Fluid Applied Air/Weather Barriers
Air/Weather Barriers (AWB) control the unintended movement of air and moisture into and out of a building enclosure. Air/Weather Barrier systems are comprised of a number of materials which are assembled together to provide a complete barrier to air and water leakage through the building envelope. AWB’s essentially “wrap” the building shell and ensure that it protects the building from the effects of leakage. As would seem obvious; moisture intrusion into a building can create long term degradation problems, which are difficult and expensive to remedy. Air leakage issues are less obvious, but none-the-less can detrimentally effect the functioning of a building’s environmental systems and ultimately can reduce the life span of a building. Air leakage can result in an increase in energy costs of up to 30-40% in heating climates and 10-15% in cooling climates. It’s easy to imagine the expensive waste of energy and resources this results in.
Fluid applied AWB’s are the most efficient means of stopping air and moisture migration through gaps, cracks and holes in the exterior of a structure; more so than building wraps and traditional building paper. This is true because, fluid or liquid applied systems form a seamless skin which tightly envelops the exterior substrate of the building filling and spanning gaps, fastener holes and lap joints, which can compromise traditional paper or wrap installations.
Fluid applied systems generally include 4 components; a spray or trowel applied treatment for fastener heads and sheathing joints; a reinforcing mesh used for strengthening the sheathing joints, a membrane or mesh for application around windows and penetrations and lastly; a waterproof air barrier which can be spray, roll or brush applied over the properly prepared wall surface. Salmon Bay is supplied with these energy saving products, by the nationally recognized manufacturers listed on our Clipboard.
Dryvit Backstop products are designed for use with Dryvit Systems as well as other building cladding systems. Backstop is available in a Dry Mix polymer modified cementitious formulation as well as in two noncementitious liquid versions. Backstop can be applied in a variety of methods depending upon the product selected. When used with the Dryvit AquaFlash® System or Dryvit Flashing Tape™, Backstop NT provides exceptional air barrier and water-resistive membrane for most substrates.
AquaFlash Liquid is an extremely flexible, water-based polymer material used in conjunction with AquaFlash Mesh and AquaFlash Corners to seal substrates around windows, doors and other openings. The AquaFlash System provides an effective, water-resistant transition membrane to provide continuity of Dryvit’s Backstop® NT™ air and water-resistive barrier between different substrate materials and to bridge across sheathing joints, at openings, at inside and outside corners, as well as across floor lines.
R-Guard air barrier systems stop air leakage through wall structures, rough openings, sheathing seams, and material transitions making your building air tight. And an air tight building is an energy efficient building. That’s why buildings that meet the world’s toughest energy efficiency requirements use R-Guard. The Bullitt Center in Seattle, considered the world’s greenest commercial building, selected R-Guard for it’s air and water barrier system.