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. When HVAC conditioned air leaks out of a building and unconditioned air leaks into a building additional energy is required to then condition this air. 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. Two additional benefits of fluid applied AWB systems are their durability and effectiveness in controlling both weather damage during construction and in preventing the growth of mold and mildew.
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.
Backstop NT® is a High Performance, Noncementitious Water-Resistive Membrane and Air Barrier. Backstop NT and AquaFlash are a seamless, liquid-applied air and water resistive barrier combination ideal for use with all cladding types. Polymer based and liquid-applied, Backstop NT protects the substrate and AquaFlash the rough wall openings, bonding chemically to act as an effective air and moisture barrier. Proven for over 10 years on thousands of projects worldwide.
(* a slip sheet must be used between stucco and Senershield)
AquaFlash® is a water-resistant flashing system consisting of a liquid adhesive and a polyester tape for use at wall openings. Backstop NT and AquaFlash are a seamless, liquid-applied air and water resistive barrier combination ideal for use with all cladding types. Polymer based and liquid-applied, Backstop NT protects the substrate and AquaFlash the rough wall openings, bonding chemically to act as an effective air and moisture barrier. Proven for over 10 years on thousands of projects worldwide.
PROSOCO R-GUARD® is a family of products developed to maximize wall R-values by preventing the unwanted movement of water and air through building envelopes; reducing heating and cooling costs and lowering the risk of mold and mildew. Compared to self-adhered or mechanically-fastened sheet wraps, easy-to-use R-GUARD provides superior protection against water intrusion, while minimizing potential for condensation within walls. Once on the substrate, the easily applied liquid quickly dries into a rubberized, highly-durable, water-resistant membrane. R-GUARD performs the function of both a vapor barrier and an air and water resistive barrier. Utilize R-GUARD as the primary air barrier/water-resistive barrier over properly prepared above grade structural walls prepared with R-GUARD joint and seam treatments and liquid flashing membranes.