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. 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.
Contact an Air Barrier Specialist today
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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
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.
Contractor References
Find application instructions, installation details and detailed drawings.
Distributor Locator
Looking for a distributor that supplies air barriers, flashing, weather resistive barriers, roofing underlayments, waterproofing, injection materials or flooring?
- Product
- Description
- Key Benefits
- Applications Type
Perm-A-Barrier® Liquid is a two component, synthetic rubber, cold-vulcanized, fluid applied membrane. It cures to form a resilient, monolithic, fully bonded elastomeric sheet.
- Flexible
- Fluid-applied membrane
- Seamless air and vapor barrier
New and remedial air and vapor barriers for commercial and residential applications
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Perm-A-Barrier® Adhesive Primer 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® 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
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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® 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.
- Low VOC
- Solvent and isocyanate free
- Air tight
- Vapor permeable
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. Designed to satisfy the requirements of fire-rated assemblies, Perm-A-Barrier NPL 10/NPL 10 LT can be included in a wide variety of NFPA 285 compliant wall designs.
- NFPA 285 compliance
- Plasticizer, Phthalate and Halogen-free
- Air tight
- Single component
- Fully bonded
- Seamless
Air and vapor barrier for new and remedial commercial applications
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
Air and vapor barrier for new and remedial commercial applications
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
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Perm-A-Barrier® Primer Plus is a water-based primer which imparts an aggressive, high tack finish on the treated substrate.
- Excellent adhesion
- Aggressive tack
- Fast drying
- Fast and easy application
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® 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.
- Fluid-applied
- Vapor-permeable
- Conforms to complex and irregular shapes
- Low temperature
Vapor permeable air barrier for new and remedial commercial and residential applications
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Perm-A-Barrier® VPL 50 is a fluid applied, one component, STPE membrane that cures to form a resilient, monolithic, fully bonded elastomeric sheet when applied to construction surfaces.
- Resistant to early rain
- Simple application
- Chemical cure, wet thickness is equal to dry thickness
- STPE technology
Building envelope
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).
- Low temperature application; between 20F (-7C) and rising to 60F (16C
- Fluid-applied
- Vapor-permeable
- NFPA 285 compliance
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)
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Perm-A-Barrier® VPO is a fluid applied, one component, acrylic membrane that provides continuous air tightness and water protection throughout the wall assembly.
- Dark-colored
- Indirect and intermittent UV exposure
- Air tight
- Vapor permeable
Vapor permeable air barrier for new and remedial commercial and residential applications requiring indirect and intermittent UV exposure such as behind open joint rain screen systems.
Perm-A-Barrier® VPS (Vapor Permeable Sheet) is a vapor permeable air barrier membrane consisting of a proprietary breathable carrier film with a specially designed adhesive.
- Self-adhering
- Vapor-permeable
- Fast, easy application
- Flexible
Vapor permeable air barrier for new and remedial commercial and residential applications.
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
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