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Member, USGBC
THERMASOTE® and N.C.F.R.® THERMASOTEa®
NAILBASE ROOF INSULATION

Thermasote® is a composite of strong, asbestos-free, insulating, weather-resistant, nailable 440 Homasote plus polyisocyanurate foam and a bottom facer of asphalt-saturated felt, fibrous glass, or foil.

N.C.F.R.® Thermasotea® is Class A composite of strong, asbestos-free, insulating, weather-resistant, nailable N.C.F.R. Homasote plus polyisocyanurate foam and a bottom facer of asphalt-saturated felt, fibrous glass, or foil.

Uses The Thermasote family of nailbase insulation is designed 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 requires that they be installed over a nail base substrate. It can also be used as a sound deadening component in ceilings and floors.

Thermasote® Nailbase Roof Insulation Product Size Chart

Thermasote® Nailbase Roof Insulation Specification Data Charts

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WARNING: While the Homasote portion of the Thermasote panel provides a satisfactory nail base, the polyisocyanurate will decompose above 450°F and will ignite and burn at 600°F to 700°F or when exposed to open flame. Therefore, the polyisocyanurate side should not be exposed.

Code Compliances
Thermasote conforms to Federal Specifications HH-I-1972/GEN.
State of California License NO. TD 1090
BOCA #84-65
ICBO #1016
SBCC #8653