That’s great news for your wallet and the planet. But 9 out of 10 homes in the U.S. are under-insulated, according to the Environmental Protection Agency (EPA), with older residences especially likely ...

We all know insulation is important to having a comfortable and energy-efficient home. Check out these 24 things to consider when thinking about adding insulation to your house.

Last week's column addressed cellulose insulation, which is the greenest and one of the most effective insulation materials available. But it isn't always practical or affordable to install cellulose.