Forget Vapor Diffusion — Stop the Air Leaks!

December 3rd, 2012

Building codes are finally beginning to recognize that air barriers matter more than vapor barriers and spray foam insulation is a major contributor. By: Martin Holladay, greenbuildingadvisor.com This elicited a comment from Bill Rose, research director of the Building Research Laboratory at the University of Illinois in Champaign. “We might imagine a future in which the building code sections that address the vapor barrier would all go blank,” Rose wrote…. Read More

Air Leaks Waste Energy and Rot Houses

December 3rd, 2012

By: GreenBuildingAdvisor.com One third of the energy you pay for probably leaks through holes in your house. Air leaks can also cause moisture and indoor air quality problems. Stopping air is the second most important job of a building enclosure   Next to rain, air leaks through walls, roofs and floors can have the biggest effect on the durability of a house. Uncontrolled air flow through the shell can not… Read More