Energy Efficiency

Touted as a six-in-one solution to thermal bridging in wall assemblies, the thermally broken Tstud is said to be a cost-effective, energy-saving, eco-friendly framing stud for the ultimate high-performance building envelope.

The North American Insulation Manufacturers Association (NAIMA) recently rolled out a voluntary program to provide third-party certification that fiberglass and mineral wool batts and rolls comply with FTC labeling requirements for their stated R-value.

U.S. Sens. Rob Portman (R-OH) and Jeanne Shaheen (D-NH) introduced a bill designed to improve energy efficiency in the federal government, as well as in commercial and residential buildings and the industrial sector.

The Metal Construction Association (MCA) has compiled case studies of impressive buildings roofed with insulated metal panels (IMPs).

The 2019 Annual Builder Practices Survey, which had more than 1,600 homebuilder participants this year, provides some powerful insight into the thermal products market in the U.S.

No other insulation system I am familiar with provides the real r-value that spray foam does, accomplishes the air-sealing it does, or thwarts vapor flow as well.

Spray foam can be a great material, but understanding its use is often hindered by overeager installers who emphasize the magic rather than the real properties of the products.

The photos in this article provide an excellent side-by-side example of the same residential wall system, including the same windows, flashing, stud type, interior vapor barrier, and cladding system.

Builders who use natural materials in the United States have seen interest grow in "hempcrete," a renewable building material made with hemp that can take the place of traditional drywall, insulation and siding.

The energy performance of the homes I build is important to me, but it turns out there are other important reasons for focusing my air-sealing efforts on the garage wall.