Air Vapor Barrier Details

Perm a barrier products help create complete building envelope solutions.

Air vapor barrier details.

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. The membrane s controlled thickness is fabricated from cross laminated polyethylene bonded to specially modified asphalt. 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.

Meadows system to complete the building envelope. 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. For fast and simple installation perm a barrier products come in sheet and liquid options and in vapor permeable and non permeable technologies. Air barrier materials can also be provided with properties which also class them as vapor barriers.

Call us at 800 342 5976. An excellent discussion about the differences between vapor barriers and air barriers can be found in quirrouette 1985. The history of cold climate vapor barriers itself is a story based more on personalities than physics. Impermeable to air moisture vapor and water blueskin sa is designed to install easily on a variety of prepared substrates.

Air bloc 17mr cures to a tough monolithic rubber like membrane. 3m air and vapor barrier 3015 is an air moisture and water impermeable film membrane with an aggressive high tack pressure sensitive acrylic adhesive. They dramatically improve building energy efficiency indoor comfort and longevity. Low temperature application down to 20 f 6 c with no additives required.

It does not require the use of a primer on most construction surfaces. 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. About air vapor barriers. 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. Keep in mind however sheet polyethylene on the inside of building assemblies in cold mixed. Contractors can apply them easily to most commercial building surfaces including concrete green concrete steel brick and modular vinyl. It is a roll type product that is nominally 40 mils thick.

Air shield self adhering air vapor and liquid moisture barrier is part of a total w. Air barriers are essential for a high performing building envelope.