Insulation & Air Sealing

For cutting rockwool insulation, retire your old bread knife and pick up a pair of these

Glue the rim joist, caulk the gaps, and overhang the wall sheathing to tighten this leaky building assembly

Rinse off with cold water before the hot shower.

Whether using roof trusses or stick framing a roof frame, if you make space above the exterior walls, your energy performance will thank you.

Using theatrical smoke to illustrate air leakage pathways to customers and new employees

Exterior insulation can create transition problems. Here are a few solutions

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