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Homasote Co.
Recycled Building Products\Thermasote Nailbase Roof-Insulation
Thermasote Nailbase Roof Insulation
Recycled Building Products\Thermasote Nailbase Roof-Insulation
INSTALLATION
INSTRUCTIONS |
PRODUCT PRESENTATION
THERMASOTE® is a composite of strong, asbestos-free, insulating, weather resistant, nailable 440 Homasote® plus isocyanurate foam and a bottom facer of glass fiber reinforced felt, fibrous glass, or foil. Thermasote is Underwriters Laboratories Classified, as listed in Report #R13614, as a Shingle Decking Accessory for Class A, B, or C shingles.
NCFR®/THERMASOTE® is a composite of strong, asbestos-free, insulating, weather-resistant, nailable UL Class "A" NCFR® Homasote plus an isocyanurate foam core with a glass fiber reinforced facer, for use in FM approved Class 1 construction as listed in Factory Mutual Report #J.I.-1JOA9.AM.
MATERIAL SPECIFICATIONS
THERMASOTE® and NCFR® / THERMASOTE®
Size: 4' x 8' (Nominal)
Overall Nominal Thickness (inches) |
2.0 |
2.5 |
3.0 |
4.0 |
Nominal Foam Thickness (inches) |
1.5 |
2 |
2.5 |
3.5 |
Nominal Weight (pounds/ ft.2) |
1.5 |
1.6 |
1.8 |
2.1 |
R-Factor AGED |
11.1 |
14.4 |
18.2 |
27.0 |
NOTE: Also available in 1.5" thickness (R-7.2) and 3.5" thickness (R- 22.5) in minimum 3 trailer load quantities.
The thermal value of this product was determined in accordance with the TIMA conditioning procedure as outlined in PIMA Technical Bulletin 101.
READ THIS BEFORE YOU BUY The charts shown in this brochure indicate the R-value of the insulation. R means resistance to heat flow. The higher the R- value, the greater the insulating power. Compare insulation R-values before you buy. There are other factors to consider The amount of insulation you need depends mainly on the climate you live in. Also, your fuel savings from insulation will depend upon the climate, the type and size of your building, the amount of insulation already in your building, and your fuel use patterns. If you buy too much insulation, it will cost you more than you'll save on fuel. To get the marked R-value, it is essential that this insulation be installed properly. |
Code Compliances
THERMASOTE® and NCFR®/THERMASOTE® conform to Federal Specification HH-1-1972/GEN. NCFR®/THERMASOTE® is Factory Mutual approved for Class 1 construction.
TYPICAL PHYSICAL PROPERTIES
Property |
Test Method |
Result |
Dimensional Stability (foam) |
150°F |
less than 2% linear change |
Compressive Strength |
ASTM D-1621 |
20-25 |
Nominal Foam Density |
ASTM D-1622 |
2.0 |
Moisture Absorption |
ASTM C -209 |
1 |
Moisture
Vapor |
ASTM E-96 |
1.0 (Perm - in) |
FIRE RESISTANCE RATINGS
THERMASOTE®
Isocyanurate foam-Flame Spread 25-Smoke Density 250. Tested according to ASTM E-84 (80).
Homasote substrate - Flame Spread - Class III (or C)
NCFR® /THERMASOTE®
has both an isocyanurate foam core and a fire-retardant
nail base substrate that carries a Class A (0-25) Flame
Spread Rating [ASTM E- 84 (80)] and is approved for
use in FM-1 construction.
WARNING: While the Homasote® portion of the THERMASOTE® or NCFR®/THERMASOTE® panel provides a satisfactory nail base, the isocyanurate (an organic material) will decompose above 450°F and will ignite and burn at 600°F-700°F or when exposed to open flame. Therefore, the isocyanurate side should not be exposed.
ARCHITECTURAL SPECIFICATION (Short Form)
THERMASOTE®
All nail base insulating roof panels shown in drawing shall
be_________ thick THERMASOTE® as manufactured
by the Homasote Company, West Trenton, NJ, and
installed in accordance with current Homasote Company
instructions.
NCFR® /THERMASOTE®
All nail base insulating roof panels shown in drawings
shall be_________ thick FM-1 approved and listed
NCFR® /THERMASOTE® as manufactured by the
Homasote Company, West Trenton, NJ, and shall be
installed in accordance with current instructions issued by
Homasote Company.
PACKAGING, STORAGE & PROTECTION
THERMASOTE® & NCFR® /THERMASOTE® come to the job site in weather-resistant, plastic covered units. However, all materials should be stored at job site above ground on wooden pallets and covered by tarpaulins. Packaging material is not intended for exterior job site protection.
INSTALLATION REQUIREMENTS
Moisture protection is the responsibility of the contractor THERMASOTE® & NCFR® /THERMASOTE® Panels must be protected from weather and/or standing water at all times. No moisture from any source should be sealed into a roof system. Roofing felts, insulation, or vapor retarders that become wet or water- laden during construction should be removed and replaced before the application of finish roofing materials.
Vapor retarders in general are based on many and varied factors. They shall or shall not be used depending on architectural or engineering evaluation of existing conditions. However, a vapor retarder is required over newly poured structural concrete as well as lightweight insulating concrete decks. Vapor retarders are generally recommended in areas of the country where the average mean temperature in January is less than 40°F and the relative humidity in the building is greater than 45%. If a vapor retarder is needed in your area, it should be added to your roof system by applying No. 30 felt or 4 or 6 mil polyethylene film over the structural decking before application of THERMASOTE® or NCFR® /THERMASOTE® . Care should be taken to assure that the joints of vapor retarder are overlapped 4 to 6 inches and all tears/holes are repaired.