
Insulation & Air Sealing


Blowing a thick bed of insulation into an attic is really a two-person job, but you can do it by yourself if you have to

An affordable insulated slab foundation suitable for climate zones 1, 2, and 3

A few really cool tricks and a Master Class at the end

The air sealing process for a high performance home with double-stud walls.

Tight makes right behind tubs and showers—because they can be *ruff* to retrofit

You can dig in to the roof without adding more insulation, but you can't dig far




The biggest hole in the bathroom

For the price of a drywall repair, you can look inside walls with a thermal camera at insulation and air leaks



Insulation does more than slow heat flow: it sells houses, future proofs, makes floor plans bigger, and sends your kids to college. Really.



Two packages for high performance homes. Vented and unvented roof insulation retrofits and exterior wall insulation details along with rainscreen wall details for furring strips.