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Homasote Co.
Recycled Building Products\Roof Deck
Thermasote - Nail Base Roof Insulation - page 2
Recycled Building Products\Roof Deck
NAIL BASE ROOF INSULATION |
® |
USES
THERMASOTE® is a nail base insulation board combined with isocyanurate foam for application over Homasote Roof Decking, wood, or other structural decking to provide insulation and energy conservation. It is particularly useful as roof insulation in exposed beam systems where the most efficient location of this insulation is above the structural deck, and the use of asphalt, fiberglass or wood shingles, slate or tile require that they be installed over a nail base substrate.
Thermasote is Underwriters Laboratories Classified, as listed in Report #R13614, as a Shingle Decking Accessory for Class A, B, or C shingles.
SIZES, WEIGHTS & THERMAL RESISTANCE
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.
Thermal value of this product was determined in accordance with the TIMA conditioning procedure as outlined in RIC/TIMA Technical Bulletin 281-1.
PHYSICAL PROPERTIES
Property |
Test Method |
Result |
Dimensional Stability (foam) |
150°F |
less than 2% linear change |
Compressive Strength |
ASTM D-1621 |
25 |
Nominal Foam Density |
ASTM D-1622 |
2.0 |
Moisture Absorption |
ASTM C-209 |
1 |
Moisture Vapor Transmission |
ASTM C-355 |
1.0 (Perm-in) |
FIRE RESISTANCE RATINGS
Isocyanurate foam-Flame Spread 50-Smoke Developed 205. Homasote Substrate-Flame Spread-Class III (or C). Tested according to ASTM E-84 (80).
(For Factory Mutual approved and listed nail base roof insulation see NCFR®/THERMASOTE.®)
WARNING: While the Homasote® portion of the 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.
CODE COMPLIANCES
THERMASOTE® conforms to Federal Specification H
H-1-1 972/GEN.
Metropolitan Dade County #84-0626.1
State of California License No. TO 1090
BOCA #84-65
ICBO #1016
SBCC #8653
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 what you'll save on fuel. To get the marked R-value, it is essential that this insulation be installed properly. |
ARCHITECTURAL SPECIFICATION
(Short form)
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.
FASTENING SPECIFICATIONS
Thermasote® can be applied to most types of structural decking including Homasote, Wood, Metal, Structural Concrete, and Cementitious or other Fiber Decks. For detailed fastening specifications refer to installation instruction sheet #T-8-132-5.
ROOFING APPLICATION
Most types of finish roofing materials can be applied directly to Thermasote including Asphalt/Fiberglass Shingles, Wood Shingles or Shakes, Roofing Tiles or Slate, Built up roofing, Single ply membranes and Metal Roofing. For detailed application specifications refer to installation instructions sheet #T-8-132-5.
INSTALLATION REQUIREMENTS
Moisture protection is the responsibility of the contractor. Thermasote® 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.
PACKAGING, STORAGE AND PROTECTION
Thermasote® comes 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.
AVAILABILITY
Homasote products, samples and technical literature are available throughout the United States and Canada. Contact your local building material dealer, roofing distributor, or write to Homasote Company, P.O. Box 7240, West Trenton, NJ 08628-0240.
