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
PERM-A-BARRIER® Product Documents
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 |
Technical Letters
Products
- Product Name
- Description
- Key Benefits
- Applications Type
PERM-A-BARRIER® Detail Membrane is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements.
- Fully bonded
- Waterproof and virtually impermeable to moisture
- Air tight
- Cross laminated film
- Cold applied
Building envelope
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.
- Fire resistant
- Plasticizer, Phthalate and Halogen-free
- Air tight
- Fully bonded
Building envelope
PERM-A-BARRIER® NPS Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.
- Primer-less self-adhered sheet
- Fire resistant
- Fully bonded
- Waterproof and virtually impermeable to moisture
Building envelope
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.
- 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
Vapor permeable air barrier for new and remedial commercial and residential applications
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.
- 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
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).
- Low temperature application; between 20ºF (-7ºC) and rising to 60ºF (16ºC)
- Fluid-applied
- Vapor-permeable
- NFPA 285 compliance
Building envelope
PERM-A-BARRIER® wall membranes are ideal for protecting the building superstructure from the damaging effects of the elements.
- Fully bonded
- Waterproof and virtually impermeable to moisture
- Cross laminated film
- Cold applied
Building envelope
PERM-A-BARRIER® Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.
- Self-adhering air and vapor barrier sheet membrane
- Waterproof and virtually impermeable to moisture
- Flexible
- Cold-applied
Building envelope
Accessories
- Accessory Name
- Description
- Key Benefits
- Applications Type
PERM-A-BARRIER® Adhesive imparts an aggressive, high tack finish on the treated substrate.
- Permeable formulation
- Fast drying
- Fast and easy application
- Low temperature
Building envelope
PERM-A-BARRIER® Aluminum Flashing is ideal for protecting and sealing critical areas of the building superstructure from the damaging effects of the elements.
- Fully bonded
- Waterproof and impermeable to moisture
- Air tight
- Aluminum faced film
- Cold applied
Building envelope
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.
- Primer-less self-adhered sheet
- Fully bonded
- Fire resistant
- Waterproof and virtually impermeable to moisture
- Air Tight
- Flexible
Building Envelope
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.
- No primer
- No staining or residue rundown
- High movement capability
Building envelope
PERM-A-BARRIER® Universal Flashing & Sealant is designed for a variety of uses with GCP’s air and weather barrier systems.
- Low VOC
- Solvent and isocyanate free
- Air tight
- Vapor permeable
Building envelope
PERM-A-BARRIER® WB Primer is a water-based primer which imparts an aggressive, high tack finish on the treated substrate.
- Excellent Adhesion
- Aggressive tack
- Fast drying
Building envelope
PERM-A-BARRIER® Aluminum Wall Membranes are ideal for protecting the building superstructure from the damaging effects of the elements.
- NFPA 285 compliance
- Fully bonded
- Waterproof and virtually impermeable to moisture
- Air tight
Building envelope
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
| 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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