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ASTM C665 requirements include the following test methods:
- ASTM C518 - Thermal Resistance (R-Value)
- ASTM E84 - Surface Burning
- ASTM E970 - Critical Radiant Flux
- ASTM E96 - Water Vapor Permeance
- ASTM C665 - also includes
ASTM C687 - Thermal Resistance (R-Value)
- ASTM C1304 - Odor Emission Sect. 13-8 Corrosiveness
- ASTM C1338 - Fungi Resistance
- ASTM C1104/C1104M - Test Method: Water Vapor Absorption
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ASTM C764 requirements include the following test methods:
- ASTM C518 - Thermal Resistance (R-Value)
- ASTM E136 - Combustion Characteristics
- ASTM E970 - Critical Radiant Flux
- ASTM C553 - Moisture Absorption, Odor Emission, Corrosiveness and Loss on Ignition
- ASTM C1304 - Odor Emission Sect. 13-8 Corrosiveness
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Fiberglass insulation is made from mineral substances processed from molten state to an incombustible fibrous form.
Facings Facts
- Standard facings will burn and should not be left exposed.
- Residential facing should always be installed to the warm (heated) side of the dwelling for vapor barrier application.
- Vapor barriers must have a rating of 1 perm or less.
Sound Facts
- Fiberglass insulation increases the sound transmission class (STC) rating when properly installed in building assemblies. It has been determined that thickness has greater value in sound control than density.
R-Value
- R-Value means resistance to heat flow. The higher the R-value the greater the insulating value.
Flame Spread, Combustion, and Federal Testing
- Unfaced fiberglass blankets, unfaced metal building insulation, metal building insulation, FSK 25 and loose-fill insulation have a class "A" flame spread rating of 25 or less and smoke developed rating of 50 or less according to ASTM E84 test method.*
- Unfaced fiberglass blankets, unfaced metal building insulation, and loose-fill insulation have been tested and passed the requirements of ASTM E136 combustion characteristics and are considered non-combustible by major building codes. All unfaced products meets Underwriters Laboratories fire design BZJZ and BKNV.
- Metal building insulation has been tested and complies with ASTM C991.**
Recycled Glass Content
- Guardian Fiberglass products contain 30% post consumer recycled glass and 5% post industrial recycled glass.
Additional Certifications
- Miami-Dade County, Florida code compliance for fiberglass batt, blanket, and loose-fill, NO.00-0801.06.
- City of New York, Department of Building Code Compliance for unfaced fiberglass thermal insulation code sections 27-232 and 27-348 non-combustibility.
- State of California Bureau of Home Furnishings and Thermal Insulation certification product listing license #TA1275.
- Compliance with City of Los Angeles, CA requirements for thermal insulations.
- Minnesota Insulation Standards Program.
- National Standard of Canada CAN/ULC-S702-97 for preformed and loose-fill insulations.
- National Research Council Canada CCMC Evaluation listings for batt and loose-fill.
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