All of our information is sourced from manufacturer data.

R-Tech VI (40 PSI)

Insulfoam, a Carlisle Company

R-Tech VI (40 PSI)

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Board Insulation Board Insulation

Foam Board Foam Board

EPS (Expanded Polystyrene) EPS (Expanded Polystyrene)

Exterior Subterranean Wall, Roof, Sloped Ceiling Exterior Subterranean Wall, Roof, Sloped Ceiling

Design Options

Product Description

R-Tech is engineered rigid insulation consisting of a superior closed-cell, lightweight and resilient expanded polystyrene (EPS) with advanced polymeric laminate facers. R-Tech has excellent dimensional stability, compressive strength, and water resistance properties. R-Tech is an ENERGY STAR qualified insulation and can contribute towards LEED credits. Also available as fanfold insulation.



Standard Sizes: 4' 0"


Standard Sizes: 8' 0"


Standard Sizes: 0-1/2", 0-3/4", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4", 2-1/2", 2-3/4", 3", 3-1/4", 3-1/2", 3-3/4", 4", 4-1/4", 4-1/2", 4-3/4", 5"

Performance Data

R-Value Per Inch

Measure of the thermal resistance of the product per inch of thickness, imperial units.

°F·ft^2·h / BTU / inch


NRC Value

The Noise Reduction Coefficient values of this product

Fire Resistance

Amount of time the product can withstand fire

Product Density

lbs / ft^3


Compressive Strength



Dimensional Stability

The percent that a product's dimensions vary due to aging or environmental conditions.



Smoke Development

As defined by the ASTM E84 testing standard

150, 300

Flame Spread

As defined by the ASTM E84 testing standard



Measure of the thermal resistance of the product, imperial units.

°F·ft^2·h / BTU

5.05, 6.14, 7.3, 8.63, 9.75, 10.68, 11.8, 12.93, 14.05

Water Vapor Transmission

An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury

perm (imperial)


Insulfoam, a Carlisle Company