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DESCRIPTION Protecto Wrap Company’s P.W. 100/40 Air/Vapor Barrier – Thru Wall Flashing is a peel and stick membrane for use as a positive air/vapor stop in everyday construction. Our product, P.W. 100/40, is a 40 mil SBS modified rubberized asphalt sheet waterproofing membrane that fully bonds to most substrates through the primer course. It is a white, polyethylene-topped, membrane that has excellent conforming capabilities to irregular surfaces. P.W. 100/40 is compatible with and will adhere to steel, wood, concrete, building paper, block wall, dry wall and insulation board. P.W. 100/40’s paper release backing, and the variety of roll widths, contributes to the ease of application. There are multiple uses that utilize the aggressive adhesive characteristics of the membrane, some include:
• As a Thru Wall Flashing • As a full building wrap in envelope applications in cavity wall construction • Sealing window and door perimeters to the building substrates • Sealing around skylights • As a vapor barrier in mechanically fastened roofing systems • Sealing joints in exterior gypsum board • Sealing joints in outsilation systems • Sealing penetrations in roof and wall systems