Air Vapor Barrier Installation

Learn more about building envelopes and why they matter.

Air vapor barrier installation.

Self adhesive air and vapor barrier membrane blueskin sa is a self adhering membrane consisting of an sbs rubberized asphalt compound laminated on a blue polyethylene film. They dramatically improve building energy efficiency indoor comfort and longevity. What is a vapor barrier. Thus installing vapor barriers on wall surfaces must.

For fast and simple installation perm a barrier products come in sheet and liquid options and in vapor permeable and non permeable technologies. The science of moisture movement. Ccw provides three types of air barriers. Water vapor can pass through building materials in several ways including direct transmission and by heat transfer but studies suggest that fully 98 percent of the moisture transfer through walls occurs through air gaps including cracks around electrical fixtures and outlets and gaps along baseboards.

When installed with standard tape and sealing practices creates an air barrier that has been tested under stringent performance guidelines. The association is a non profit group of stakeholders in the construction marketplace focused on promoting the use and benefits of air barrier systems educating the public about air barrier systems and developing a professional air barrier specialty trade and industry dedicated to the installation of effective air barrier systems in buildings. Vapor barriers or vapor retarders are materials used to slow or reduce the movement of water vapor through a material. For more information view the full membrain air barrier instructions.

It s a good idea to install both types of air barrier so as not to negate the benefits of one by neglecting the other. An example of this are self adhered modified bituminous membranes and sheet polyethylene which can be used as both an air barrier and a vapor barrier. Perm a barrier products help create complete building envelope solutions. F5 air vapor barrier.

Air barrier materials can also be provided with properties which also class them as vapor barriers. A 40 mil composite consisting of 35 mils of self adhering rubberized asphalt laminated to a 5 mil woven polypropylene film. Impermeable to air moisture vapor and water blueskin sa is designed to install easily on a variety of prepared substrates. Where to use membrain.

Contractors can apply them easily to most commercial building surfaces including concrete green concrete steel brick and modular vinyl.