VA 07 21 13-2012 THERMAL INSULATION.pdf

1、06-01-12 07 21 13 - 1 SECTION 07 21 13 THERMAL INSULATION MODIFICATION 06-01-12 UPDATE OF STANDARDS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 2 SECTION 07 21 13 THERMAL INSULATION SPEC WRITER NOTE: Delete between /_/ if not

2、applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. 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 “Acoust

3、ical Insulation“. 1.2 RELATED WORK A. Insulating concrete systems: / Section 03 52 00, LIGHTWEIGHT CONCRETE ROOF INSULATION /. B. Insulation for insulated wall panels: Section 07 40 00, ROOFING AND SIDING PANELS. C. Insulation in connection with roofing and waterproofing: Section 07 22 00, ROOF AND

4、DECK INSULATION. D. Insulation for prefabricated metal buildings: Section 13 34 19, METAL BUILDING SYSTEMS. E. Safing insulation: Section 07 84 00, FIRESTOPPING. F. Insulation for refrigerators and freezers: Section 11 41 21, WALK-IN COOLERS AND FREEZERS / Section 11 53 23, LABORATORY REFRIGERATORS

5、/ Section 11 78 13, MORTUARY REFRIGERATORS/. 1.3 SUBMITTALS: A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES . B. Manufacturers Literature and Data: 1. Insulation, each type used 2. Adhesive, each type used. 3. Tape C. Certificates: Stating the type, thickness

6、 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. Provided by IHSNot fo

7、r ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 3 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. Ameri

8、can Society for Testing and Materials (ASTM): C270-10 Mortar for Unit Masonry C516-08 Vermiculite Loose Fill Thermal Insulation C549-06 Perlite Loose Fill Insulation C552-07 Cellular Glass Thermal Insulation. C553-08 Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications

9、 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 C665-06 Mineral Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing C728-05

10、(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 Produ

11、cts 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. SPEC WRITER NOTE: 1. Make material requirements agree with applicable requirements s

12、pecified in the referenced Applicable Publications applies to the project. 2. Determine “R“ value required, based on U value used for design by HVAC. Generally indicate “R“ value required for thermal insulation on drawings in lieu of thickness and specify only Provided by IHSNot for ResaleNo reprodu

13、ction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 4 these insulations which will meet the “R“ value for thickness shown in space available. Allow options where possible. 3. Do not use cellular plastic insulation exposed to the interior. Separate the insulation from the i

14、nterior by at least a 15 minute fire separation. If no separation is provided, select cellular glass block insulation. 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 insu

15、lation 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 op

16、tional, except use only one type of insulation in any particular area. D. Insulation Products shall comply with following minimum content standards for recovered materials: Material Type Percent by Weight Perlite composite board 23 percent post consumer recovered paper Polyisocyanurate/polyurethane

17、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 volu

18、me) of the material in the insulating core only. 2.2 MASONRY CAVITY WALL INSULATION: A. Mineral Fiber Board: ASTM C612, Type II, faced with a vapor retarder having a perm rating of not more than 0.5. B. Polyurethane or Polyisocyanurate Board: ASTM C591, Type I, faced with a vapor retarder having a p

19、erm rating of not more than 0.5. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 5 C. Polystyrene Board: ASTM C578, Type X. D. Perlite Board: ASTM C728. E. Cellular Glass Block: ASTM C552, Type I or IV. 2.3 PERIMETER INSULATION IN

20、 CONTACT WITH SOIL: A. Polystyrene Board: ASTM C578, Type IV, V, VI, VII, or IX where covered by soil or concrete. B. Cellular Glass Block: ASTM C552, Type I or IV. 2.4 EXTERIOR FRAMING OR FURRING INSULATION: A. Batt or Blanket: Optional. B. Mineral Fiber: ASTM C665, Type II, Class C, Category I whe

21、re framing is faced with gypsum board. C. Mineral Fiber: ASTM C665, Type III, Class A where framing is not faced with gypsum board. 2.5 ACOUSTICAL INSULATION: A. Mineral Fiber boards: ASTM C553, Type II, flexible, or Type III, semirigid (4.5 pound nominal density). B. Mineral Fiber Batt or Blankets:

22、 ASTM C665. 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: A. Mineral Fiber Board: ASTM C612, Type IB, 13 mm (1/2 inch thick). B. Perlite Board: AST

23、M C728, 13 mm (1/2 inch thick). 2.7 RIGID INSULATION: A. On the inside face of exterior walls, spandrel beams, floors, bottom of slabs, and where shown. B. Mineral Fiber Board: ASTM C612, Type IB or 2. C. Perlite Board: ASTM C728. D. Cellular Glass Block: ASTM C552, Type I. 2.8 MASONRY FILL INSULATI

24、ON: A. Vermiculite Insulation: ASTM C516, Type II. B. Perlite Insulation: ASTM C549, Type IV. 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 (tw

25、o 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 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 6 pins of length

26、 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. 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 n

27、ot more than 0.50. 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

28、 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. 3.2 MASONRY CAVITY WALLS: A. Mount insulation on exterior faces of inner wythes of

29、masonry cavity walls and brick faced concrete walls. Fill joints with same material used for bonding. B. Bond polystyrene board to surfaces with adhesive or Portland cement mortar mixed and applied in accordance with recommendations of insulation manufacturer. C. Bond mineral fiberboard, polyurethan

30、e or polyisocyanurate board, and perlite board to surfaces with adhesive as recommended by insulation manufacturer. D. Bond cellular glass insulation to surfaces with hot asphalt or adhesive cement. 3.3 PERIMETER INSULATION: A. Vertical insulation: 1. Fill joints of insulation with same material use

31、d for bonding. 2. Bond polystyrene board to surfaces with adhesive or Portland cement mortar mixed and applied in accordance with recommendations of insulation manufacturer. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 7 3. Bon

32、d cellular glass insulation to surfaces with hot asphalt or adhesive cement. B. Horizontal insulation under concrete floor slab: 1. Lay insulation boards and blocks horizontally on level, compacted and drained fill. 2. Extend insulation from foundation walls towards center of building not less than

33、600 mm (24 inches) or as shown. 3.4 EXTERIOR FRAMING OR FURRING BLANKET INSULATION: A. Pack insulation around door frames and windows and in building expansion joints, door soffits and other voids. Pack behind outlets around pipes, ducts, and services encased in walls. Open voids are not permitted.

34、Hold insulation in place with pressure sensitive tape. B. Lap vapor retarder flanges together over face of framing for continuous surface. Seal all penetrations through the insulation. C. Fasten blanket insulation between metal studs or framing and exterior wall furring by continuous pressure sensit

35、ive tape along flanged edges. D. Fasten blanket insulation between wood studs or framing with nails or staples through flanged edges on face of stud. Space fastenings not more than 150 mm (six inches) apart. E. Roof Rafter Insulation or Floor Joist Insulation: Place mineral fiber blankets between fr

36、aming to provide not less than a 50 mm (two inch) air space between insulation and roof sheathing or subfloor. F. Ceiling Insulation and Soffit Insulation: 1. Fasten blanket insulation between wood framing or joist with nails or staples through flanged edges of insulation. 2. At metal framing or cei

37、lings suspension systems, install blanket insulation above suspended ceilings or metal framing at right angles to the main runners or framing. Tape insulation tightly together so no gaps occur and metal framing members are covered by insulation. 3. In areas where suspended ceilings adjoin areas with

38、out suspended ceilings, install either blanket, batt, or mineral fiberboard extending from the suspended ceiling to underside of deck or slab above. Secure in place to prevent collapse or separation of hung blanket, batt, or board insulation and maintain in vertical position. Secure blanket or batt

39、with continuous cleats to structure above. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 8 3.5 RIGID INSULATION ON SURFACE OF EXTERIOR WALLS, FLOORS, AND UNDERSIDE OF FLOORS: A. On the interior face of solid masonry and concrete

40、 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 horizonta

41、l surfaces. Space fastenings as required to hold insulation in place and prevent sagging. D. Fasten board insulation to face of studs with screws, nails or staples. Space fastenings not more than 300 mm (12 inches) apart. Stagger fasteners at joints of boards. Install at each corner. E. Floor insula

42、tion: 1. Bond insulation to concrete floors in attic by coating surfaces with hot steep asphalt applied at rate of not less than 11.5 Kg per m (25 lbs/100 sq. ft.), and firmly bed insulation therein. 2. When applied in more than one layer, bed succeeding layers in hot steep asphalt applied at the ra

43、te of not less than 11.5 Kg per m per m lbs/100 sq. ft.). 3. Contractors option: Insulation may be installed with nonflammable adhesive in accordance with the manufacturers printed instructions when a separate vapor retarder is used. 3.6 MASONRY FILL INSULATION: A. Pour fill insulation in / cavity /

44、 voids of masonry units / from tops of walls, or from sill where windows or other openings occur. B. Pour in lifts of not more than 6 m (20 feet). 3.7 ACOUSTICAL INSULATION: A. Fasten blanket insulation between metal studs and wall furring with continuous pressure sensitive tape along edges or adhes

45、ive. 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. C. Do not comp

46、ress insulation below required thickness except where embedded items prevent required thickness. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-06-01-12 07 21 13 - 9 D. Where acoustical insulation is installed above suspended ceilings install blanke

47、t 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

48、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. - - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-