LEED Points

Tag: control layer

  • Buildings Don’t Need to Breathe

    Prime:  prime Subtitle:  The word “breathe” just confuses things Images:  Breathe. It’s a good thing. We need to breathe to live. Breathing consciously relaxes us. “Breathe” is also the name of a great song by Pink Floyd from the Dark Side of the Moon album. Breathe, breathe in the airDon’t be afraid to careLeave but…

  • Using the Pen Test for Control Layers

    Subtitle:  It’s an invaluable tool for architects and contractors Images:  < p>I listened to the IAQ Radio podcast a few weeks ago when they interviewed Lew Harriman and Terry Brennan, who were discussing the new moisture control guide published by the EPA last year. Brennan is the lead author of the document, and it’s a…

  • Understanding Air Barriers, Vapor Barriers, and Drainage Planes

    Subtitle:  These three terms refer to different materials that are easy to confuse Images:  Is housewrap a vapor barrier? What’s the purpose of building paperTypically referring to Grade D building paper, this product is an asphalt-impregnated kraft paper that looks a lot like a lightweight asphalt felt. The Grade D designation has come to mean…