Foam Shrinks, and Other Lessons
What we learned from updating a 16-year-old deep-energy retrofit
Wrapping an Older House with Rock Wool Insulation
The designer of a deep energy retrofit project in Massachusetts specified 6 inches of mineral wool insulation for the exterior side of the walls
A Real Chainsaw Retrofit
Builders in Maine pull the cord on a Stihl chainsaw and cut off some roof overhangs
Service Cavities for Wiring and Plumbing
Designers of superinsulated houses are developing new ways to disentangle utility runs from insulated wall and ceiling assemblies
Can Polyethylene Be Used as an Air Barrier?
A material that's fallen out of favor might still have a legitimate use
Is There Such a Thing as a Perfect Building Envelope?
The insulation method proposed by this GBA reader requires a lot of foam
Can Exterior Foam Insulation Cause Mold and Moisture Problems?
A thick layer of rigid foam insulation amounts to a vapor barrier on the outside of a house. Won't this trap moisture and rot the OSB?
Architects Talking About Air Barriers
Two Maine architects discuss several ways to create a good air barrier
Getting Insulation Out of Your Walls and Ceilings
The PERSIST technique puts insulation where it belongs
‘Innie’ Windows or ‘Outie’ Windows?
When walls have exterior foam, where do the windows go?