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BP Canada High-Performance R-4 Insulation Sheathing - Wood Fibre and Expanded Polystyrene - 9-ft x 4-ft x 1 1/8-in
BP Canada R-4 High Performance Insul-Sheathing combines the strength of wood fibres with type II polystyrene insulation, delivering true R-4 thermal resistance. This fibreboard has superior structural strength, while remaining lightweight and easy to install without the need for additional bracing. It offers great acoustic insulation and is permeable to ensure wall cavities stay dry. Created with 98 percent recycled materials, this insulation board is an eco-friendly product.
Fibreboard/Type II Expanded Polystyrene Insulation