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12" x 50' Roll

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Polyguard 105-12 Flashing Membrane is a 105 mil, strong, pliable self-adhesive sheet consisting of high density polyethylene film bonded to a layer of rubberized asphalt waterproofing compound with slit release sheet to conform to 90" angles.


Product Data Sheet 


105-12 Flashing is used in exterior flashing applications to deflect water. Applications include spandrel beams, sills, copings, door and window headers, and flange flashings.


  • 650 LT Liquid Adhesive, a rubber-based, tacky adhesive which is specifically formulated to provide excellent adhesion.
  • California Sealant, a rubber-based sealant which is specifically formulated to provide excellent adhesion.
  • Detail Sealant PW™ is a single-component, STPE, 100% solid moisture-cured, elastomeric sealant. It is an environmentally-friendly, non-isocyanate product that replaces silicone and urethane sealants. It is a low VOC/HAPS free, cold-applied, self-adhesive, elastomeric sealant.
  • LM-95, a two-component, asphalt-modified, urethane material.

Features and Benefits 

  • Can be field fabricated to meet various job site conditions without cracking as compared to some metal systems
  • High puncture resistance provides protection against abuse by other trades during and after installation
  • Rubberized asphalt membrane adheres tenaciously to the surface and itself eliminating blowoff and tears, before exterior wall installation
  • Rubberized asphalt used in this flashing will help to self-seal if the membrane is punctured

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