BOARD

09 29 00 08/21 GYPSUM BOARD

09 90 00 05/21 PAINTS AND COATINGS

09 97 02 02/21 PAINTING: HYDRAULIC STRUCTURES

DIVISION 10 - SPECIALTIES

10 14 00.10 08/21 EXTERIOR SIGNAGE

10 14 00.20 08/21 INTERIOR SIGNAGE

10 28 13 08/21 TOILET ACCESSORIES

10 44 16 08/21 FIRE EXTINGUISHERS

DIVISION 13 - SPECIAL CONSTRUCTION

13 34 19 11/21 METAL BUILDING SYSTEMS

DIVISION 14 - CONVEYING EQUIPMENT

14 21 13 05/21 ELECTRIC TRACTION FREIGHT ELEVATORS

DIVISION 22 - PLUMBING

PROJECT TABLE OF CONTENTS Page 2

22 14 29.00 40 05/21 SUMP PUMPS

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 30 00 05/20, CHG 1: 02/22 HVAC AIR DISTRIBUTION

23 82 00.00 20 02/16, CHG 1: 08/18 TERMINAL HEATING UNITS

23 83 00.00 20 04/06 ELECTRIC SPACE HEATING EQUIPMENT

DIVISION 26 - ELECTRICAL

26 00 00.00 20 07/21 BASIC ELECTRICAL MATERIALS AND METHODS

26 05 73 08/23 POWER SYSTEM STUDIES

26 08 00 11/22 APPARATUS INSPECTION AND TESTING

26 20 00 02/21 INTERIOR DISTRIBUTION SYSTEM

26 28 00.00 10 08/21 MOTOR CONTROL CENTERS AND PANELBOARDS

26 32 15.00 05/20 ENGINE-GENERATOR SET STATIONARY

15-2500 KW, WITH AUXILIARIES

26 36 00.00 10 08/21 AUTOMATIC TRANSFER SWITCH AND

BY-PASS/ISOLATION SWITCH

26 41 00 08/21 LIGHTNING PROTECTION SYSTEM

26 51 00 05/21 INTERIOR LIGHTING

26 56 00 05/21 EXTERIOR LIGHTING

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 31 70 08/21 INTERIOR FIRE ALARM SYSTEM, ADDRESSABLE

DIVISION 31 - EARTHWORK

31 00 00.00 06 5/24 EARTHWORK

31 05 22 11/21 NON-WOVEN GEOTEXTILE FILTER FABRIC

31 09 13.00 06 INSTRUMENTATION AND MONITORING

31 11 00 11/18 CLEARING AND GRUBBING

31 23 00.00 06 5/24 CONTROL OF WATER AND DEWATERING

31 23 05.00 06 09/21 MASS EXCAVATION

31 23 17.00 06 09/21 UNDERWATER BLASTING

31 23 18.00 06 09/21 BLASTING - SURFACE

31 32 23.00 06 6/24 SLURRY CONTROL DRILLING AND GROUTING

31 41 16 11/21 METAL SHEET PILING

31 56 10.00 06 5/24 CUTOFF WALL CONSTRUCTION

31 60 00.00 06 6/24 FOUNDATION PREPARATION

31 68 13 06/24 ROCK SLOPE REINFORCEMENT AND PERMANENT

ROCKFALL PROTECTION

31 71 16.00 06 09/21 ROCK TUNNELING

31 73 00 10/21 TUNNEL GROUTING

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 01 00 10/13 MISCELLANEOUS CONSTRUCTION

32 01 19.61 11/19 SEALING OF JOINTS IN RIGID PAVEMENT

32 11 10 02/21 OPEN GRADED AGGREGATE FOR DRAINAGE

32 11 16.16 11/11 KYTC CRUSHED STONE BASE CONSTRUCTION

32 12 13 05/17 BITUMINOUS TACK AND PRIME COATS

32 12 16 11/21 HOT-MIX ASPHALT (HMA) FOR ROADS

32 16 19 05/18 CONCRETE CURBS, GUTTERS AND SIDEWALKS

32 17 23 08/16, CHG 5: 11/18 PAVEMENT MARKINGS

32 18 16.13 08/17 PLAYGROUND PROTECTIVE SURFACING

32 31 13 11/21 CHAIN LINK FENCES AND GATES

PROJECT TABLE OF CONTENTS Page 3

32 31 13.15 06 06/01 GUARDRAIL

32 91 18.00 06 04/21 HIGH PERFORMANCE TURF REINFORCED MAT

32 92 19 08/17, CHG 1: 08/21 SEEDING

32 92 23 04/06, CHG 1: 08/21 SODDING

DIVISION 33 - UTILITIES

33 01 30.16 11/21, CHG 1: 02/24 TV INSPECTION OF SEWER LINES

33 11 00 02/18, CHG 2: 11/23 WATER UTILITY DISTRIBUTION PIPING

33 30 00 05/18 SANITARY SEWERAGE

33 40 00 11/21 STORMWATER UTILITIES

33 46 13 03/24 FOUNDATION DRAINAGE SYSTEM

33 46 16 05/18 SUBDRAINAGE PIPING

33 71 01 05/19, CHG 1: 11/19 OVERHEAD TRANSMISSION AND DISTRIBUTION

33 71 02 02/15 UNDERGROUND ELECTRICAL DISTRIBUTION

DIVISION 35 - WATERWAY AND MARINE CONSTRUCTION

35 01 70.13 05/21 WIRE ROPE AND RIGGING FOR OPERATING

DEVICES

35 05 40.14 10 08/21 HYDRAULIC POWER SYSTEMS FOR CIVIL

WORKS STRUCTURES

35 20 14 08/22 STOPLOGS

35 20 16.54 08/21 CAST IRON SERVICE DOOR

35 42 37.00 06 4/24 RIP RAP STONE PROTECTION

35 59 15.00 06 10/20 MARINE SAFETY BOOM

35 73 13 05/21 EMBANKMENT FOR EARTH AND ROCKFILL DAMS

DIVISION 40 - PROCESS INTERCONNECTIONS

40 05 13 08/21 PIPELINES, LIQUID PROCESS PIPING

40 05 13.96 05/21 WELDING PROCESS PIPING

40 33 33 08/21 KNIFE GATE VALVES

DIVISION 41 - MATERIAL PROCESSING AND HANDLING EQUIPMENT

41 22 13.14 08/21 BRIDGE CRANES, OVERHEAD ELECTRIC, TOP

RUNNING

41 22 23.19 05/21 MONORAIL JIB CRANE HOISTS

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 4

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 21 13

BOARD AND BLOCK INSULATION

02/21

PART 1 GENERAL

1.1 MEASUREMENT AND PAYMENT

1.2 REFERENCES

1.3 SUBMITTALS

1.4 MANUFACTURER'S DETAILS

1.5 PRODUCT DATA

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Delivery

1.6.2 Storage

1.7 SAFETY PRECAUTIONS

1.7.1 Other Safety Considerations

1.8 SPECIAL WARRANTIES

1.8.1 Guarantee

1.8.2 Warranty

PART 2 PRODUCTS

2.1 BLOCK OR BOARD INSULATION

2.1.1 Thermal Resistance

2.1.2 Fire Protection Requirements

2.1.3 Other Material Properties

2.1.4 Premolded Concrete Masonry Insert

2.1.5 Recycled Materials

2.1.6 Indoor Air Quality

2.1.7 Prohibited Materials

2.2 VAPOR RETARDER AND DAMPPROOFING

2.2.1 Vapor Retarder in Framed Walls and Roofs

2.3 PRESSURE SENSITIVE TAPE

2.4 PROTECTION BOARD OR COATING

2.5 ACCESSORIES

2.5.1 Adhesive

2.5.2 Mechanical Fasteners

PART 3 EXECUTION

3.1 EXISTING CONDITIONS

3.2 PREPARATION

3.2.1 Blocking Around Heat Producing Devices

3.3 INSTALLATION

3.3.1 Installation and Handling

3.3.2 Electrical Wiring

3.3.3 Cold Climate Requirement

3.3.4 Continuity of Insulation

3.3.5 Coordination

3.4 INSTALLATION ON WALLS

SECTION 07 21 13 Page 1

3.4.1 Installation using Furring Strips

3.4.2 Installation on Masonry Walls

3.4.3 Adhesive Attachment to Concrete and Masonry Walls

3.4.4 Mechanical Attachment on Concrete and Masonry Walls

3.4.5 Protection Board or Coating

3.5 VAPOR RETARDER

3.6 ACCESS PANELS AND DOORS

-- End of Section Table of Contents --

SECTION 07 21 13 Page 2

SECTION 07 21 13

BOARD AND BLOCK INSULATION

02/21

PART 1 GENERAL

1.1 MEASUREMENT AND PAYMENT

No separate or direct payment will be made for the work under this Section, and such work will be considered as a subsidiary obligation of the Contractor to provide a COMPLETE AND FULLY FUNCTIONING CONTROL TOWER. This includes all associated costs for labor, equipment, materials and supplies necessary to complete the work in accordance with the plans and specifications. All incidental costs associated with the performance of work in this section are included in the contract price. The Government will make no additional separate payment for items included herein or by reference.

1.2 REFERENCES

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 C165 (2007; R 2023) Standard Test Method for Measuring Compressive Properties of Thermal Insulations

ASTM C203 (2005a; R 2017) Breaking Load and Flexural Properties of Block-Type Thermal Insulation

ASTM C272/C272M (2018) Standard Test Method for Water Absorption of Core Materials for Sandwich Constructions

ASTM C553 (2013; R 2019) Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications

ASTM C578 (2023) Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation

ASTM C591 (2022) Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation

ASTM C930 (2019) Standard Classification of Potential Health and Safety Concerns Associated with Thermal Insulation Materials and Accessories

ASTM C1289 (2023a) Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board

SECTION 07 21 13 Page 3

ASTM D1621 (2016) Standard Test Method for Compressive Properties of Rigid Cellular Plastics

ASTM D3833/D3833M (1996; R 2019) Water Vapor Transmission of Pressure-Sensitive Tapes

ASTM D4397 (2016) Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications

ASTM E84 (2023) Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM E96/E96M (2022a; E 2023) Standard Test Methods for Water Vapor Transmission of Materials

INTERNATIONAL CODE COUNCIL (ICC)

ICC IBC (2021) International Building Code

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 31 (2020; TIA 23-1) Standard for the Installation of Oil-Burning Equipment

NFPA 54 (2024) National Fuel Gas Code

NFPA 70 (2023) National Electrical Code

NFPA 211 (2024) Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances

1.3 SUBMITTALS

Government approval/acceptance by the Resident Office (RO) is required for submittals with a "G" designation; submittals not having a "G" designation are for information only (FIO) or as otherwise designated. When used, a designation following the "G" designation identifies an additional office that will review the submittal for the Government. The following shall be submitted in accordance with LRL Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Manufacturer's Standard Details; G

Block or Board Insulation; G

Recycled Content for Block or Board Insulation; G

Indoor Air Quality for Block or Board Insulation; G

Vapor Retarder; G

Pressure Sensitive Tape; G

Protection Board or Coatings; G

SECTION 07 21 13 Page 4

Accessories including sealants; G

SD-07 Certificates

Block or Board Insulation; G

Vapor Retarder; G

Protection Board or Coating; G

Draft Special Warranties; G

Final Special Warranties; G

SD-08 Manufacturer's Instructions

Block or Board Insulation

Adhesive

1.4 MANUFACTURER'S DETAILS

Submit manufacturer's standard details indicating methods of attachment and spacing, transition and termination details, and installation details.

Include verification of existing conditions.

1.5 PRODUCT DATA

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

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Delivery

Deliver materials to the site in original sealed wrapping bearing manufacturer's name and brand designation, specification number, type, grade, R-value, and class. Store and handle to protect from damage. Do not allow insulation materials to become wet, soiled, crushed, or covered with ice or snow. Comply with manufacturer's recommendations for handling, storing, and protecting of materials before and during installation.

1.6.2 Storage

Inspect materials delivered to the site for damage and store out of weather in manufacturer's original packaging. Store only in dry locations, not subject to open flames or sparks, and easily accessible for inspection and handling. Keep materials wrapped and separated from off-gassing materials (such as drying paints and adhesives). Do not use materials that have visible moisture or biological growth. Comply with manufacturer's recommendations for handling, storage, and protection of materials before and during installation.

SECTION 07 21 13 Page 5

1.7 SAFETY PRECAUTIONS

1.7.1 Other Safety Considerations

Comply with the safety requirements of ASTM C930.

1.8 SPECIAL WARRANTIES

1.8.1 Guarantee

Guarantee insulation installation against failure due to ultraviolet light exposure for a period of three years from the date of Beneficial Occupancy or Substantial Completion. Submit draft and final guarantees in accordance with Sections 00 80 00.00 06 SPECIAL PROVISIONS.

1.8.2 Warranty

Provide manufacturer's material warranty for all system components for a period of three years from the date of Beneficial Occupancy or Substantial Completion. Submit draft and final warranties in accordance with Sections

00 80 00.00 06 SPECIAL PROVISIONS.

PART 2 PRODUCTS

2.1 BLOCK OR BOARD INSULATION

Provide thermal insulating materials as recommended by manufacturer for each type of application indicated. Provide insulation with the following physical properties and in accordance with the following standards:

a. Unfaced Preformed Rigid Polyurethane and Polyisocyanurate Board:

ASTM C591

b. Faced Rigid Cellular Polyisocyanurate and Polyurethane Insulation:

ASTM C1289 REV A

2.1.1 Thermal Resistance

Provide R Values as indicated on drawings.

2.1.2 Fire Protection Requirements

a. Flame spread index of 75 or less when tested in accordance with ASTM E84.

b. Smoke developed index of 200or less when tested in accordance with

ASTM E84.

c. Provide insulated assemblies in accordance ICC IBC Chapter Fire and Smoke Protection Features.

2.1.3 Other Material Properties

Provide thermal insulating materials with the following properties:

a. Rigid cellular plastics: Compressive Resistance at Yield: Not less than 10 pounds per square inch (psi) when measured according to

ASTM D1621.

b. Mineral fiber board: Compressive strength: Minimum load required to

SECTION 07 21 13 Page 6 produce a reduction in thickness of 10 percent pounds per square foot when tested according to ASTM C165.

c. Block-type insulation: Block-type insulation: Flexural strength: Not less than 25 psi when measured according to ASTM C203 REV A.

d. Water Vapor Permeance: Not more than 1.1 Perms or less when measured according to ASTM E96/E96M, desiccant method, in the thickness required to provide the specified thermal resistance, including facings, if any.

e. Water Absorption: Not more than 2 percent by total immersion, by volume, when measured according to ASTM C272/C272M.

f. Water Adsorption: Not more than 1 percent by volume when measured in accordance with paragraph 14 of ASTM C553.

2.1.4 Premolded Concrete Masonry Insert

Provide in accordance with ASTM C578 REV A. Provide inserts in concrete masonry units that are installed at the masonry unit manufacturing plant.

Provide insert with thickness of not less than 1 1/4 inches.

2.1.5 Recycled Materials

Provide thermal insulation containing recycled materials to the extent practicable, provided that the material meets all other requirements of this section. The minimum required recycled material contents (by weight, not volume) are:

Polyisocyanurate/Polyurethane: 9 percent

Phenolic Rigid Foam: 5 percent

Perlite Board: 75 percent post consumer paper

Provide data identifying percentage of recycled content for block or board insulation.

2.1.6 Indoor Air Quality

Provide certification of indoor air quality for block or board insulation.

2.1.7 Prohibited Materials

Do not provide materials containing asbestos.

2.2 VAPOR RETARDER AND DAMPPROOFING

2.2.1 Vapor Retarder in Framed Walls and Roofs

a. 6 mil thick polyethylene sheeting conforming to ASTM D4397 and having a water vapor permeance of 1 Perm or less when tested in accordance with

ASTM E96/E96M.

SECTION 07 21 13 Page 7

2.3 PRESSURE SENSITIVE TAPE

As recommended by manufacturer of vapor retarder(s). Match water vapor permeance rating for each vapor retarder specified. Provide tape in accordance with ASTM D3833/D3833M.

2.4 PROTECTION BOARD OR COATING

As recommended by insulation manufacturer.

2.5 ACCESSORIES

2.5.1 Adhesive

As recommended by insulation manufacturer.

2.5.2 Mechanical Fasteners

Corrosion resistant fasteners as recommended by the insulation manufacturer.

PART 3 EXECUTION

3.1 EXISTING CONDITIONS

Prior to installation, ensure all areas that are in contact with the insulation are dry and free of projections that could cause voids, compressed insulation, or punctured vapor retarders. For foundation perimeter or under slab applications, check that subsurface fill is flat, smooth, dry, and well tamped. Do not proceed with installation if moisture or other conditions are present, and notify the Contracting Officer of such conditions. Do not proceed with the work until conditions have been corrected and verified to be dry.

3.2 PREPARATION

3.2.1 Blocking Around Heat Producing Devices

Provide noncombustible blocking at all spaces between heat producing devices and the floors, ceilings and roofs through which they pass.

Provide in accordance with ICC IBC Section 2111.12 Fireplace Blocking and with the following clearances:

a. Recessed lighting fixtures, including wiring compartments, ballasts, and other heat producing devices, unless certified for installation surrounded by insulation: 3 inches from outside face of fixtures and devices or as required by NFPA 70 and, if insulation is placed above fixture or device, 24 inches above fixture.

b. Masonry chimneys or masonry enclosing a flue: 2 inches from outside face of masonry. Masonry chimneys for medium and high heat operating appliances: Minimum clearances required by NFPA 211.

c. Vents and vent connectors used for venting products of combustion, flues, and chimneys other than masonry chimneys: Minimum clearances as required by NFPA 211.

d. Gas Fired Appliances: Clearances as required in NFPA 54.

e. Oil Fired Appliances: Clearances as required in NFPA 31.

SECTION 07 21 13 Page 8

Blocking is not required if chimneys or flues are certified in writing by the chimney or flue manufacturer for use in contact with specific insulating materials.

3.3 INSTALLATION

3.3.1 Installation and Handling

Provide insulation in accordance with the manufacturer's printed installation instructions. Keep material dry and free of extraneous materials.

3.3.2 Electrical Wiring

Do not install insulation in a manner that would enclose electrical wiring between two layers of insulation.

3.3.3 Cold Climate Requirement

Place insulation on the outside of pipes.

3.3.4 Continuity of Insulation

Butt tightly against adjoining boards, studs, rafters, joists, sill plates, headers and obstructions. Provide continuity and integrity of insulation at corners, wall to ceiling joint, roof, and floor. Avoid creating thermal bridges and voids. Provide and verify continuity of insulative barrier throughout the building enclosure.

3.3.5 Coordination

Verify final installed insulation thicknesses comply with thicknesses indicated, R-values specified herein, and with the approved insulation submittal(s).

3.4 INSTALLATION ON WALLS

3.4.1 Installation using Furring Strips

Install insulation on members as recommended by insulation manufacturer.

3.4.2 Installation on Masonry Walls

Apply board directly to masonry with adhesive or fasteners as recommended by the insulation manufacturer. Fit between obstructions without impaling board on ties or anchors. Apply in parallel courses with joints breaking midway over course below. Place boards in moderate contact with adjoining insulation without forcing and without gaps. Cut and shape as required to fit around wall penetrations, projections or openings to accommodate conduit or other utilities. Seal around cutouts with sealant. Install insulation in wall cavities so that it leaves at least a nominal 1 inch air space outside of the insulation to allow for cavity drainage.

3.4.3 Adhesive Attachment to Concrete and Masonry Walls

Apply adhesive to wall and completely cover wall with insulation.

a. Full back bed method or

SECTION 07 21 13 Page 9

b. As recommended by the insulation manufacturer.

3.4.4 Mechanical Attachment on Concrete and Masonry Walls

Cut insulation to cover walls. Apply adhesive to wall and set clip or other mechanical fastener in adhesive as recommended by manufacturer.

After curing of adhesive, install insulation over fasteners and bend split prongs to provide a flush condition with the insulation. Butt all edges of insulation and seal with tape.

3.4.5 Protection Board or Coating

Install protection board or coating in accordance with manufacturer's printed instructions. Install protection over all exterior exposed insulation and to 1 foot below grade.

3.5 VAPOR RETARDER

Apply vapor retarder continuous across all surfaces. Overlap all joints at least 6 inches and seal with pressure sensitive tape. Seal at sills, header, windows, doors and utility penetrations. Repair punctures or tears with pressure sensitive tape.

3.6 ACCESS PANELS AND DOORS

Attach insulation to all access panels greater than 1 square foot and all access doors in insulated floors and ceilings. Use insulation with same R-Value as that for the floor or ceiling in which each panel occurs.

-- End of Section --

SECTION 07 21 13 Page 10

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 27 10.00 10

BUILDING AIR BARRIER SYSTEM

08/21

PART 1 GENERAL

1.1 SUMMARY

1.1.1 Measurement and Payment

1.2 REFERENCES

1.3 DEFINITIONS

1.3.1 Air Barrier Accessory

1.3.2 Air Barrier Assembly

1.3.3 Air Barrier Component

1.3.4 Air Barrier Envelope

1.3.5 Air Barrier Material

1.3.6 Air Barrier System

1.3.7 Air Leakage Rate

1.3.8 Air Leakage

1.3.9 Air Permeance

1.3.10 Environmental Separator

1.3.11 Vapor Permeance

1.4 PREPARATORY PHASE OR PRECONSTRUCTION CONFERENCE

1.5 SUBMITTALS

PART 2 PRODUCTS

2.1 AIR BARRIER

PART 3 EXECUTION

3.1 QUALITY CONTROL

3.1.1 Documentation and Reporting

3.1.2 Quality Control Testing And Inspection

3.2 REPAIR AND PROTECTION

-- End of Section Table of Contents --

SECTION 07 27 10.00 10 Page 1

THIS PAGE INTENTIONALLY LEFT BLANK

SECTION 07 27 10.00 10 Page 2

SECTION 07 27 10.00 10

BUILDING AIR BARRIER SYSTEM

08/21

PART 1 GENERAL

1.1 SUMMARY

This Section specifies the construction and quality control of the installation of an air barrier system. Construct the air barrier system indicated, taking responsibility for the means, methods, and workmanship of the installation of the air barrier system. The air barrier must be contiguous and connected across all surfaces of the enclosed air barrier envelope indicated. The maximum leakage requirements of individual air barrier components and materials are specified in the other specification sections covering these items.

1.1.1 Measurement and Payment

No separate or direct payment will be made for the work under this Section, and such work will be considered as a subsidiary obligation of the Contractor to provide a COMPLETE AND FULLY FUNCTIONING CONTROL TOWER. This includes all associated costs for labor, equipment, materials and supplies necessary to complete the work in accordance with the plans and specifications. All incidental costs associated with the performance of work in this section are included in the contract price. The Government will make no additional separate payment for items included herein or by reference.

1.2 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM D4541 (2022) Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers

ASTM E96/E96M (2022a; E 2023) Standard Test Methods for Water Vapor Transmission of Materials

ASTM E2178 (2021a) Standard Test Method for Air Permeance of Building Materials

ASTM E2357 (2018) Standard Test Method for Determining Air Leakage of Air Barrier Assemblies

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 285 (2023) Standard Fire Test Method for Evaluation of Fire Propagation

SECTION 07 27 10.00 10 Page 3

Characteristics of Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components

1.3 DEFINITIONS

The following terms as they apply to this section:

1.3.1 Air Barrier Accessory

Products designated to maintain air tightness between air barrier materials, air barrier assemblies and air barrier components, to fasten them to the structure of the building, or both (e.g., sealants, tapes, backer rods, transition membranes, fasteners, strapping, primers).

1.3.2 Air Barrier Assembly

The combination of air barrier materials and air barrier accessories that are designated and designed within the environmental separator to act as a continuous barrier to the movement of air through the environmental separator.

1.3.3 Air Barrier Component

Pre-manufactured elements such as windows, doors, dampers and service elements that are installed in the environmental separator.

1.3.4 Air Barrier Envelope

The combination of air barrier assemblies and air barrier components, connected by air barrier accessories that are designed to provide a continuous barrier to the movement of air through an environmental separator. There may be more than one air barrier envelope in a single building. Also known as Air Barrier System.

1.3.5 Air Barrier Material

A building material that is designed, tested and/or produced to provide the primary resistance to airflow through an air barrier assembly of a wall system.

1.3.6 Air Barrier System

Same as AIR BARRIER ENVELOPE.

1.3.7 Air Leakage Rate

The rate of airflow (CFM) driven through a unit surface area (sq.ft.) of an assembly or system by a unit static pressure difference (Pa) across the assembly. (example: 0.25 CFM/sq.ft. @ 75 Pa)

1.3.8 Air Leakage

The total airflow (CFM) driven through the air barrier system by a unit static pressure difference (Pa) across the air barrier envelope. (example:

6500 CFM @ 75 Pa)

SECTION 07 27 10.00 10 Page 4

1.3.9 Air Permeance

The tested rate of airflow (CFM) through a unit area (sq.ft.) of a material driven by unit static pressure difference (Pa) across the material (example:

0.004 CFM/sq.ft. @ 75 Pa) as established by ASTM E2178.

1.3.10 Environmental Separator

The parts of a building that separate the controlled interior environment from the uncontrolled exterior environment, or that separate spaces within a building that have dissimilar environments. Also known as the Control Layer.

1.3.11 Vapor Permeance

Vapor permeance is separated into three classes based on the water vapor permeance of a material as tested via ASTM E96/E96M

Class I Vapor Barrier/Retarder 0.1 perm or less

Class II Vapor Barrier/Retarder 0.1 perm to 1.0 perm

Class III Vapor Barrier/Retarder 1.0 perm to 10 perm

1.4 PREPARATORY PHASE OR PRECONSTRUCTION CONFERENCE

Organize pre-construction conferences between the air barrier inspector and the sub-contractors involved in the construction of or penetration of the air barrier system to discuss where the work of each sub-contractor begins and ends, the sequence of installation, and each sub-contractor's responsibility to ensure airtight joints, junctures, penetrations and transitions between materials. Discuss the products, and assemblies of products specified in the different sections to be installed by the different sub-contractors.

1.5 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Air Barrier System Shop Drawings; G, Manufacturer produced warranted air barrier system

SD-03 Product Data

Air Barrier System Product Data; G, DO

SD-04 Samples

Material Samples For Air Barrier System; G

SD-06 Test Reports

Testing and Inspection; G

SECTION 07 27 10.00 10 Page 5

PART 2 PRODUCTS

2.1 AIR BARRIER

Provide air barrier system of compatible parts from one or several manufacturers coordinated by the contractor or provide a single warranted system provided by a primary manufacturer. The air barrier system as part of a tested exterior wall assembly must meet the conditions of acceptance as tested in accordance with NFPA 285. Materials used for roof assembly air barrier must conform to the appropriate UL and FM wind and fire requirements for the specified roof assemblies.

If a complete air barrier system from a single manufacturer is utilized, weather warranted on not warranted, the air barrier system must conform to

ASTM E2357.

Materials in the following categories as used in the air barrier system or assembly of the exterior wall system are tested and are required to conform to ASTM E2178: Self-adhered sheet membranes, fluid applied membranes, spray polyurethane foam, mechanically fastened commercial building wrap, factory bonded membranes to sheathing, and adhesive backed commercial building wrap and accessory products.

Other materials used as an air barrier such as concrete, glass, wood, metal or gypsum board may or may not conform to ASTM E2178 but are acceptable provided that when integrated into the air barrier system or assemblies that they are not subject to material or environmental induced degradation in their final produced state and once incorporated in the permanent construction.

All materials used must be identifiable through manufacturer testing data and/or literature to be compatible with all the attached or adjoining materials or substrates used in the system.

Provide Air Barrier System Shop Drawings, Material Samples for Air Barrier System and Air Barrier System Product Data.

PART 3 EXECUTION

3.1 QUALITY CONTROL

3.1.1 Documentation and Reporting

Document the entire installation process on daily job site reports. These reports include information on the Installer, substrates, substrate preparation, products used, ambient and substrate temperature, the location of the air barrier installation, the results of the quality control procedures, and testing results.

3.1.2 Quality Control Testing And Inspection

Conduct the following tests and inspections as applicable in the presence of the Contracting Officer during installation of the air barrier system, and submit quality control reports as indicated below.

a. Provide a Daily Report of Observations with a copy to the Contracting Officer.

SECTION 07 27 10.00 10 Page 6

b. Inspect to assure continuity of the air barrier system throughout the building enclosure and that all gaps are covered, the covering is structurally sound, and all penetrations are sealed allowing for no infiltration or exfiltration through the air barrier system.

c. Inspect to assure structural support of the air barrier system to withstand design air pressures.

d. Inspect to assure masonry surfaces receiving air barrier materials are smooth, clean, and free of cavities, protrusions and mortar droppings, with mortar joints struck flush or as required by the manufacturer of the air barrier material.

e. Inspect and test to assure site conditions for application temperature, and dryness of substrates are within guidelines.

f. Inspect to assure substrate surfaces are properly primed if applicable and in accordance with manufacturer's instructions. Priming must extend at least 2 inches beyond the air barrier material to make it obvious that the primer was applied to the substrate before the air barrier material.

g. Inspect to assure laps in materials are at least a 2-inch minimum, shingled in the correct direction or mastic applied in accordance with manufacturer's recommendations, and with no fishmouths.

h. Inspect to assure that a roller has been used to enhance adhesion.

Identify any defects such as fishmouths, wrinkles, areas of lost adhesion, and improper curing. Note the intended remedy for the deficiencies.

i. Measure application thickness of liquid applied materials to assure that manufacturer's specifications for the specific substrate are met.

j. Inspect to assure that the correct materials are installed for compatibility.

k. Inspect to assure proper transitions for change in direction and structural support at gaps.

l. Inspect to assure proper connection between assemblies (membrane and sealants) for cleaning, preparation and priming of surfaces, structural support, integrity and continuity of seal.

m. Perform adhesion tests for fluid-applied and self-adhered air barrier membranes to assure that the manufacturer's specified adhesion strength properties are met. Determine the bond strength of coatings to substrate in accordance with ASTM D4541.

n. Provide cohesion tests for spray polyurethane foam (SPF). Perform adhesion tests as follows: Using a coring tool remove a sample and determine the relative adhesion quality of the foam. If the foam is hard to remove and leaves small bits of foam on the substrate it is called cohesive foam failure and is considered the best adhesion. If the foam comes away from the substrate with some force but is clean, it is called a mechanical bond. If it comes away easily from the substrate, the adhesion is poor. Cohesive foam failure and a good mechanical bond are acceptable.

SECTION 07 27 10.00 10 Page 7

o. Provide written test reports of all tests performed.

3.2 REPAIR AND PROTECTION

Upon completion of inspection, sample removal and similar services, repair damaged construction and restore substrates, coatings and finishes.

Protect construction exposed by or for quality control service activities, and protect repaired construction.

-- End of Section --

SECTION 07 27 10.00 10 Page 8

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 60 00

FLASHING AND SHEET METAL

08/21

PART 1 GENERAL

1.1 MEASUREMENT AND PAYMENT

1.2 REFERENCES

1.3 GENERAL REQUIREMENTS

1.4 SUBMITTALS

1.5 MISCELLANEOUS REQUIREMENTS

1.5.1 Product Data

1.5.2 Finish Samples

1.5.3 Operation and Maintenance Data

1.6 DELIVERY, HANDLING, AND STORAGE

PART 2 PRODUCTS

2.1 RECYCLED CONTENT

2.2 MATERIALS

2.2.1 Exposed Sheet Metal Items

2.2.2 Drainage

2.2.3 Copper, Sheet and Strip

2.2.4 Lead-Coated Copper Sheet

2.2.5 Lead Sheet

2.2.6 Steel Sheet, Zinc-Coated (Galvanized)

2.2.7 Zinc Sheet and Strip

2.2.8 Stainless Steel

2.2.9 Terne-Coated Steel

2.2.10 Aluminum Alloy Sheet and Plate

2.2.10.1 Alclad

2.2.11 Finishes

2.2.12 Cool Roof Finishes

2.2.12.1 ASHRAE 90.1 Compliance

2.2.13 Aluminum Alloy, Extruded Bars, Rods, Shapes, and Tubes

2.2.14 Solder

2.2.15 Reglets

2.2.15.1 Polyvinyl Chloride Reglets

2.2.15.2 Metal Reglets

2.2.15.2.1 Caulked Reglets

2.2.15.2.2 Friction Reglets

2.2.16 Asphalt Primer

2.2.17 Fasteners

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Metal Roofing

3.1.1.1 Standing-seam Method

3.1.2 Workmanship

SECTION 07 60 00 Page 1

3.1.3 Nailing

3.1.4 Cleats

3.1.5 Bolts, Rivets, and Screws

3.1.6 Seams

3.1.6.1 Flat-lock Seams

3.1.6.2 Lap Seams

3.1.6.3 Loose-Lock Expansion Seams

3.1.6.4 Standing Seams

3.1.6.5 Flat Seams

3.1.7 Soldering

3.1.7.1 Edges

3.1.8 Welding and Mechanical Fastening

3.1.8.1 Welding of Aluminum

3.1.8.2 Mechanical Fastening of Aluminum

3.1.9 Protection from Contact with Dissimilar Materials

3.1.9.1 Copper or Copper-bearing Alloys

3.1.9.2 Aluminum

3.1.9.3 Metal Surfaces

3.1.9.4 Wood or Other Absorptive Materials

3.1.10 Expansion and Contraction

3.1.11 Base Flashing

3.1.12 Counterflashing

3.1.13 Metal Reglets

3.1.13.1 Caulked Reglets

3.1.13.2 Friction Reglets

3.1.14 Polyvinyl Chloride Reglets for Temporary Construction

3.1.15 Gravel Stops and Fascia

3.1.15.1 Edge Strip

3.1.15.2 Joints

3.1.16 Metal Drip Edges

3.1.17 Flashing for Roof Drains

3.1.18 Scuppers

3.1.19 Eave Flashing

3.1.20 Sheet Metal Covering on Flat, Sloped, or Curved Surfaces

3.1.21 Expansion Joints

3.1.21.1 Roof Expansion Joints

3.1.21.2 Floor and Wall Expansion Joints

3.1.22 Flashing at Roof Penetrations and Equipment Supports

3.2 PAINTING

3.2.1 Aluminum Surfaces

3.3 CLEANING

3.4 REPAIRS TO FINISH

3.5 FIELD QUALITY CONTROL

3.5.1 Procedure

ATTACHMENTS:

Table II

-- End of Section Table of Contents --

SECTION 07 60 00 Page 2

SECTION 07 60 00

FLASHING AND SHEET METAL

08/21

PART 1 GENERAL

1.1 MEASUREMENT AND PAYMENT

No separate or direct payment will be made for the work under this Section, and such work will be considered as a subsidiary obligation of the Contractor to provide a COMPLETE AND FULLY FUNCTIONING CONTROL TOWER and COMPLETE AND FULLY FUNCTIONING TAILWATER FACILITIES. This includes all associated costs for labor, equipment, materials and supplies necessary to complete the work in accordance with the plans and specifications. All incidental costs associated with the performance of work in this section are included in the contract price. The Government will make no additional separate payment for items included herein or by reference.

1.2 REFERENCES

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.

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 90.1 - IP (2019) Energy Standard for Buildings Except Low-Rise Residential Buildings

AMERICAN WELDING SOCIETY (AWS)

AWS D1.2/D1.2M (2014; Errata 1 2014; Errata 2 2020) Structural Welding Code - Aluminum

ASTM INTERNATIONAL (ASTM)

ASTM A308/A308M (2010) Standard Specification for Steel Sheet, Terne (Lead-Tin Alloy) Coated by the Hot Dip Process

ASTM A480/A480M (2023b) Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM A653/A653M (2023) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM B32 (2020) Standard Specification for Solder Metal

ASTM B69 (2021) Standard Specification for Rolled Zinc

SECTION 07 60 00 Page 3

ASTM B101 (2022) Standard Specification for Lead-Coated Copper Sheet and Strip for Building Construction

ASTM B209 (2021a) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM B221 (2021) Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

ASTM B370 (2022) Standard Specification for Copper Sheet and Strip for Building Construction

ASTM C1549 (2016) Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer

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

ASTM D1784 (2020) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) Compounds

ASTM D4586/D4586M (2007; R 2018) Asphalt Roof Cement, Asbestos-Free

ASTM E408 (2013) Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques

ASTM E971 (2011) Standard Practice for Calculation of Photometric Transmittance and Reflectance of Materials to Solar Radiation

ASTM E1918 (2016) Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field

ASTM E1980 (2011; R 2019) Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1793 (2012) Architectural Sheet Metal Manual, 7th Edition

SINGLE PLY ROOFING INDUSTRY (SPRI)

ANSI/SPRI RD-1 (2014) Performance Standard for Retrofit Drains

SECTION 07 60 00 Page 4

1.3 GENERAL REQUIREMENTS

Finished sheet metal assemblies must form a weathertight enclosure without waves, warps, buckles, fastening stresses or distortion, while allowing for expansion and contraction without damage to the system. The sheet metal installer is responsible for cutting, fitting, drilling, and other operations in connection with sheet metal modifications required to accommodate the work of other trades. Coordinate installation of sheet metal items used in conjunction with roofing with roofing work to permit continuous, uninterrupted roofing operations.

1.4 SUBMITTALS

Government approval/acceptance by the Resident Office (RO) is required for submittals with a "G" designation; submittals not having a "G" designation are for information only (FIO) or as otherwise designated. When used, a designation following the "G" designation identifies an additional office that will review the submittal for the Government. The following shall be submitted in accordance with LRL Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Exposed Sheet Metal Coverings; G

Expansion Joints; G

Gravel Stops and Fascia; G

Flashing for Roof Drains; G

Base Flashing; G

Counterflashing; G

Flashing at Roof Penetrations and Equipment Supports; G

Reglets; G

Scuppers; G

Drip Edges; G

Eave Flashing; G

Recycled Content; S

SD-03 Product Data

Cool Roof Data; G

SD-04 Samples

Finish Samples; G

SD-08 Manufacturer's Instructions

Instructions for Installation; G

Quality Control Plan; G

SECTION 07 60 00 Page 5

SD-10 Operation and Maintenance Data

Cleaning and Maintenance; G

1.5 MISCELLANEOUS REQUIREMENTS

1.5.1 Product Data

Indicate thicknesses, dimensions, fastenings, anchoring methods, expansion joints, and other provisions necessary for thermal expansion and contraction. Scaled manufacturer's catalog data may be submitted for factory fabricated items.

1.5.2 Finish Samples

Submit two color charts and two finish sample chips from manufacturer's standard color and finish options for each type of finish indicated.

1.5.3 Operation and Maintenance Data

Submit detailed instructions for installation and quality control during installation, cleaning and maintenance, for each type of assembly indicated.

1.6 DELIVERY, HANDLING, AND STORAGE

Package and protect materials during shipment. Uncrate and inspect materials for damage, dampness, and wet-storage stains upon delivery to the job site. Remove from the site and replace damaged materials that cannot be restored to like-new condition. Handle sheet metal items to avoid damage to surfaces, edges, and ends. Store materials in dry, weather-tight, ventilated areas until installation.

PART 2 PRODUCTS

2.1 RECYCLED CONTENT

Provide products with recycled content. Provide data for each product with recycled content, identifying percentage of recycled content.

2.2 MATERIALS

Do not use lead, lead-coated metal, or galvanized steel. Use any metal listed by SMACNA 1793 for a particular item, unless otherwise indicated.

Provide materials, thicknesses, and configurations in accordance with SMACNA 1793 for each material. Different items need not be of the same metal, except that if copper is selected for any exposed item, all exposed items must be copper, and that contact between dissimilar metals must be avoided.

Furnish sheet metal items in 8 to 10 foot lengths. Single pieces less than 8 feet long may be used to connect to factory-fabricated inside and outside corners, and at ends of runs. Factory fabricate corner pieces with minimum 12 inch legs. Provide accessories and other items essential to complete the sheet metal installation. Provide accessories made of the same or compatible materials as the items to which they are applied. Fabricate sheet metal items of the materials specified below and to the gage, thickness, or weight shown in Table I at the end of this section. Provide sheet metal items with mill finish unless specified otherwise. Where more

SECTION 07 60 00 Page 6 than one material is listed for a particular item in Table I, each is acceptable and may be used, except as follows:

2.2.1 Exposed Sheet Metal Items

Must be of the same material. Consider the following as exposed sheet metal: fascia; cap, valley, steeped, base, and eave flashings and related accessories.

2.2.2 Drainage

Do not use copper for an exposed item if drainage from that item will pass over exposed masonry, stonework or other metal surfaces. In addition to the metals listed in Table I, lead-coated copper may be used for such items.

2.2.3 Copper, Sheet and Strip

Provide in accordance with ASTM B370, cold-rolled temper, H 00 (standard).

2.2.4 Lead-Coated Copper Sheet

Provide in accordance with ASTM B101.

2.2.5 Lead Sheet

Provide in a minimum weight of 4 pounds per square foot.

2.2.6 Steel Sheet, Zinc-Coated (Galvanized)

Provide in accordance with ASTM A653/A653M.

2.2.7 Zinc Sheet and Strip

Provide in accordance with ASTM B69, Type I, a minimum of 0.024 inch thick.

2.2.8 Stainless Steel

Provide in accordance with ASTM A480/A480M, Type 302 or 304, 2D Finish, fully annealed, dead-soft temper.

2.2.9 Terne-Coated Steel

Provide in accordance with ASTM A308/A308M, a minimum of 14 by 20 inch with minimum of 40 pound coating per double base box. ASTM A308/A308M.

2.2.10 Aluminum Alloy Sheet and Plate

Provide in accordance with ASTM B209 anodized as indicated on drawings.

form alloy, and temper appropriate for use. Provide material not less than 0.032-in in thickness.

2.2.10.1 Alclad

When fabricated of aluminum, fabricate the following items with Alclad 3003, Alclad 3004, or Alclad 3005, clad on both sides unless otherwise indicated.

a. Fascia

SECTION 07 60 00 Page 7

c. Flashing

2.2.11 Finishes

Provide exposed exterior sheet metal and aluminum with a baked on, factory applied color coating of polyvinylidene fluoride (PVF2) or approved equal fluorocarbon coating. Dry film thickness of coatings must be 0.8 to 1.3 mils. Color to be selected from manufacturer's full range of "cool roof" color choices. Field applications of color coatings are prohibited and will be rejected.

2.2.12 Cool Roof Finishes

Provide cool roof finish coatings and colors in accordance with one of the following methods of analysis:

2.2.12.1 ASHRAE 90.1 Compliance

Provide roof finishes having a minimum 3-year aged solar reflectance of

0.55 when tested in accordance with ASTM C1549 or ASTM E1918, and a minimum 3-year aged thermal emittance of 0.75 when tested in accordance with ASTM E971 or ASTM E408, or, a minimum 3-year aged Solar Reflectance Index of 64 when determined in accordance with the Solar Reflectance Index method in ASTM E1980 using a convection coefficient of 2.1 BTU per h ft2, to comply with ASHRAE 90.1 - IP.

2.2.13 Aluminum Alloy, Extruded Bars, Rods, Shapes, and Tubes

ASTM B221.

2.2.14 Solder

Provide in accordance with ASTM B32, 95-5 tin-antimony.

2.2.15 Reglets

2.2.15.1 Polyvinyl Chloride Reglets

Provide in accordance with ASTM D1784, Type II, Grade 1, Class 14333-D,

0.075 inch minimum thickness.

2.2.15.2 Metal Reglets

Provide factory fabricated caulked type or friction type reglets with a minimum opening of 1/4 inch and a depth of 1-1/4 inch, as approved.

2.2.15.2.1 Caulked Reglets

Provide with rounded edges, temporary reinforcing cores, and accessories as required for securing to adjacent construction. Provide built-up mitered corner pieces for inside and outside corners.

2.2.15.2.2 Friction Reglets

Provide with flashing receiving slots not less than 5/8 inch deep, one inch jointing tongues, and upper and lower anchoring flanges installed at 24 inch maximum snap-lock type receiver.

SECTION 07 60 00 Page 8

2.2.16 Asphalt Primer

Provide in accordance with ASTM D41/D41M.

2.2.17 Fasteners

Use the same metal as, or a metal compatible with the item fastened. Use stainless steel fasteners to fasten. Confirm compatibility of fasteners and items to be fastened to avoid galvanic corrosion due to dissimilar materials.

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Metal Roofing

3.1.1.1 Standing-seam Method

Make standing seams parallel with slope of roof. Fabricate sheets into long lengths at shop by locking short dimensions together and thoroughly soldering joints thus formed. In applying metal, turn up one edge of course at each side seam at right angles 1.5 inch. Then install 2 by 3 inch cleats spaced 12 inches apart by fastening one end of each cleat to roof with two one inch long nails and folding roof end back over nail heads.

Turn end adjoining turned-up side seam up over upstanding edge of course.

Turn up adjoining edge of next course 1.75 inches and abutting upstanding edges locked, turned over, and flattened against one side of standing seam. Make standing seams straight, rounded neatly at the top edges, and stand about one inch above roof deck. All sheets must be same length, except as required to complete run or maintain pattern. Locate transverse joints of each panel half way between joints in adjacent sheets. Align joints of alternate sheets horizontally to produce uniform pattern, as shown in SMACNA 1793.

3.1.2 Workmanship

Make lines and angles sharp and true. Free exposed surfaces from visible wave, warp, buckle, and tool marks. Fold back exposed edges neatly to form a 1/2 inch hem on the concealed side. Make sheet metal exposed to the weather watertight with provisions for expansion and contraction.

Make…