Air Vapor Barrier Box

The product has been on the market and used throughout the united states including alaska since 1985.

Air vapor barrier box.

This lessco air vapor barrier box is designed to attach to a wall or ceiling frame and can contain up to 3. The lessco air vapor barrier box was developed in 1985 by stephen lentz an airtight homebuilder at that time. The vapor barrier box is designed to meet the energy efficiency requirements of modern homes. It lets wall cavities dry out to help prevent mold.

The lessco air vapor barrier box eliminates air leakage through electrical boxes prevents moisture damage in walls and ceilings improves energy efficiency. In winter when humidity is low it continues. Roll with dimensions of 39 x 100. They feature a foam gasket that provides a vapor tight seal preventing the free flow of air through the box.

The ceiling box comes with an adjustable hanger bar for ease. Low voltage wiring application. It was invented for use in energy efficient airtight housing. The lessco air vapor barrier box can be used in many different configurations.

Lessco low energy systems supply company inc. But it can be used in outside walls and ceilings. F5 air vapor barrier is available in a 325 sq. Air leaks can occur around electrical boxes in exterior walls and ceilings sometimes carrying water vapor that can condense in the wall and attic cavity leading to rotting mold growth and an increased heating and air conditioning load.

The rule for vapor barrier installation in cold climates is to have it on the interior with at least 2 3rds of your insulation on the outside of the vapour barrier. For extra protection against moisture the membrain continuous air barrier and smart vapor retarder is your weapon of choice. In summer when humidity is high it increases permeability so that moisture can escape as air tightness is maintained. The factory controlled thickness of the membrane ensures uniform barrier properties and the woven polypropylene film increases strength and has a non skid surface suitable for the bonding of subsequent layers.

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