Equipped with a fiberglass-reinforced foam core, Thermax™ Light Duty Insulation combines long-term thermal resistance with facers that prevent water and water vapor intrusion.
DuPont™ Thermax™ Light Duty Insulation is designed as an insulation and interior finish system for walls and ceilings in metal, wood post frame and concrete or masonry buildings, as governed by building codes. Thermax™ Light Duty consists of a glass-fiber-reinforced polyisocyanurate foam core faced with nominal 1.25 mil embossed white thermoset-coated aluminum on one side and 1.25 mil embossed aluminum on the other. The tough 1.25 mil white embossed aluminum surface makes it a durable insulation/finish choice for use in moderate-impact areas, and it can be pressure-washed up to 2,000 psi with a 15-degree or greater spray tip (at 3’ minimum distance).
|Easy to cut, handle, and install||
|Compressive Strength1||ASTM D1621||psi, min.||25|
|Water Absorption||ASTM C209||% by volume, max.||0.1|
|Water Vapor Permeance||ASTM E96||perm, max||<0.03|
|Maximum Use Temperature||-||°F||250|
|Flexural Strength||ASTM C203||psi, min.||55|
|Light Reflectance, Visual Light Spectrophotometer||-||%||65|
1 Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first
|Thickness (in)||R-Value||Board Size (ft)||Edge Treatment|
|0.5||3.3||4 x 8, 4 x 12||Square Edge|
|.75||5.0||4 x 8, 4 x 12||Square Edge|
|1.0||6.5||4 x 8, 4 x 12||Square Edge|
|1.55||9.8||4 x 8, 4 x 12||Square Edge, Shiplap|
|2.0||13.0||4 x 8, 4 x 12||Square Edge, Shiplap|