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GCP APPLIED TECHNOLOGIES PERM-A-BARRIER WALL MEMBRANE

3' x 75' roll

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Availability: In stock

$240.73
 

Details

GCP Applied Technologies (Formerly Grace) Perm-a-Barrier Wall Membrane is a self-adhesive, rubberized asphalt/polyethylene waterproofing membrane for air and vapor barrier applications.

 

Product Data Sheet

 

Perm-A-Barrier Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements. By minimizing air and water vapor flow through the building exterior, Perm-A-Barrier Wall Membranes:

  • Prevent premature deterioration of the building envelope
  • Enhance thermal performance of the structure and save energy costs
  • Improve comfort for the building occupants 

Advantages

  • Fully bonded—transmits wind loads directly to the substrate
  • Waterproof and impermeable to moisture— impermeable to the passage of liquid water and water vapor
  • Air tight—exceeds CCMC requirements for air barrier membranes, complies with Massachusetts State Energy Code and meets new ASTM E2357 standard
  • Cross laminated film—provides dimensional stability, high tear strength, puncture and impact resistance
  • Cold applied—no flame hazard; self-adhesive overlaps ensure continuity
  • Flexible—accommodates minor settlement and shrinkage movement
  • Controlled thickness—factory made sheet ensures constant, non-variable site application
  • Aggressive, conformable adhesive—allows self-sealing around mechanical fasteners
  • Wide application window—

— Perm-A-Barrier Wall Membrane surface and ambient temperatures at 5°C (40°F) and above

— Perm-A-Barrier Low Temperature Wall Membrane surface and ambient temperatures between 25°F (-4°C) and 60°F (16°C)

— Perm-A-Barrier High Temperature Wall Membrane for use at in-service temperatures between 150°F (65°C) and 180°F (82°C) 

System Components

  • Perm-A-Barrier Wall Membrane—standard grade for use at installation temperatures above 40°F (5°C)
  • Perm-A-Barrier Low Temperature Wall Membrane—low temperature grade for use at installation temperatures between 25°F (-4°C) and 60°F (16°C)
  • Perm-A-Barrier High Temperature Wall Membrane—for use where in-service temperatures are between 150°F (65°C) and 180°F (82°C)
  • Perm-A-Barrier Primer Plus—water-based vapor permeable primer used to facilitate tenacious adhesion of Perm-A-Barrier selfadhered membranes to the substrate
  • Perm-A-Barrier WB Primer—high tack, water-based primer for use with Perm-A-Barrier Wall Membranes on cementitious and exterior gypsum wallboards
  • Bituthene Primer B2 LVC—low VOC primer for priming green concrete and damp surfaces
  • Grace S100 Sealant—one part neutral curing, ultra low modulus silicone sealant for sealing penetrations, terminations, brick ties and final terminations.
  • Bituthene Mastic—rubberized asphalt mastic for sealing penetrations, terminations, brick ties, etc.
  • Bituthene Liquid Membrane—two component, trowel grade, asphalt modified urethane for sealing patches, terminations, brick ties, etc.
  • Perm-A-Barrier Wall Flashing—fully adhered throughwall flashing system
  • Perm-A-Barrier Detail Membrane—fully adhered flashing for protecting and sealing critical detail areas  

How long can Perm-A-Barrier Wall Flashing and Membrane be exposed to sunlight?
Perm-A-Barrier Wall Flashing and Membrane should be covered within 30 days after installation.

What temperatures can Perm-A-Barrier Wall Flashing and Membrane withstand in the cavity of double wythe masonry?
The softening point of Perm-A-Barrier Wall Flashing and Membrane is between 82-93 °C (180-200 °F). Temperatures greater than this may cause the membrane to liquefy and drip.

Can Perm-A-Barrier Wall Flashing be applied over asphaltic dampproofing?
Perm-A-Barrier Wall Flashing can be applied over asphaltic dampproofing when fully cured. Priming may be necessary to enhance the adhesion.

Can Perm-A-Barrier Wall Flashing and Membrane be installed over EPDM (Ethylene Propylene Diene Monomer)?
Perm-A-Barrier Wall Flashing and Membrane should not be installed over EPDM. However, EPDM can be installed over Perm-A-Barrier Wall Flashing and Membrane.

Is metal drip edge required when using Perm-A-Barrier Wall Flashing?
Using a metal drip edge in conjunction with Perm-A-Barrier Wall Flashing would be a "belt and suspenders" detail, but is not necessary.

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