A. ASTM C203: Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation

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1 SECTION THERMAL INSULATION PART 1 GENERAL 1.1 SUMMARY A. Section includes: 1. Perimeter Foundation Insulation. 2. Batt Insulation. 3. Vapor Barriers. B. Related Sections: Documents relating to the work of this section include, but are not limited to, the General Conditions, Supplementary Conditions, Sections of Division 1, and: 1. Section : Unit Masonry 2. Section : Rough Carpentry 3. Section : Acoustical Ceilings 1.2 REFERENCES (Refer Section ) A. ASTM C203: Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation B. ASTM C272: Standard Test Method for Water Absorption of Core Materials for Structural Sandwich Constructions C. ASTM C 665: Standard Specification for Mineral-Fiber Blanket Thermal Insulation. D. ASTM C 764: Standard Specification for Mineral Fiber Loose-Fill Thermal Insulation. E. ASTM D1621: Standard Test Method for Compressive Properties of Rigid Cellular Plastics F. ASTM D2126: Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging G. ASTM E 84: Standard Test Method for Surface Burning Characteristics of Building Materials. 1.3 SUBMITTALS (Refer Section ) A. Product Data: Submit manufacturer's literature describing the products to be used, showing compliance with specified requirements. Provide manufacturer s installation instructions. 1.4 PERFORMANCE REQUIREMENTS (Refer Section ) A. Fire-Test Characteristics: Identify materials with appropriate markings of applicable testing and inspecting agency. 1. Surface Burning Characteristics: ASTM E Fire-Resistance Ratings (fire-resistance-rated assembly): ASTM E84. B. Foam Plastic: Meet IBC/IRC, ICC-ES NER-699, BOCA-ES, and RR requirements. C. Identification: Mark Insulation with the following data: THERMAL INSULATION

2 1. R value per inch and the mean test temperature. 2. Manufacturer s name. 3. Insulation type and trade name. 4. UL rating - flame spread, fuel contribution, smoke developed (ASTM E84 and D1692) 1.5 QUALITY ASSURANCE (Refer Section ) A. Low-Emitting Materials: Air barriers shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." Assure that insulation is tested according to ASTM D 5116 and shown to emit less than 27-ppb formaldehyde. B. R-Values: The R values indicated are for the insulation tested in accordance with ASTM C518 at 75 degrees F mean temperature and 50 percent relative humidity for at least 6 months, for the total thickness of the insulation excluding surface resistance. C. Field Quality Assurance: Implement the ABAA Quality Assurance Program requirements. Cooperate with ABAA inspectors and independent testing and inspection agencies engaged by the Owner. Do not cover air barrier until it has been inspected, tested and accepted. D. Provide manufacturer s certification that their insulation complies with the specified requirements. E. Materials containing more than one percent asbestos will not be acceptable. 1.6 DELIVERY, STORAGE, HANDLING A. Insulation shall be legibly marked with the following data: 1. "R" value per inch and the mean test temperature. 2. Manufacturer's name. 3. Insulation type and trade name. 4. Water vapor transmission (perm inch average) 5. UL rating - flame spread, fuel contribution, smoke developed (ASTM E84 and D1692) B. Protect insulation materials from physical damage and from deterioration by moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer s written instructions for handling, storing, and protecting during installation. C. Deliver materials to site in manufacturer s original, unopened containers and packaging, with labels clearly identifying product name and manufacturer. D. Store materials in clean, dry area indoors. PART 2 PRODUCTS 2.1 COMPLIANCE A. All manufacturers listed herein without a designated product must comply with the requirements of the specification, and, additionally, with the requirements of a specific manufacturer s product if indicated. Products of other manufacturers will be considered for acceptance provided they equal or exceed the material requirements and functional qualities of the specification. Furnish the Substitution Request Form with complete technical data for evaluation for Architect s approval. Additional approved manufacturers will be issued by Addendum. Refer to Division 1. THERMAL INSULATION

3 2.2 PERIMETER INSULATION A. Description: ASTM C578, type VI, 1.8 lbs/cu.ft minimum density, 2" thick, rigid cellular extruded polystyrene, using hydrochlorofluorcarbons as blowing agents, minimum conditioned R-value of 75 o F, min. compressive strength of 40 PSI. B. Application: Insulation under slabs on grade, and foundation wall insulation. C. Manufacturers: 1. Dow Chemical Styrofoam 40 Brand High Load. 2. AMOCO. 3. Owens Corning. 2.3 CAVITY WALL INSULATION A. Refer to insulated sheathing described in Section UNFACED BATT AND BLANKET INSULATION A. Description: Un-faced Mineral Fiber Blanket Insulation combining glass, slag wool, or rock wool fibers with thermosetting resins to comply with ASTM C665, Type I (blankets without membrane facing), Class A, non-combustible, maximum flame spread and smoke developed values of 25 and 50, and with low VOC emission certified by GreenGuard Environmental Institute B. Application: For Concealed Applications, and where vapor barriers are used in conjunction with insulation. (In ceiling or attic spaces, contractor may use either a separate vapor barrier with unfaced batt, or foil-faced insulation specified below). C. Manufacturers: 1. Owens-Corning. 2. Johns-Manville. 3. Certainteed. 4. Rockwool Industries, Inc. 5. Casco Mineral Wool. 2.5 FACED BATT INSULATION A. Description: Faced Mineral Fiber Blanket manufactured from glass, slag wool, or rock wool fibers with thermosetting resins, 6 lbs/cu.ft., non-combustible, 3-1/2" (R11), 6" (R19), and 10 (R30) batts, with flame spread rating of 25 or less, and vapor retarder perm rating of 0.10 perms per ASTM E96, extra wide stapling flanges, and with Low VOC emission certified by GreenGuard Environmental Institute. 1. Foil-Faced and with reflective vapor retarder membrane facing, complying with ASTM C665, type III, Category 1, Class A. fire resistance: a. Foil scrim kraft (silver-faced FSK) OR b. Foil scrim polyethylene (white faced FSK) vapor retarder membrane on one face. 2. Kraft-Faced: Kraft Faced Batt Insulation, glass fiber thermal insulation complying with ASTM C 665, Type II, Class C. B. Application: For exposed applications. (Foil-faced when exterior wall or ceiling is not indicated to receive a separate vapor barrier). THERMAL INSULATION

4 C. Manufacturers: 1. Owens Corning. 2. Schuller. 3. U.S. Gypsum. 4. Certainteed. 5. Rockwool Industries, Inc. 2.6 FIRE SAFING A. Description: 3-1/2" thick un-faced mineral fiber safing insulation furnished with manufacturers standard Z- shaped impaling-clips, Impaling pins, and clinch shields, for mechanical attachment, where required (no adhesive application allowed). Furnish also aluminum support angles, sealing compound, and vapor retarder tape, as applicable or required. B. Manufacturers: 1. U.S. Gypsum Company "Thermafiber". 2. Owens Corning. 3. Schuller International. 2.7 MISCELANIOUS FILL INSULATION A. Description: Inorganic (non-asbestos) mineral wool insulation without facing, with flame spread rating of 15 or less, and a smoke development rating of 0 per ASTM E84. B. Application: Filling and stuffing openings in walls around pipes, structural components, windows, conduits, and expansion joints to eliminate noise transfer and to insulate. Use to seal top of interior walls, except fire rated walls, between masonry and roof deck, and where indicated. 2.8 VAPOR RETARDER (BARRIER) Note: Coordinate use of vapor retarder with installation of gypsum wallboard. (If foil backed gypsum wallboard is used the vapor retarder may be omitted). Use fire-retardant, reinforced-polyethylene vapor retarder where retarder is exposed. A. Fire-Retardant, Reinforced-Polyethylene Vapor Retarders: Two outer layers of polyethylene film laminated to an inner reinforcing layer consisting of either non-woven grid of nylon cord or polyester scrim and weighing not less than 22 lb/1000 sq. ft., with maximum permeance rating of perm and with flame-spread and smoke-developed indexes of not more than 5 and 60, respectively. 1. Raven Industries Inc. DURA-SKRIM 2FR. 2. Reef Industries, Inc. Griffolyn T-55 FR. B. Vapor-Retarder Tape: Pressure-sensitive tape of type recommended by vapor-retarder manufacturer for sealing joints and penetrations in vapor retarder. 2.9 AUXILIARY MATERIALS A. Eave Ventilation Troughs (Baffle Vents): Preformed, rigid fiberboard or Extruded polystyrene attic rafter vents designed and sized to fit between roof framing members to provide cross ventilation between insulated attic spaces and vented eaves. Provide free area of 25.5 sq. inches for 24 rafter spacing, and sq. inches for 12 spacing. Provide optional air stop/ insulation block at base. 1. Owens Corning "Raft-R-Mate. THERMAL INSULATION

5 2. Schuller. 3. Certainteed. B. Wire/Poultry Netting: 1 inch hexagonal, 20 gauge galvanized wire netting, used to support attic plenum insulation. PART 3 EXECUTION 3.1 GENERAL INSTALLATION A. Comply with insulation manufacturers written instructions applicable to products and application indicated. 1. Furnish adhesives or attaching means, if required, so that insulation material will be properly held in alignment and permanently attached. 2. Extend insulation in thickness indicated to envelop entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. 3. Apply single layer of insulation to product thickness indicated, unless otherwise noted. 4. Where interior walls extend to deck or roof, seal openings in walls between rooms above the ceiling with mineral wool placed or stuffed in openings to eliminate noise transfer and air movement. 5. Set vapor-retarder-faced units with vapor retarder to warm side of construction. 6. Maintain 3-inch clearance of insulation around recessed lighting fixtures. 7. Install eave ventilation troughs between roof framing members in insulated attic spaces at vented eaves. 8. Install perimeter insulation in accordance to details using an approved adhesive. Provide snug, tight joints. 9. Install rigid cavity insulation using approved adhesive with snug joints and coursed to accommodate the wall reinforcement. Where noted, apply joint sealant to all joints to achieve a continuous weathertight and watertight surface. 10. Where applicable, Install baffle vents between rafters or joists to assure free air flow from soffit or perimeter venting to roof ridge or attic vents. Attach air stop flap to bottom of perimeter per manufacturer s directions. 11. If water piping is located within insulated exterior walls, coordinate location of piping to ensure that it is placed on warm side of insulation and insulation encapsulates piping. 12. Where interior walls extend to deck or roof, seal all openings in walls between rooms above the ceiling with mineral wool placed or stuffed in openings to eliminate noise transfer and air movement. 3.2 INSTALLATION OF BATT INSULATION A. General: 1. Where more than one length is required to fill cavity, provide lengths that will produce a snug fit between ends. 2. Place blankets/batts in cavities formed by members to produce a friction fit between edges of insulation and adjoining framing members. 3. For metal-framed wall cavities where cavity heights exceed 96 inches support unfaced blankets mechanically. 4. Maintain 3-inch clearance of insulation around recessed lighting fixtures. 5. Stuff glass fiber loose fill insulation into miscellaneous voids and cavity spaces where shown. Compact to approximately 40 percent of normal maximum volume. 6. Repair punctures or tears in vapor retarder facing by taping. THERMAL INSULATION

6 B. Between Studs: 1. Unfaced Insulation: Friction fit insulation between framing members after cover material has been installed on one side of cavity. In applications without a cover material, use wire or metal straps to hold insulation in place. For metal-framed wall cavities where cavity heights exceed 96 inches support unfaced blankets mechanically. 2. Faced Insulation: Staple attachment flanges to face or side of framing member every 8 to 12 inches on verticals, every 6 to 8 inches on horizontals and slopes. 3. Install bottom-chord truss insulation using wire at 24 o.c, or specified wire netting. Tuck batts snuggly in place with no gaps. At eaves, staple insulation baffles in place per manufacturer s instructions. 4. If water piping is located within insulated exterior walls, coordinate location of piping to ensure that it is placed on warm side of insulation and insulation encapsulates piping. 3.3 INSTALLATION OF VAPOR RETARDERS (BARRIERS) A. General: Extend vapor retarder to extremities of areas to be protected from vapor transmission. Secure in place with adhesives or other anchorage system as indicated. Extend vapor retarder to cover miscellaneous voids in insulated substrates, including those filled with loose-fiber insulation. 1. Seal vertical joints in vapor retarders over framing by lapping not less than two wall studs. 2. Fasten vapor retarders to wood framing at top, end, and bottom edges, at perimeter of wall openings, and at lap joints. Space fasteners 16 inches O.C. 3. Seal joints caused by pipes, conduits, electrical boxes, and similar items penetrating vapor retarders with vapor-retarder tape to create an airtight seal between penetrating objects and vapor retarder. B. Repair tears or punctures in vapor retarders immediately before concealment by other work. Cover with vapor-retarder tape or another layer of vapor retarder. 3.4 INSTALLATION OF WALL SAFING A. Install safing Insulation of proper size in safe-off area between wall insulation and floor slabs, on safing clips spaced 24" o.c. maximum, leaving no voids. 1. Cut safing insulation 1/2" wider than opening to insure compression fit. 2. Fasten safing clips to slab with power activated fasteners or other positive fastening devices. 3. When safe-off area is less than 2" wide safing insulation may be friction fitted and topped with 1" of smoke seal compound. 3.5 COMPLETION A. Clean up all wrappings, scrap, and cut material waste at the end of each day s work. Refer Division 1 for additional requirements. B. Protect installed insulation and vapor retarders from damage due to harmful weather exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation. END OF SECTION THERMAL INSULATION