caulk

Getting the Biggest Bang for Your Air-Sealing Buck

Posted on January 31,2015 by user-756436 in air leakage

Most new homes are leaky. In the typical new home, significant volumes of air enter through cracks near the basement rim joists and exit through ceiling holes on the building’s top floor. These air leaks waste tremendous amount of energy.

What Makes the ‘Best’ Air Barrier?

Posted on January 31,2015 by ScottG in air sealing

Bill L. is planning a high-performance house in Massachusetts and is wrestling with options for the air barrier, that all-important building detail that enhances both energy efficiency and building durability. Above-grade walls will consist of a 2x4 structural frame sheathed in 1/2-inch plywood, followed by I-joists packed with cellulose insulation, another layer of 1/2-inch plywood, a corrugated plastic product to provide an air space, and fiber-cement siding. The primary air-barrier plane will be at the plywood over the 2x4 studs.

Air Sealing With Sprayable Caulk

Posted on January 31,2015 by user-756436 in air leakage

Homes insulated with fiberglass batts are leakier than homes insulated with cellulose or spray polyurethane foam. Until recently, fiberglass batt manufacturers shrugged off the damning air-leakage data, insisting that their batts could deliver the R-value promised on the packaging — and then changed the subject.

New Green Building Products — September 2010

Posted on January 31,2015 by user-756436 in can light

In this new-product roundup, I'll look at a cover for recessed can lights, a new caulk for polyethylene, and several new water-resistive barriers (WRBs) that promise better performance than Tyvek or Typar. A fire-resistant hat for recessed can lights A Delaware manufacturer named Tenmat is selling an airtight hat for recessed can lights. Tenmat light covers are made from mineral wool; according to the manufacturer, they are fire-resistant.

Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!

Syndicate content