Furring and foam on the INSIDE for better walls in really cold places.
Insulation & Air Sealing
An affordable insulated slab foundation suitable for climate zones 4, 5, and 6
A superinsulated sunroom might sound like an oxymoronic idea, but it is not. Just use triple glazed windows and thick foam over the wall framing and roof
A deep energy retrofit in Concord, MA illustrates everything you need to know to bring a house to energy überville
Built tight and verify. And then ventilate.
You can't stop heat flow, but you can keep your floor from becoming a big ol' heat sink
The final step: center it in the opening, and seal the perimeter
Flashing an In-Betweenie window is a lot like flashing an Innie or an Outie, only it is somewhere in between
Everything there is to know (well, almost) about blower door testing with a few engineer-y jokes along the way.
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
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