Insulation & Air Sealing
A thermal break and solid backing puts the window on the outer face of a thick wall. Now, there's room on the inside window sill for cats and bowling trophies
Stack effect is relentless: it is always working, when you’re awake or asleep, even during blackouts. And it feeds on itself.
When air sealing a house, begin with the biggest holes and work toward the small ones
"In order to maximize the buildable area on the infill lot, we had to go fairly deep and do some extensive shoring."
—Dan Whitmore of Hammer & Hand
Offset the joints and seal the gaps to keep air leaks out of the thick walls
This is the first episode of 7 Minutes of BS (building science). We break it down with engineers and building scientists.
What the HERS index is and how to make it work for you
Windows cannot rest on the foam, so they hang from wood bucks
Letting the brick dry evenly is the key for old masonry walls that want to leak less energy
Dr. Bailes does the math
Wide tape spans the many layers of a thick wall to make an air tight and water tight seal
Window banks need to line up neatly for the trim to work out. Foam walls add the extra possibility of compressing the backing. So there's that.
Adding brick to the outside of a house complicates insulating outside a slab. So Insulate inside.
A deep energy retrofit in Concord, MA illustrates everything you need to know to bring a house to energy überville
Built tight and verify. And then ventilate.