All of our information is sourced from manufacturer data.
Atlas Molded Product
ThermalStar Insulation Board 40 (Wall)
WRB (Weather/Water Resistant Barrier)
Factory Applied (Integral Sheathing)
Sloped Roof, Wall
Standard Sizes: 4' 0"
Standard Sizes: 8"
Standard Sizes: 0-1/2", 0-3/4", 1", 1-1/16", 1-5/16", 1-1/2", 2", 2-3/16", 2-5/16", 2-3/8", 2-1/2", 2-9/16", 3", 3-9/16", 4"
Manufacturer Design Notes
ThermalStar Insulation Board is available in multiple standard thicknesses, ranging from 1/2” up to 4”. Other thicknesses available upon request.
Rate of airflow through the barrier per square foot at a specified pressure difference
Product Weight Per Area
Roll Tensile Strength
Weight needed to break the roll, per inch of width
Water Vapor Transmission
An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury
Measure of the thermal resistance of the product, imperial units.
°F·ft^2·h / BTU
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