PERM-A-BARRIER® 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.

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.

Contact an Air Barrier Specialist today

NFPA 285 Compliant Wall Assemblies

Documents

PERM-A-BARRIER® Product Documents

Product Name Product Data Sheet Guide Specifications SDS/MSDS
PERM-A-BARRIER® Adhesive Primer Data Sheet
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® Air Barriers NFPA 285 Compliant Wall Assemblies
Product Data Sheet
PERM-A-BARRIER® Aluminum Flashing
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® Detail Membrane
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® Liquid Flashing
Product Data Sheet
PERM-A-BARRIER® NPL 10/ NPL 10 LT
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® NPS Detail Membrane
Product Data Sheet
PERM-A-BARRIER® NPS Wall Membrane
Product Data Sheet
Guide Specifications
SDS/MSDS
PERM-A-BARRIER® Primer Plus
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® S100 Sealant
Product Data Sheet
PERM-A-BARRIER® VPL
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® VPL 50RS UV STABLE Membrane
Product Data Sheet
Guide Specifications
SDS/MSDS
PERM-A-BARRIER® VPL Low Temperature
Product Data Sheet
PERM-A-BARRIER® Wall Flashing
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® Wall Membrane
Product Data Sheet
Guide Specifications
SDS/MSDS
PERM-A-BARRIER® WB Primer
Product Data Sheet
SDS/MSDS
PERM-A-BARRIER® Aluminum Wall Membrane
Product Data Sheet
SDS/MSDS

PERM-A-BARRIER® VPS 30 Product Documents

Product Name Product Data Sheet Guide Specifications SDS/MSDS
PERM-A-BARRIER® VPS 30 WALL MEMBRANE
Product Data Sheet
Guide Specifications
SDS/MSDS

Guide Specifications

Product Name DOC DOCX
Aluminium Flashing Specification
PERM-A-BARRIER® VPL 50RS UV Stable Guide Specification
PERM-A-BARRIER® VPS Guide Specification
PERM-A-BARRIER® Wall Membrane Guide Specification
PERM-A-BARRIER® Wall Membrane Specification
Wall Flashing Specification
Products & Accessories

Products

  • Product Name
  • Description
  • Key Benefits
  • Applications Type
PERM-A-BARRIER® Detail Membrane
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® NPL 10/ NPL 10 LT
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

Building envelope

PERM-A-BARRIER® NPS Wall Membrane
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® VPL
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 50RS UV STABLE Membrane
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 Low Temperature
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 20ºF (-7ºC) and rising to 60ºF (16ºC).

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

Building envelope

PERM-A-BARRIER® Wall Flashing
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

PERM-A-BARRIER® Wall Membrane
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

Accessories

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

PERM-A-BARRIER® Adhesive 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® Aluminum Flashing
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® Liquid Flashing
Description

PERM-A-BARRIER® Liquid Flashing is a fluid applied, one component, membrane that cures to form a durable, resilient, monolithic and a fully bonded elastomeric flashing when applied to existing or new construction.

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

Building envelope

PERM-A-BARRIER® NPS Detail Membrane
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® Primer Plus
Description

PERM-A-BARRIER® Primer Plus is a water-based primer which imparts an aggressive, high tack finish on the treated substrate.

Key Benefits
  • Excellent adhesion
  • Aggressive tack
  • Fast drying
  • Fast and easy application
Application Type

Building envelope

PERM-A-BARRIER® S100 Sealant
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

PERM-A-BARRIER® WB Primer
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® Aluminum Wall Membrane
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

Overview

Design versatility and performance

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.

PERM-A-BARRIER® product portfolio

  Impermeable Permeable
Liquid-applied PERM-A-BARRIER® Liquid PERM-A-BARRIER® VPL / VPL LT
  PERM-A-BARRIER® NPL 10 PERM-A-BARRIER® VPL 50
  PERM-A-BARRIER® NPL 10 LT PERM-A-BARRIER® VPO
Self-adhered PERM-A-BARRIER® Wall Membrane PERM-A-BARRIER® VPS
  PERM-A-BARRIER® Aluminum Wall Membrane PERM-A-BARRIER® VPS 30
  PERM-A-BARRIER® NPS (primer less)  
Accessories PERM-A-BARRIER® Wall Flashing PERM-A-BARRIER® Detail Membrane
  PERM-A-BARRIER® Adhesive PERM-A-BARRIER® Aluminum Flashing
  PERM-A-BARRIER® Liquid Flashing PERM-A-BARRIER® S100

Tried and tested for 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.

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.

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