BlockShield SA for Walls

Quick Overview 

BlockFlashing Banner No Window webDesigned for use in commercial and residential construction applications, BlockShield SA creates a barrier against water, air, and moisture infiltration when applied in a rainscreen assembly behind exterior cladding.

Lightweight, Self-Adhered Air, Water, and Vapor Barrier Membrane

  • Impermeable to air, moisture vapor, and water
  • Approved CAN/ULC S741-08, CAN/ULC S742-11
  • Approved ASTM E2178/ASTM E2357 air barrier tests
  • Non-asphaltic product 
  • No Red List Chemicals
  • Contains 18-20% post-industrial recycled content
  • Application temperature 20°F (-6.6°C) and rising 
  • 12 month UV and weather exposure 
  • Aggressive pressure-sensitive adhesive 
  • No primer required 
  • Zero VOCs
  • AAMA 711-13 compliant 
  • Durable, tear resistant, and flexible at low temperatures
  • Fire Rated, Class A to ASTM E84
  • 20 year warranty 


BlockFlashing Icons SidebySide 01

Air, Water and Vapor Barrier Flashing System

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BlockFlashing: Three Convenient Sizes

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