Insulation & Air Sealing
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
Vapor barriers cause a lot more harm than good in many parts of North America. Understanding vapor barriers begins with knowing what it means to be one
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.
For walls with a pre-applied weather barrier, make sure the tape is compatible with the WRB coating—or use a primer
Furring and foam on the INSIDE for better walls in really cold places.
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. It is about the continuity between various components of 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.
Why insulating on top of a house is better than insulating inside
Hands-on training with local pros at the largest construction event in the Northeast
A big problem, for roofs in cold climates, but what causes it and how can you fix it?