Insulation & Air Sealing
You can use your hand to detect some air leaks, but smoke puffers make other air leaks easier to "see."
Soffits should be tight boxes hidden in your ceiling.
Crawlspaces offer all of the headaches of a basement and none of the benefits.
But some buckets are more relative
Why a rain screen wall is important to the energy and durability detailing on a Passive House.
How to detail the foam at corners and connections when tightening the energy efficiency of an old house
Roofs get wet at night—Heat flows through the easy path—Framing is a bridge.
Electrical outlets, plumbing pipes and bathtubs are underestimated in their importance.
The second layer of foam is the air barrier and drainage plane.
New energy codes are coming (very) soon; many states are jumping straight to the most aggressive one