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Foam Sheathing Square Edge

Foam Sheathing Square Edge click to enlarge


Square Edge is an extruded polystyrene foam insulation board with square edges on four sides. Offers superior water resistance, long-term thermal performance and high compressive strength.

  • Complies with ASTM C 578 Type IV. Meets IBC/IRC requirements for foam plastic insulation.
  • Und. Lab. Inc. Classified, see Classification Certificate D369.
  • Factory Mutual Approved - Subject to the conditions of Approval as a roof insulation when installed as described in the current edition of the FM Approval Guide



Green Guard SE 1/2"X4X8 R 3.0 (GGS1248)
160 Pcs/Unit

Green Guard SE 3/4"X4X8 R 4 (GGS3448)
126 Pcs/Unit

Polar WeatherAll Pro 1/2"X4X8 R2.00 (POWP1248)
192 Pcs/Unit

Polar WeatherAll Pro 1"X4X8 R3.85 (POWP148)
96 Pcs/Unit

POWP3448: Polar WeatherAll Pro 3/4"X4X8 R2.92; click to enlarge
POWP3448: Polar WeatherAll Pro 3/4"X4X8 R2.92; click to enlarge
Polar WeatherAll Pro 3/4"X4X8 R2.92 (POWP3448)
128 Pcs/Unit

The color images shown may differ from the actual products due to variances in digital representation and printing technology.

Orders for Delivery

For scheduled delivery to your business or jobsite in the state of Michigan, northern Ohio, or northern Indiana using Wimsatt Building Materials' Professional Delivery service, call us at 800.497.9000.

Orders Shipped in the U.S.

For order items available for ground shipping anywhere in the continental U.S, place your order online here using the Add to Cart and Checkout buttons in the product catalog pages, and review our online order policies here.

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