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  • Foam Board Insulation .75 in x 4 ft x 8 ft R-3.8 GPS ProBoard

Foam Board Insulation .75 in x 4 ft x 8 ft R-3.8 GPS ProBoard (10 PSI)


As low as $22.85/pc.

ProBoard Insulating Sheathing

Nearly 25% of your home’s wall is made up of studs that typically are not insulated, so it’s like having one entire wall of your home with no insulation. Adding insulation to your home’s exterior under new siding can help your home meet U.S. Department of Energy (DOE) insulation recommendations, as well as state and local codes.

Pricing Breakdown:
Quantity: Price Per:
1 – 127 $24.78
128+ $22.85

Additional Information


0.75 in




8 ft


4 ft

Edge Type


R Value




Minimum Compressive Strength (psi)


Product Description

ProBoard® Foam Board Insulation .75 in x 4 ft x 8 ft R-3.8 GPS

.75 in. x 4 ft. x 8 ft. R-3.8 GPS Squared Edge Insulation Sheathing

Typical Homes Lose Up To: 10% through windows 15% through doors 15% through foundation 25% through the roof 35% through un-insulated walls! Neopor® has similar properties to EPS, but contains high-purity graphite particles which reflect heat as it passes through the insulation, slowing it down. This graphite gives our Premium Series insulation its super-efficiency and dark gray color. ProBoard® Goes Beyond Energy Savings • Levels the wall under new siding, providing a consistent, stable base for siding to be installed smooth and straight. • Deters termite infestation with a built-in termite control agent. • Protected by a Lifetime Transferrable product warranty, one of the strongest in the industry, covering r-value retention, moisture absorption, and structural integrity


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