GreenFiber Blow-In Insulation

Rmax Thermasheath
Polyisocyanurate Rigid Foam Insulation Board | Call For Pricing

This lightweight thermal insulation board has reinforced aluminum foil facers. Thermasheath®-3 is suitable for use in cavity walls, masonry walls, vaulted ceilings and some limited roofing applications, as well as many other building envelope continuous insulation applications. It is also an integral piece to maintaining the continuous insulation solution when Thermasheath®-SI is used as intermittent bracing.

Product Options


Rmax Black Sheating
1/2 in. x 4 ft. x 8 ft.

R-3 Polyisocyanurate
Rigid Foam Insulation Board

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Rmax Thermasheath-3
1/2 in. x 4 ft. x 8 ft.

R-3 Polyisocyanurate
Rigid Foam Insulation Board

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Rmax Durasheath®-3
3/4 in. x 4 ft. x 8 ft.

R-3 Polyisocyanurate
Rigid Foam Insulation Board

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Rmax ECOMAXci™
1/4 in. x 4 ft. x 8 ft.

R-6.5 Polyisocyanurate
Rigid Foam Insulation Board

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Rmax Thermasheath-3
2 in. x 4 ft. x 8 ft.

R-13.1 Polyisocyanurate
Rigid Foam Insulation Board

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