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- Perimeter drain with step footing
- Attaching siding through rigid foam
- Construction over the winter
- Attic insulation and venting in an old timber-framed house
- Closed-cell spray foam under fiberglass for high R-value roof assembly?
- Air sealing and insulating detached garage with flat/low-sloping roof
- Quality windows
- Zone 5 metal stud wall with rigid
- Ductless minisplit selection, sourcing and positioning in a small high-performance home
- Insulating Ducts