Insulation & Air Sealing

Aug 18 2018

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

Aug 4 2018

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.

Aug 1 2018

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

Jun 23 2018

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

May 3 2018

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

May 1 2018

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

Apr 21 2018

Closed Cell, Open, Cell, High Density, Slow-Rise, or Fire Retardant?

Apr 3 2018

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


Mar 29 2018

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.

Mar 28 2018

Frame the perimeter, sweep the field, repeat.

Mar 27 2018

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

Mar 20 2018

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

Mar 6 2018

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

Feb 27 2018

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

Feb 1 2018

Turns out, ducts buried under insulation actually can work to save energy and eliminate condensation inside the ducts. If you seal and insulate them first


Jan 12 2018

How to tell if the mix is right, how to fix it if it is not, and some other trouble-causing suspects

Jan 11 2018

An affordable insulated slab foundation suitable for climate zones 4, 5, and 6

Jan 4 2018

Everything* you need to know about adding insulation to the outside of old homes with cold bones

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