Air Vapor Barrier Details

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.

Air vapor barrier details.

It reduces air leakage and uncontrolled airflow from the building envelope prevents moisture ingress and helps improve indoor air quality. They dramatically improve building energy efficiency indoor comfort and longevity. Air shield self adhering air vapor and liquid moisture barrier is part of a total w. Air bloc 17mr cures to a tough monolithic rubber like membrane.

About air vapor barriers. Meadows system to complete the building envelope. The history of cold climate vapor barriers itself is a story based more on personalities than physics. Ccw provides three types of air barriers.

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. Perm a barrier products help create complete building envelope solutions. 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. It does not require the use of a primer on most construction surfaces.

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. Options for above and below grade applications are available. Air bloc 17mr can be applied down to 20 f 6 c.

It is a roll type product that is nominally 40 mils thick. Contractors can apply them easily to most commercial building surfaces including concrete green concrete steel brick and modular vinyl. Low temperature application down to 20 f 6 c with no additives required. The membrane s controlled thickness is fabricated from cross laminated polyethylene bonded to specially modified asphalt.

Impermeable to air moisture vapor and water blueskin sa is designed to install easily on a variety of prepared substrates. 3m air and vapor barrier 3015 is an air moisture and water impermeable film membrane with an aggressive high tack pressure sensitive acrylic adhesive. Call us at 800 342 5976. 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. For fast and simple installation perm a barrier products come in sheet and liquid options and in vapor permeable and non permeable technologies.