Infiltration of Outdoor Pollutants
How building airtightness and pollutant characteristics affect the transport of outdoor air pollution into the indoor environment
According to DOE’s Building America program data, typical residential ductwork efficiency is about 67%. That means that if you install a 90% efficient furnace, your system efficiency would be just over 60%. Another way to look ... [continue reading]
At Pure Energy, we are finding more and more IAQ problems caused by pollutants that are supposed to be outside the living space, but are being drawn into the living space by unbalanced house pressures. [continue reading]
Carbon monoxide (CO) is really nasty stuff. It’s odorless, colorless, and neutrally buoyant, and it can make you stupid before it kills you. It’s not the kind of stuff you want ... [continue reading]
Why unhealthy homes cause unhealthy occupants. [continue reading]
Building performance renovation contractors and Weatherization Assistance program workers daydream of making homes healthy, comfortable, energy efficient, and durable. But sometimes when they are in the middle of a project, they find their dreams have ... [continue reading]
You may have heard of houses and neighborhoods exploding due to gas leaks in old pipes under the streets. Inside the home, detecting combustible-gas leaks is an important part of combustion safety testing. Gas connections ... [continue reading]
We build crawl spaces because they are cheaper than basements. But controlling moisture can be a challenge, depending on the climate zone. [continue reading]
A 2015 study, “Impacts of global warming on residential heating and cooling degree-days in the United States,” comparing heating ...
“Why do you need to cool and heat the whole building? Why don’t you cool and heat ...