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.

The lessco air vapor barrier box can be used in many different configurations. The ceiling box comes with an adjustable hanger bar for ease. It lets wall cavities dry out to help prevent mold. The lessco air vapor barrier box was developed in 1985 by stephen lentz an airtight homebuilder at that time.

In summer when humidity is high it increases permeability so that moisture can escape as air tightness is maintained. For extra protection against moisture the membrain continuous air barrier and smart vapor retarder is your weapon of choice. The vapor barrier box is designed to meet the energy efficiency requirements of modern homes. But it can be used in outside walls and ceilings.

This helps control heating costs in the winter and cooling costs in the summer. Low voltage wiring application. This lessco air vapor barrier box is designed to attach to a wall or ceiling frame and can contain up to 3. Roll with dimensions of 39 x 100.

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. It was invented for use in energy efficient airtight housing. In winter when humidity is low it continues. F5 air vapor barrier is available in a 325 sq.

However cold air often finds its way through missed holes and cracks and an electrical box by itself offers no protection and unless ensure that it is has a vapor barrier you run the risk of it corroding and causing future electrical problems. Lessco low energy systems supply company inc. 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. 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.

They feature a foam gasket that provides a vapor tight seal preventing the free flow of air through the box.