07 25 00 Weather Barriers

Category Archives: 07 25 00 Weather Barriers

Durability of Water-resistive Barriers

wrb_file opener

Many new water-resistive barrier (WRB) products are being introduced, including liquid-applied membranes. These new products join traditional wraps, self-adhered membranes, felts, and building paper, making for a crowded marketplace. A WRB will be concealed behind cladding, where it cannot be inspected, maintained, or replaced, so it must last for the design life of the building. However, will the new products be durable?

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Richardsville Elementary – NET ZERO

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September 2010 marked the grand opening for Richardsville Elementary, the First Net-Zero Insulated Concrete Form School in the U.S. Warren County School district, the school board responsible for Richardsville, has been building energy efficient schools that are being recognized for their innovation across the United States.

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Clarification on wall systems article

The April 2013 issue of The Construction Specifier included a technical feature by J.W. Mollohan, CSI, CCPR, CEP, LEED GA, entitled, “Exterior Wall Assemblies: Are You Getting What You Specified?”  We received the following letter from Cliff Black, a CSI member and a building envelope product manager for Firestone Building Products.

I am writing in regard to the article on exterior wall assemblies. I agree with the author the issue is certainly a challenging …

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Making Sense of Sprayed Polyurethane Foam

All photos courtesy Spray Foam Coalition

For decades, the U.S. design and construction industry has turned to sprayed polyurethane foam to insulate and air seal buildings. When used as a roofing material, its monolithic nature allows for a seamless, self-flashing application that can keep out water. SPF can also improve energy efficiency, helping building owners and general contractors comply with energy codes and meet performance requirements for green building programs and certifications.

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