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.

Five videos about how to install a subfloor over thick insulation without sleepers. The insulation can be over a concrete slab, or not...

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

Like an out-of-plumb wall, an insulated and unvented roof can work well—or not.

The first layer of foam is mostly an insulation layer; the outer layer is the air barrier and drainage plane. This video is about the first layer.

A retrofit solution that works great for a low-skill workforce—like volunteers

A saw and a knife that cut rockwool insulation like a "laser"

If you can't build to stay dry, build to tolerate wet

Make a route for drainage, protect the structure, and use water-tolerant materials to rebuild