EPRO launches AtmoSeal VP air barrier system

EPRO Services Inc. said AtmoSeal VP is now commercially available for above-grade exterior wall assemblies across the U.S. and Canada. The new vapor-permeable system is designed to pair with EPRO’s below-grade products for ground-to-roof building envelope protection.

Why it matters: - EPRO is extending its waterproofing and vapor mitigation platform from below grade to above grade. - The new system is meant to give specifiers one manufacturer for continuous building envelope protection from the ground to the roof. - The product targets commercial projects that need vapor permeability, air control and code compliance in one fluid-applied system.

What happened: - EPRO Services Inc. announced the commercial availability of AtmoSeal VP for above-grade exterior wall assemblies. - AtmoSeal VP is a single-component STPE fluid-applied vapor-permeable air and water-resistive barrier. - The product is available across the U.S. and Canada. - EPRO also introduced AtmoFlash VP detailing sealant as a companion product.

The details: - AtmoSeal VP exceeds 20 perms at 20 mil thickness. - EPRO says the system offers high drying capacity while limiting trapped moisture in wall assemblies. - The barrier is designed for spray or roller application in a single coat. - The system is intended to maintain mil thickness after drying. - AtmoSeal VP adheres to damp or dry substrates. - The barrier forms a seamless, elastomeric air barrier on gypsum sheathing, plywood, OSB, CMU and concrete. - The product is built around STPE chemistry and can be applied to damp surfaces. - EPRO says the chemistry reflects the premium tier expected in commercial construction. - AtmoSeal VP is rated ASTM E84 Class A. - The system meets AAMA 714-19. - The product is compatible with NFPA 285 wall assemblies. - AtmoSeal VP is sold in 5-gallon, or 18.9-liter, buckets. - The shelf life is 18 months. - AtmoSeal VP and AtmoFlash VP are designed to create a continuous air and water-resistive barrier without separate self-adhered membrane materials. - The two products are compatible with EPRO below-grade waterproofing systems for warrantable building envelope protection from the ground up.

Between the lines: - EPRO is using its below-grade reputation to push into a broader share of the commercial envelope market. - The combination of vapor permeability, fluid application and compatibility with multiple substrates should appeal to specifiers trying to simplify wall assemblies. - The one-manufacturer message is as much about procurement and system integration as it is about product performance.

What's next: - EPRO will market AtmoSeal VP alongside its below-grade waterproofing lineup. - Builders and specifiers can now use the company’s products for a single-source ground-to-roof envelope strategy. - The company’s contact information and more product details are available at EPRO’s website.