Zone Pressure Diagnostics Webinar
Join Rick Karg, President of Residential Energy Dynamics, for this TEC hosted Zone Pressure Diagnostics (ZPD) webinar. Since its introduction around 1990, ZPD has become an established tool for finding indirect air leakage paths. This…
Continue ReadingBlower door testing
Diagnose problems in the building envelope with this simple, reliable tool. Air flowing in and out of a building can cause lots of problems; in fact, air leakage can account for 30 percent to 50 percent of the heat loss in…
Continue ReadingBeauty and the beast upstairs
The same features that are often added to the top story of homes to give them distinctive architectural beauty can also make them rather beastly to heat or retrofit. One-and-a-half-story houses, like the Cape Cod-style…
Continue ReadingAir sealing in occupied homes
Over the last decade, many new techniques have evolved for improving the airtightness of existing homes. With this increased ability has come the responsibility to be comprehensive. There are few areas of residential construction…
Continue Reading