36C24919R0050-0004003.pdf

A/E Renovate Bldg. 28 for Specialty Care VA #249-16-C-0083

Lexington VA Medical Center

Lexington, KY HDG #15018

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SECTION 07 21 13

THERMAL INSULATION

PART 1 - GENERAL

1.1 DESCRIPTION:

A. This section specifies thermal and acoustical insulation for buildings.

B. Acoustical insulation is identified by thickness and words "Acoustical

Insulation".

1.2 RELATED WORK

A. Safing insulation: Section 07 84 00, FIRESTOPPING.

1.3 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Insulation, each type used

2. Adhesive, each type used.

3. Tape

C. Certificates: Stating the type, thickness and "R" value (thermal resistance) of the insulation to be installed.

1.4 STORAGE AND HANDLING:

A. Store insulation materials in weathertight enclosure.

B. Protect insulation from damage from handling, weather and construction operations before, during, and after installation.

1.5 APPLICABLE PUBLICATIONS:

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

B. American Society for Testing and Materials (ASTM):

C552-07.................Cellular Glass Thermal Insulation.

C553-08.................Mineral Fiber Blanket Thermal Insulation for

Commercial and Industrial Applications

C578-10.................Rigid, Cellular Polystyrene Thermal Insulation

C591-09.................Unfaced Preformed Rigid Cellular

Polyisocynurate Thermal Insulation

C612-10.................Mineral Fiber Block and Board Thermal

Insulation

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C665-06.................Mineral Fiber Blanket Thermal Insulation for

Light Frame Construction and Manufactured

Housing

C726-12.................Standard Specification for Mineral Wool, ASTM

International, West Conshohocken, PA, 2012

C728-05 (R2010).........Perlite Thermal Insulation Board

C954-10.................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

C1002-07................Steel Self-Piercing Tapping Screws for the

Application of Gypsum Panel Products or Metal

Plaster Bases to Wood Studs or Steel Studs

D312-00(R2006)..........Asphalt Used in Roofing

E84-10..................Surface Burning Characteristics of Building

Materials

F1667-11................Driven Fasteners: Nails, Spikes and Staples.

PART 2 - PRODUCTS

2.1 INSULATION – GENERAL:

A. Where thermal resistance ("R" value) is specified or shown for insulation, the thickness shown on the drawings is nominal. Use only insulation with actual thickness that is not less than that required to provide the thermal resistance specified.

B. Where "R" value is not specified for insulation, use the thickness shown on the drawings.

C. Where more than one type of insulation is specified, the type of insulation for each use is optional, except use only one type of insulation in any particular area.

D. Insulation Products shall comply with following minimum content standards for recovered materials:

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Material Type Percent by Weight

Perlite composite board 23 percent post consumer recovered paper

Polyisocyanurate/polyurethane

Rigid foam 9 percent recovered material

Foam-in-place 5 percent recovered material

Glass fiber reinforced 6 percent recovered material

Phenolic rigid foam 5 percent recovered material

Rock wool material 75 percent recovered material

The minimum-content standards are based on the weight (not the volume) of the material in the insulating core only.

2.2 MASONRY CAVITY WALL INSULATION – NOT USED

2.3 PERIMETER INSULATION IN CONTACT WITH SOIL – NOT USED

2.4 EXTERIOR FRAMING OR FURRING INSULATION – NOT USED

2.5 ACOUSTICAL INSULATION:

A. Mineral Fiber Batt or Blankets: ASTM C665. Maximum flame spread of 25 and smoke development of 450 when tested in accordance with ASTM E84.

B. Mineral Wool Batt or Blankets: ASTM C726. Maximum flame spread of 25 and smoke development of 450 when tested in accordance with ASTM E84.

C. Thickness as shown; of widths and lengths to fit tight against framing.

2.6 SOUND DEADENING BOARD– NOT USED

2.7 RIGID INSULATION– NOT USED

2.8 MASONRY FILL INSULATION – NOT USED

2.9 FASTENERS:

A. Staples or Nails: ASTM F1667, zinc-coated, size and type best suited for purpose.

B. Screws: ASTM C954 or C1002, size and length best suited for purpose with washer not less than 50 mm (two inches) in diameter.

C. Impaling Pins: Steel pins with head not less than 50 mm (two inches) in diameter with adhesive for anchorage to substrate. Provide impaling pins of length to extend beyond insulation and retain cap washer when washer is placed on the pin.

2.10 ADHESIVE:

A. As recommended by the manufacturer of the insulation.

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B. Asphalt: ASTM D312, Type III or IV.

C. Mortar: ASTM C270, Type 0.

2.11 TAPE:

A. Pressure sensitive adhesive on one face.

B. Perm rating of not more than 0.50.

2.12 RADIANT BARRIERS:

A. Sheet Radiant Barriers: ASTM C 1313 and as follows:

1. Sheet Construction: Foil on both sides of substrate.

2. Surface-Burning Characteristics: Maximum flame-spread and smoke-developed indexes of 5 and 10, respectively.

3. Sheet Width: Manufacturer’s standard.

B. Interior Radiation Control Coating System: Silver-colored, not thickness-dependent, low-emissivity, water-based coating; formulated for adherence to substrates indicated and with a surface emittance value of 0.25 or less as measured per ASTM C 1371.

PART 3 - EXECUTION

3.1 INSTALLATION - GENERAL

A. Install insulation with the vapor barrier facing the heated side, unless specified otherwise.

B. Install rigid insulating units with joints close and flush, in regular courses and with cross joints broken.

C. Install batt or blanket insulation with tight joints and filling framing void completely. Seal cuts, tears, and unlapped joints with tape.

D. Fit insulation tight against adjoining construction and penetrations, unless specified otherwise.

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3.2 MASONRY CAVITY WALLS – NOT USED

3.3 PERIMETER INSULATION – NOT USED

3.4 EXTERIOR FRAMING OR FURRING BLANKET INSULATION

A. Spray-applied insulation: apply spray-applied insulation according to manufacturer's written instructions. Do not apply insulation until installation of pipes, ducts, conduits, wiring, and electrical outlets in walls is completed and windows, electrical boxes, and other items not indicated to receive insulation are masked. After insulation is applied, make flush with face of studs by using method recommended by insulation manufacturer.

B. Miscellaneous Voids: Install insulation in miscellaneous voids and cavity spaces where required to prevent gaps in insulation using the following materials:

1. Spray Polyurethane Insulation: Apply according to manufacturer's written instructions.

3.5 RIGID INSULATION ON SURFACE OF EXTERIOR WALLS, FLOORS, AND UNDERSIDE OF

FLOORS:

A. On the exterior face of solid masonry and concrete walls, beams, beam soffits, underside of floors, and to the face of studs for interior wall finish where shown.

B. Bond to solid vertical surfaces with adhesive as recommended by insulation manufacturer. Fill joints with adhesive cement.

C. Use impaling pins for attachment to underside of horizontal surfaces.

Space fastenings as required to hold insulation in place and prevent sagging.

3.6 MASONRY FILL INSULATION – NOT USED

3.7 ACOUSTICAL INSULATION:

A. Fasten blanket insulation between metal studs and wall furring with continuous pressure sensitive tape along edges or adhesive.

B. Pack insulation around door frames and windows and in cracks, expansion joints, control joints, door soffits and other voids. Pack behind outlets, around pipes, ducts, and services encased in wall or partition. Hold insulation in place with pressure sensitive tape or adhesive.

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

D. Where acoustical insulation is installed above suspended ceilings install blanket at right angles to the main runners or framing. Extend insulation over wall insulation systems not extending to structure above.

E. Where semirigid insulation is used which is not full thickness of cavity, adhere to one side of cavity maintaining continuity of insulation and covering penetrations or embedments in insulation.

F. Where sound deadening board is shown, secure with adhesive to masonry or concrete walls and with screws to metal or wood framing. Secure sufficiently in place until subsequent cover is installed. Seal all cracks with caulking.

3.8 INSTALLATION OF RADIANT BARRIERS:

A. Install interior radiation control sheeting or coating system according to ASTM C 1321 to fully conceal all exposed spray-applied foam insulation.

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