LEED Points

Tag: air leakage

  • How Duct Leakage Steals Twice

    Subtitle:  Where duct leaks occur matters as much as how much leaks Images:  …

  • The History of Peeling Paint, Insulation, and Vapor Barriers

    Subtitle:  When painters objected to painting insulated houses in the 1930s, building scientists latched onto the wrong solution Images:  Back in the 1930s, a rash of paint-peeling showed up across North America. One thing that most of these homes had in common was insulation in the walls. Painters put two and two together and decided…

  • Is the Passivhaus Program Truly Innovative?

    Subtitle:  Joseph Lstiburek said it’s the ONLY place where innovation is happening — but is he right? Images:  Last month, Joe Lstiburek gave the fifth annual Twitterview † from his crawl space. (Peter Troast of Energy Circle has published the transcript of this year’s event.) One of the pearls of wisdom dispensed by Joe was…

  • An Interview with Dr. Joseph Lstiburek

    Subtitle:  Joe explains BSC’s new ventilation standard, why tracer gas is a better measure of infiltration than blower doors, and his plans for a ventilation standard for existing homes Images:  Dr. Joe Lstiburek of Building Science Corporation is on a mission. The issue is residential ventilation. He contends that the residential ventilation standard, ASHRAE 62.2A…

  • Does Your Air Barrier Work in Both Directions?

    Subtitle:  An experiment comparing housewrap and taped sheathing under positive and negative pressure Images:  …