Air Vapor Barrier Details

It reduces air leakage and uncontrolled airflow from the building envelope prevents moisture ingress and helps improve indoor air quality.

Air vapor barrier details.

Perm a barrier products help create complete building envelope solutions. For fast and simple installation perm a barrier products come in sheet and liquid options and in vapor permeable and non permeable technologies. An excellent discussion about the differences between vapor barriers and air barriers can be found in quirrouette 1985. Vapor barriers are also a cold climate artifact that have diffused into other climates more from ignorance than need.

Contractors can apply them easily to most commercial building surfaces including concrete green concrete steel brick and modular vinyl. Air bloc 17mr cures to a tough monolithic rubber like membrane. Spray roll or brush applied henry s air bloc 17mr is a one component rubberized membrane that provides an air barrier when applied to a range of construction surfaces. Air barriers are essential for a high performing building envelope.

Options for above and below grade applications are available. 3m air and vapor barrier 3015 is an air moisture and water impermeable film membrane with an aggressive high tack pressure sensitive acrylic adhesive. Meadows system to complete the building envelope. Air shield self adhering air vapor and liquid moisture barrier is part of a total w.

Impermeable to air moisture vapor and water blueskin sa is designed to install easily on a variety of prepared substrates. About air vapor barriers. Carlisle boasts the industry s most comprehensive line of air and vapor barrier products including self adhering sheet membranes spray and roller applied air vapor barriers and fluid applied vapor permeable air barriers. Keep in mind however sheet polyethylene on the inside of building assemblies in cold mixed.

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. 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. Low temperature application down to 20 f 6 c with no additives required. It is a roll type product that is nominally 40 mils thick.

Air bloc 17mr can be applied down to 20 f 6 c. The products work equally well as air or vapor barrier on precast concrete cast in place concrete masonry concrete block interior and exterior gypsum board styrofoam primed steel aluminum mill finish anodized aluminum primed galvanized metal drywall and plywood. Call us at 800 342 5976. Ccw provides three types of air barriers.

Air barrier materials can also be provided with properties which also class them as vapor barriers. The history of cold climate vapor barriers itself is a story based more on personalities than physics.