Insulation & Air Sealing

Thin foil can block massive amounts of heat transfer, but it needs a massive temperature difference to be effective. So, insulation sort of makes radiant barriers irrelevant.

A collection of five videos on a Passive House Retrofit in Sharon, CT (climate zone 5) executed by Ben Bogie, Built to Last, LLC

For walls with a pre-applied weather barrier, make sure the tape is compatible with the WRB coating—or use a primer

Keep mechanical equipment within the envelope to improve the quality of houses and homes

The most effective (and easiest) time to detail the air barrier is during the framing stage. If it isn't specified during design, ain't no way the framers are gonna get it right.

18 Videos, articles, and animations showing you how to get through Section 1 of the Energy Star Thermal Bypass Checklist: continuity between the air barrier system and the thermal envelope.

Framing a roof with I-joists over the existing roof makes a ton of room for insulation and offers a short lesson in vapor movement through assemblies

Condensation is when moisture in the air hits a cool enough surface to convert the vapor into water.

Four ways to prevent ice dams in three types of roof, for two climates in one video. Boom.