ProtectoWrap 100/40 (Air/Vapour Barrier Peel ‘n Stick Flashing)

Peel ‘n Stick Flashing and Full Wall Membrane with an asphalt-butyl blend which works at high temperatures up to 240°F.


Protecto Wrap Company’s 100/40Air/Vapor Barrier – Thru Wall Flashing is a peel and stick membrane for use as a positive air/vapour stop in everyday construction. 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.
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