Tag: vapor retarder

How to Become a Building Enclosure Control Freak

Prime: prime Subtitle: The fundamentals of controlling heat, air, and moisture Images: …

September 23, 2015
What Happens When You Put a Plastic Vapor Barrier in Your Wall?

Subtitle: A look at the physics of humid air and cool surfaces Images: A lot of people have heard advice about vapor barriers and vapor retarders. Many of them have walked away confused. A big part of the problem, I think, is that they’ve been told what to do — “Put it on the warm-in-winter…

April 30, 2014
Should the Paper Facing of Batt Insulation Face the Inside or Outside?

Subtitle: The surprisingly simple answer follows from the variable permeance of kraft paper Images: If you install fiberglass batt insulationInsulation, usually of fiberglass or mineral wool and often faced with paper, typically installed between studs in walls and between joists in ceiling cavities. Correct installation is crucial to performance. * with a kraft paper vapor…

February 27, 2013