Zone 5-Coastal CT
Based upon my research here, talking with an energy consultant, talking with the contractor and the insulation contractor, I think I’ve come up with a modified insulation plan for my 1850’s major renovation. Of course the contractor and the insulation company wants to SPF the whole place. Huge money!
I’d appreciate any input anybody has on my plan.
1) Exterior walls-old nominal 2×4’s filled with CCSPF. Henry’s Blueskin over sheathing with attention to air leakage. Exterior insulation ruled out.
2) Attic 1 and 2-Vented-1″ CCSPF on attic floor and more in eaves below baffles. 16″-18″ blown cellulose on top. Seal all attic floor leaks first.
3) Attic 3-Conditioned for equipment on 2nd floor-6-7″ CCSPF to cover 2×6 rafters.
4) Basement conditioned, old and new concrete walls and floors- Dri-core floor 1″ from walls. 2×4 framing 1″ from walls. 1″ CCSPF on all walls and filling rim joists. 4″ FG batts in 2×4’s.
I’m still struggling with the new 2×6 walls and new flat roof areas.
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