Developed by an American
home-builder for the American Green building market!
Cold air infiltration/warm air exfiltration occurs through electrical boxes in exterior walls and in ceilings. This leakage creates higher heat loads and warm air exfiltration can also carry water vapor that can condense in the wall or attic cavity creating rotting action or mold growth
The LESSCO® Air-Vapor
Barrier Box, properly installed, can eliminate these leaks; creating
a more energy efficient, healthier and more comfortable home!
LESSCO® Box is made of thicker & stronger polyethylene
to resist cuts & tears during installation. The rigid construction
also makes the LESSCO® Box easier to handle & install.
LESSCO® Box has a unique hinged feature (Patented) that allows
easy installation of virtually any standard electrical box.
This allows the electrician to add just one item to his inventory
instead of 4 additional airtight electrical boxes for airtight
construction, taking up less space and helping to keep his inventory
LESSCO® Box is only INSTALLED by the electrician and SEALED by the air sealing contractor thus relieving the electrician from
any liability for damage or mold growth associated with air or
The LESSCO® Box DOES NOT have to be installed "perfectly
square" with the finished wall material, on the framing member,
to insure an airtight installation
The LESSCO® Box protects the seal made around the wires. The
electrician cannot destroy that seal while pulling on the wires
during the finish wiring process.
The LESSCO® Box is sturdy & reinforced making it capable
of withstanding the pressure needed to make a complete seal with
the air vapor barrier material.
The LESSCO® Box allows inspection and verification of a complete
seal with the air vapor barrier material BEFORE the wall is closed.
The LESSCO® box DOES NOT GAMBLE that the installation of finish
wall materials will complete the seal with the interior air vapor
- The LESSCO® Box does not rely on sealants or glue for installation or sealing and therefore cannot fail after the wall is closed and the caulk or sealant fails.
The LESSCO® Box does not have a flange or air vapor barrier
material in contact with the electrical box that can be destroyed
by the drywallers’ router thus destroying the airtight integrity
of the installation.
If the LESSCO® Box is poorly installed or a mistake is made
during installation and a leak is detected during a blower door
test or by the homeowner during a cold, windy, winter day, the
repair is QUICK, EASY and INEXPENSIVE.
Remove the outlet/switch plate.
Drill a 1/4" hole through the wall finish material next
to the electrical box.
Simply inject the LESSCO® Box with foam (i.e. Great Stuff
or Handi Foam) to seal the leak.
NOTE: THE ELECTRICAL BOX CANNOT
BE FILLED WITH FOAM
AS THIS CONSTITUTES A FIRE HAZARD AND IS AGAINST
the outlet/ switch/fixture cover which also covers the 1/4"
Result: CUSTOMER COMPLAINT IS EASILY SOLVED
"LESSCO® Box Advantages" clearly make the cost of
the LESSCO® box a worthwhile, convenient and cost effective
addition to to all Green home building or remodeling projects!
LESSCO® Air-Vapor Barrier Box conforms to the new airtight
electrical box building code in Wisconsin and Minnesota.
LESSCO® Air-Vapor Barrier Box has a large interior work
x 7-1/2 x 2-7/8 for easy installation
new and improved LESSCO® Air-Vapor Barrier Box has incorporated
a unique "hinge" feature. In the past, certain electrical
sidewall and ceiling boxes were difficult or impossible to use with
the LESSCO® Air-Vapor Barrier Box. The new unique hinge
design makes virtually all current electrical boxes compatible with
the new and improved LESSCO® Air-Vapor Barrier Box.
to follow instructions (click to preview) are included
with each carton of LESSCO® Air-Vapor Barrier Boxes
to make installation fast and easy.
questions?? Don't hesitate to contact us!
|To find a distributor near you or for more information use
our handy information request form. We'll get back to you as soon
as we can!
The LESSCO Air Vapor Barrier Box
Proven effective in Air Tight, energy efficient Green building since 1985!
Low Energy Systems Supply Company, Inc.
W1330 Happy Hollow Road
Campbellsport, WI 53010
Phone: 920 533-8690/FAX: 920 533-3306