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...

Stretchy gasket tape, flanged workboxes, and sealant can solve a HOLE lotta air leaks

Two types of tapes for two air sealing applications

Interior membranes can be part of a high-performance wall assembly as a vapor retarder or as part of an air barrier system

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

There are six sections and 22 subsections to the Thermal Bypass Checklist. These 16 videos, animations, articles, and podcasts cover all six sections.

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

 

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

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

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.

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

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.