Dow Structural Insulated Sheathing Sis

Pressure difference across the wall for osb housewrap and styrofoam sis brand structural insulated sheathing assemblies 1 0 8 0 6 0 4 0 2 0 25 50 75 100 150 250 300 osb housewrap vinyl siding 1 2 styrofoam sis sheathing as wrb vinyl siding. Air exchange per hour performance 15 20 better than standard. Features benefits industry s tightest air barrier for lower air infiltration.

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