PERM-A-BARRIER® Wall Air Barrier System

A comprehensive portfolio of fully bonded air barrier membranes for NFPA 285 compliant assemblies. Our technology includes permeable and non-permeable solutions offered as both fluid-applied and sheet-applied systems.

Overview

The PERM-A-BARRIER® portfolio offers both permeable and non-permeable solutions to meet the range of factors on a given project, including regional climate, wall design, compatibility with other materials, insulation placement and interior conditions.

Our newest air barrier PERM-A-BARRIER® NPS employs a primer-less, self-adhered application for easier installation that saves time and money on the job. Eliminates primer, often a hazardous chemical, from the job site.

High performance with code compliance

Most products in the PERM-A-BARRIER® portfolio meet or exceed all ASTM, ABAA and NFPA building code standards. In addition, PERM-A-BARRIER® solutions have been tried, tested and proven across thousands of projects worldwide.

EPD's

BRIEFCASE 

Expert field technical support

Our technical experts frequently provide direct consultation throughout the design, product selection and installation process. In addition to project-specific support, we provide both classroom and hands-on applicator training to ensure that our PERM-A-BARRIER® products are installed correctly and perform as designed, protecting the structure for years to come. Able to instruct applicators on the installation of sheet membranes and proper spray techniques, our field technicians advise on the proper sequencing and use of materials within these flexible systems. You can consult in-product compatibility and assembly techniques for a completely watertight and airtight system. Our technicians offer advice on detailing, sequencing, efficient assembly techniques and labor-saving tips.

PERM-A-BARRIER® portfolio

The PERM-A-BARRIER® portfolio provides watertight, airtight air barrier systems and full field technical support for flexibility and high-performance compatibility with a project's building envelope design. We offer a broad product range for any wall design or design requirement. Our air barrier membranes and accessories are designed to work together and are rigorously tested to meet building code requirements. The end result is a truly optimized wall design that's sustainable over time.

Based on the comprehensive performance benefits of PERM-A-BARRIER® VPL 50RS UV Stable Air Vapor Barrier system, we will be transitioning PERM-A-BARRIER® VPO, PERM-A-BARRIER® VPL 50 & PERM-A-BARRIER® VPL50RS to PERM-A-BARRIER® VPL 50RS UV Stable effective immediately. Please contact your account representative for more details.

Products & Accessories

Products

Self-adhered flashings

Vapor impermeable

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

Self-adhered underlayment

Impermeable

  • Product Name
  • Description
  • Key Benefits
  • Applications Type
PERM-A-BARRIER® Aluminum Wall Membrane Data Sheet

Self-adhered flashings

Vapor impermeable

Description

PERM-A-BARRIER® Aluminum Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.

Key Benefits
  • NFPA 285 compliance
  • Fully bonded
  • Waterproof and virtually impermeable to moisture
  • Air tight
Application Type

Building envelope

PERM-A-BARRIER® NPL 10/ NPL 10 LT Data Sheet

Fluid applied waterproofing

Liquid applied waterproofing

Vapor impermeable

PERM-A-BARRIER® NPL 10/ NPL 10 LT Data Sheet Visit PERM-A-BARRIER® NPL 10/ NPL 10 LT Data Sheet page

Fluid applied waterproofing

Liquid applied waterproofing

Vapor impermeable

Description

PERM-A-BARRIER® NPL 10/NPL 10 LT is a fluid applied, one component, latex-based membrane that cures to form a resilient, monolithic, fully-bonded elastomeric sheet when applied to construction surfaces.

Key Benefits
  • Fire resistant
  • Plasticizer, Phthalate and Halogen-free
  • Air tight
  • Fully bonded
Application Type

Air and vapor barrier for new and remedial commercial applications

PERM-A-BARRIER® NPS Wall Membrane

Self-adhered flashings

Vapor impermeable

Description

PERM-A-BARRIER® NPS Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.

Key Benefits
  • Primer-less self-adhered sheet
  • Fire resistant
  • Fully bonded
  • Waterproof and virtually impermeable to moisture
Application Type

Building envelope

PERM-A-BARRIER® Wall Membrane

Self-adhered underlayment

Vapor impermeable

Description

PERM-A-BARRIER® Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.

Key Benefits
  • Self-adhering air and vapor barrier sheet membrane
  • Waterproof and virtually impermeable to moisture
  • Flexible
  • Cold-applied
Application Type

Building envelope

Permeable

  • Product Name
  • Description
  • Key Benefits
  • Applications Type
PERM-A-BARRIER® VPL 50RS UV STABLE Membrane Data Sheet

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

Description

GCP (GCP) PERM-A-BARRIER® VPL 50RS UV STABLE Membrane is a fluid applied, one component, STPE (Silyl Terminated Polyether) vapor permeable air and water barrier. When applied to approved construction surfaces, PERM-A-BARRIER® VPL 50RS UV STABLE liquid is designed to cure and form a resilient, monolithic, fully bonded elastomeric sheet, and to create a continuous barrier against air infiltration and exfiltration, reducing associated energy loss and condensation problems.

Key Benefits
  • UV stable behind maximum 1 in. wide open joint rainscreen system; provides design flexibility
  • Can be exposed for up to 12 months during construction
  • Early wash-off resistance
  • Can be applied to damp-to-touch surfaces that are free of liquid water 
  • Sprayer friendly formula requiring light spray equipment 
Application Type
PERM-A-BARRIER® VPL Data Sheet

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

PERM-A-BARRIER® VPL Data Sheet Visit PERM-A-BARRIER® VPL Data Sheet page

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

Description

PERM-A-BARRIER® VPL is a fluid applied, one component, acrylic membrane that cures to form a resilient, monolithic, fully bonded elastomeric sheet when applied to construction surfaces.

Key Benefits
  • Fire resistant
  • Plasticizer, Phthalate and Halogen-free
  • Air tight
  • Vapor permeable
  • Single component
  • Fully bonded
  • Seamless
  • Damp surface tolerant
  • Strong adhesion to common construction substrates such as wood, block, concrete, OSB, gypsum sheathing and metal
  • Compatible with PERM-A-BARRIER® Flashing Systems
Application Type

Vapor permeable air barrier for new and remedial commercial and residential applications

PERM-A-BARRIER® VPL Low Temperature Data Sheet

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

PERM-A-BARRIER® VPL Low Temperature Data Sheet Visit PERM-A-BARRIER® VPL Low Temperature Data Sheet page

Fluid applied waterproofing

Liquid applied waterproofing

Vapor permeable

Description

PERM-A-BARRIER® VPL LT is a two component, fluid-applied, acrylic membrane that cures to form a resilient, monolithic, fully bonded elastomeric sheet when applied to construction surfaces at temperatures between 20F (-7C) and rising to 60F (16C).

Key Benefits
  • Low temperature application; between 20F (-7C) and rising to 60F (16C
  • Fluid-applied
  • Vapor-permeable
  • NFPA 285 compliance
Application Type

Vapor permeable air barrier for new and remedial commercial and residential applications where application temperatures are between 20 °F (-7 °C) and 60 °F (16 °C)

PERM-A-BARRIER® VPS 30 WALL MEMBRANE Data Sheet

Self-adhered underlayment

Vapor permeable

Description

The PERM-A-BARRIER® VPS 30 (vapor permeable sheet) is a primerless, vapor permeable air and water barrier membrane consisting of a proprietary breathable carrier film with a specially designed adhesive.

Key Benefits
  • Primerless, self-adhered sheet - Reduces installation time 
  • NFPA 285 - Meets NFPA 285 as part of various wall assemblies
  • Airtight - Protects against air passage and associated energy loss
Application Type

Accessories

Vapor impermeable

Cold applied waterproofing

Self-adhered underlayment

Self-adhered flashings

Impermeable

  • Accessory Name
  • Description
  • Key Benefits
  • Applications Type
PERM-A-BARRIER® Adhesive Primer Data Sheet

Vapor impermeable

Description

PERM-A-BARRIER® Adhesive Primer imparts an aggressive, high tack finish on the treated substrate.

Key Benefits
  • Permeable formulation
  • Fast drying
  • Fast and easy application
  • Low temperature
Application Type

Building envelope

PERM-A-BARRIER® Wall Flashing Data Sheet

Self-adhered underlayment

Vapor impermeable

Description

PERM-A-BARRIER® wall membranes are ideal for protecting the building superstructure from the damaging effects of the elements.

Key Benefits
  • Fully bonded
  • Waterproof and virtually impermeable to moisture
  • Cross laminated film
  • Cold applied
Application Type

Building envelope

  • Accessory Name
  • Description
  • Key Benefits
  • Applications Type
PERM-A-BARRIER® Aluminum Flashing Data Sheet

Cold applied waterproofing

Description

PERM-A-BARRIER® Aluminum Flashing is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements.

Key Benefits
  • Fully bonded
  • Waterproof and impermeable to moisture
  • Air tight
  • Aluminum faced film
  • Cold applied
Application Type

Building envelope

PERM-A-BARRIER® Detail Membrane Data Sheet

Cold applied waterproofing

Self-adhered underlayment

Description

PERM-A-BARRIER® Detail Membrane is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements.

Key Benefits
  • Fully bonded
  • Waterproof and virtually impermeable to moisture
  • Air tight
  • Cross laminated film
  • Cold applied
Application Type

Building envelope

PERM-A-BARRIER® NPS Detail Membrane Data Sheet

Self-adhered flashings

Description

PERM-A-BARRIER® NPS Detail Membrane is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements.

Key Benefits
  • Primer-less self-adhered sheet
  • Fully bonded
  • Fire resistant
  • Waterproof and virtually impermeable to moisture
  • Air Tight
  • Flexible
Application Type

Building Envelope

PERM-A-BARRIER® Universal Flashing & Sealant Data Sheet
Description

PERM-A-BARRIER® Universal Flashing & Sealant is designed for a variety of uses with GCP’s air and weather barrier systems.

Key Benefits
  • Low VOC
  • Solvent and isocyanate free
  • Air tight
  • Vapor permeable
Application Type

Building envelope

PERM-A-BARRIER® WB Primer Data Sheet
Description

Perm-A-Barrier® WB Primer is a water-based primer which imparts an aggressive, high tack finish on the treated substrate.

Key Benefits
  • Excellent Adhesion
  • Aggressive tack
  • Fast drying
Application Type

Building envelope

PERM-A-BARRIER® S100 Sealant Data Sheet
Description

PERM-A-BARRIER® S100 Sealant is a one part neutral curing, ultra low modulus silicone sealant that reacts with atmospheric moisture to form a durable and flexible building sealant.

Key Benefits
  • No primer
  • No staining or residue rundown
  • High movement capability
Application Type

Building envelope