Learn how to wrap a house with rigid-foam insulation
for big gains in energy efficiency and comfort
with David Joyce VIDEO TRANSCRIPT: Narrator: One of the most effective ways to boost an older home’s energy performance is to wrap it in thick foam. This adds R-value, but most importantly it seals the air leaks that infiltrate roofs and walls. This video series focuses on an exterior retrofit of an old home in Massachusetts.
MORE VIDEOS IN THIS SERIES
Insulation Retrofit Complete
David Joyce, Synergy Construction: So we’re here in Millbury, Massachusetts, and we’re going to be performing a deep energy retrofit which should, in general, lower the home’s energy use by about 70 percent.
Narrator: In this video series, David Joyce of will teach you how to prep the house for rigid foam by cutting back the overhangs and installing a weather-resistant barrier to the roof and walls. Also, you’ll learn how to install multiple layers of foam, detail the inner sections, and deal with foam compression issues. Finally, you’ll learn how to flash a window opening in a thick wall so that it will be air- and watertight. One more thing: It’s important to test for lead paint on old houses before undertaking an intensive retrofit like this. If lead paint is present, follow the EPA guidelines for disposal. The house in this video was renovated before the EPA rule took effect. But the crew wrapped the old siding in plastic and disposed of it along the lines of the lead rule anyway.