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.
Initially, water vapor diffusion was seen as the likely culprit for condensation problems; designers and consultants spent hours running and analyzing wall assemblies using the dewpoint method.
This article describes the air barrier performance requirements for the desired wind load design specifications. The performance level is not determined by the type of air barrier material, but by the installation details.
Builders, architects, and specifiers have always demanded excellence in themselves, their materials, contractors, and subcontractors. Design professionals find success through various ways, from word of mouth to programs such as EnergyStar or Green Globes, or by seeking professionals certified in their given fields.
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