07 21 16 MINERAL FIBER BLANKET INSULATION.doc

SECTION 07 21 16

MINERAL FIBER BLANKET INSULATION

PART 1 GENERAL

1.1 REFERENCES

1.1.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only. Unless other wise noted, the latest published version and/or revision shall be used.

1.1.1.1 ASTM INTERNATIONAL (ASTM)

a. ASTM C 665 Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing

b. ASTM C 930 Potential Health and Safety Concerns Associated with Thermal Insulation Materials and Accessories

c. ASTM D 3833/3833M Water Vapor Transmission of Pressure-Sensitive Tapes

d. ASTM D 4397 Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications

e. ASTM D 828 Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus

f. ASTM E 136 Behavior of Materials in a Vertical Tube Furnace at 750 Degrees C

g. ASTM E 84 Standard Test Method for Surface Burning Characteristics of Building Materials

h. ASTM E 96 Standard Test Methods for Water Vapor Transmission of Materials

1.1.1.2 NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

a. NFPA 211 Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances

b. NFPA 31 Errata 2006 Installation of Oil Burning Equipment

c. NFPA 54 National Fuel Gas Code

d. NFPA 70 National Electrical Code

1.1.1.3 TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY (TAPPI)

a. TAPPI T803 OM Puncture Test of Container Board

1.1.1.4 U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

a. 29 CFR 1910.134 Respiratory Protection

1.2 SUBMITTALS

1.2.1 Government approval may be required on any of the following items. Items requiring submittals will be listed on the AF Form 66. Provide copies of all submittals per the requirements in Section 01 33 00, Submittal Procedures, or as listed on the AF Form 66.

1.2.1.1 SD-03 Product Data

a. Blanket Insulation

b. Sill Sealer Insulation

c. Vapor Retarder

d. Pressure Sensitive Tape

e. Accessories

1.2.1.2 SD-08 Manufacturer’s Instructions

a. Insulation

1.3 DELIVERY STORAGE AND HANDLING

1.3.1 Delivery

1.3.1.1 Deliver materials to 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.

1.3.2 Storage

1.3.2.1 Inspect materials delivered to the site for damage; unload 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.

1.4 SAFETY PRECAUTIONS

1.4.1 Respirators

1.4.1.1 Provide installers with dust/mist respirators, training in their use, and protective clothing, all approved by National Institute for Occupational Safety and Health (NIOSH)/Mine Safety and Health Administration (MSHA) in accordance with 29 CFR 1910.134.

1.4.2 Smoking

1.4.2.1 Do not smoke during installation of blanket thermal insulation.

1.4.3 Other Safety Concerns

1.4.3.1 Consider other safety concerns and measures as outlined in ASTM C 930.

PART 2 PRODUCTS

2.1 BLANKET INSULATION

2.1.1 Provide insulation of the type indicated or required. ASTM C 665, Type I, blankets without membrane coverings and II, blankets with non-reflecting coverings and III, blankets with reflective coverings; Class A, membrane-faced surface with a flame spread of 25 or less, Class B membrane-faced surface with a flame propagation resistance; critical radiant flux of 0.11 Btu/ft2 or greater. Provide a flame spread rating of 25 or 75 or less and a smoke developed rating of 150 or less when tested in accordance with ASTM E 84 as indicated or required.

2.1.2 Thermal Resistance

2.1.2.1 Provide indicated or required R-Value.

2.1.3 Recycled Materials

2.1.3.1 Provide Thermal Insulation containing recycled materials to the extent practicable, provided the material meets all other requirements of this section. The minimum required recycled materials content by weight are:

a. Rock Wool:

75 percent slag

b. Fiberglass:

20 to 25 percent glass cullet

2.1.4 Prohibited Materials

2.1.4.1 Do not provide asbestos containing materials.

2.2 SILL SEALER INSULATION

2.2.1 ASTM C 665, Type I.

2.3 BLOCKING

2.3.1 Wood, metal, unfaced mineral fiber blankets in accordance with ASTM C 665, Type I, or other approved materials. Use only non-combustible materials meeting the requirements of ASTM E 136 for blocking around chimneys and heat producing devices.

2.4 VAPOR RETARDER

2.4.1 Provide as indicated or required 6 mil thick polyethylene sheeting conforming to ASTM D 4397 and having a water vapor permeance of 1 perm or less when tested in accordance with ASTM E 96.

2.4.2 As indicated or required, provide a membrane with the following properties:

2.4.2.1 Water Vapor Permeance: ASTM E 96: 1 perm or less

2.4.2.2 Maximum Flame Spread: ASTM E 84: 25

2.4.2.3 Combustion Characteristics: Passing ASTM E 136

2.4.2.4 Puncture Resistance: TAPPI T803 OM: 25

2.4.2.5 Tensile Strength: ASTM D 828: 20

2.5 PRESSURE SENSITIVE TAPE

2.5.1 As recommended by the vapor retarder manufacturer and having a water vapor permeance rating of one perm or less when tested in accordance with ASTM D 3833/D 3833M.

2.6 ACCESSORIES

2.6.1 Adhesive

2.6.1.1 As recommended by the insulation manufacturer.

2.6.2 Mechanical Fasteners

2.6.2.1 Corrosion resistant fasteners as recommended by the insulation manufacturer.

2.6.3 Wire Mesh

2.6.3.1 Corrosion resistant and as recommended by the insulation manufacturer.

PART 3 EXECUTION

3.1 EXISTING CONDITIONS

3.1.1 Before installing insulation, ensure that areas that will be in contact with the insulation are dry and free of projections which could cause voids, compressed insulation, or punctured vapor retarders. If moisture or other conditions are found that do not allow the workmanlike installation of the insulation, do not proceed but notify Contracting Officer of such conditions.

3.2 INSTALLATION

3.2.1 Insulation

3.2.1.1 Install and handle insulation in accordance with manufacturer's instructions. Keep material dry and free of extraneous materials. Ensure personal protective clothing and respiratory equipment is used as required. Observe safe work practices.

3.2.1.2 Electrical Wiring

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

3.2.1.3 Continuity of Insulation

a. Install blanket insulation to butt tightly against adjoining blankets and to studs, rafters, joists, sill plates, headers and any obstructions. Where insulation required is thicker than depth of joist, provide full width blankets to cover across top of joists. Provide continuity and integrity of insulation at corners, wall to ceiling joints, roof, and floor. Avoid creating thermal bridges.

3.2.1.4 Installation at Bridging and Cross Bracing

a. Insulate at bridging and cross bracing by splitting blanket vertically at center and packing one half into each opening. Butt insulation at bridging and cross bracing; fill in bridged area with loose or scrap insulation.

3.2.1.5 Cold Climate Requirement

a. Place insulation to the outside of pipes.

3.2.1.6 Insulation Blanket with Affixed Vapor Retarder

a. Locate vapor retarder as indicated. Do not install blankets with affixed vapor retarders unless so specified. Unless the insulation manufacturer's instructions specifically recommend not to staple the flanges of the vapor retarder facing, staple flanges of vapor retarder at 6 inch intervals flush with face or set in the side of truss, joist, or stud. Avoid gaps and bulges in insulation and "fishmouth" in vapor retarders. Overlap both flanges when using face method. Seal joints and edges of vapor retarder with pressure sensitive tape. Stuff pieces of insulation into small cracks between trusses, joists, studs and other framing, such as at attic access doors, door and window heads, jambs, and sills, band joists, and headers. Cover these insulated cracks with vapor retarder material and tape all joints with pressure sensitive tape to provide air and vapor tightness.

3.2.1.7 Insulation without Affixed Vapor Retarder

a. Provide snug friction fit to hold insulation in place. Stuff pieces of insulation into cracks between trusses, joists, studs and other framing, such as at attic access doors, door and window heads, jambs, and sills, band joists, and headers.

3.2.1.8 Sizing of Blankets

a. Provide only full width blankets when insulating between trusses, joists, or studs. Size width of blankets for a snug fit where trusses, joists or studs are irregularly spaced.

3.2.1.9 Special Requirements for Ceilings

a. Place insulation under electrical wiring occurring across joists. Pack insulation into narrowly spaced framing. Do not block flow of air through soffit vents. Attach insulation to attic door by adhesive or staples if required or indicated.

3.2.1.10 Installation of Sill Sealer

a. Size sill sealer insulation and place insulation over top of masonry or concrete perimeter walls or concrete perimeter floor slab on grade. Fasten sill plate over insulation.

3.2.1.11 Access Panels and Doors

a. Affix blanket insulation to access panels greater than one square foot and access doors in insulated floors and ceilings. Use insulation with same R-Value as that for floor or ceiling.

3.2.2 Installation of Separate Vapor Retarder

3.2.2.1 Apply continuous vapor retarder as indicated. Overlap joints at least 6 inches and seal with pressure sensitive tape. Seal at sill, header, windows, doors and utility penetrations. Repair punctures or tears with pressure sensitive tape.

END OF SECTION 07 21 16

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QSEU 09-0402

07 21 16-1