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- Air barrier for existing masonry party wall?
- Zone 4 unvented cathedral retrofit challenge – 2″ closed-cell spray foam + open-cell fill?
- Cut-and-cobble roof follow-up: Permeability / R-value relationship
- Central vac venting and heat recovery units
- Solution that will allow me to spray foam sloped part of roof and dormer roof mid-construction
- Vapour retarder – main floor ceiling behind the kneewall
- Polyethylene foam as insulation
- Spray foam: manufacturer vs. codes
- Suggestions for a natural gas direct-vent fireplace that is super airtight?
- Closed-cell spray foam insulation: between rafters or joists?
- 1988 bi-level building practices and energy retrofit
- Air seal exterior board sheathing from inside?