Barriers, air gaps, continuous insulation, and redundancy give durability to a new crawlspace

A dry and healthy crawlspace is sealed tightly against water and air leaks

The premier season of Weatherization Nation was shot in NW Washington DC where we tore off an unfortunate addition to the back of a 70+-year-old brick house and we added a two-story addition which nearly doubled the sliving space.

Can a wall plummet from R-50 to R-12 because of the studs?

The Model Remodel Show followed the progress of the 2017 Model Remodel project by Professional Remodeler magazine.

Furring and foam on the INSIDE for better walls in really cold places.

The @EnergyVanguard investigates an attic insulation job in Charleston, SC. #TheBadNews: from zero to nine inches thick in one roof. #BadDogNoBiscuit.

Dew point differs from relative humidity in that it measures exactly how much vapor is present. With relative humidity, it's all relative.

Snap a line, put the panel on the line and nail it, tape the seams, and where to snap that line in the first place.

Your electrician can make the insulation work better and easier to install

Insulating the shell after blower door and IR camera-assisted air sealing

You can't simply go down to the hardware store and buy a box labeled air barrier

Roof framing, window options, and a mechanical advantage add up to lower bills and a higher quality home

Low-e coatings screen infrared heat from moving through the glass, either inward, outward, or both

Matthias Wandel has a pretty extensive history devising ways to trap mice. The winters are long in Canada, and Matthias seems to have no shortage of mice in his shop.

Vapor barriers cause a lot more harm than good in many parts of North America. Understanding vapor barriers begins with knowing what it means to be one

Simple upgrades to steps you take anyway can significantly boost the energy performance of a home

Outside insulation is an effective way to keep heat in. The devil is in the details, such as this one