Cape Cod house: Insulation
We are in the process of renovating the upper floor of our 1.5 story Cape Cod style home. We are having closed cell spray foam applied directly to our roof deck to fill the rafter bays (3.5″ depth).
I know that adding insulation over the roof deck is the ideal way to further improve the R-value of our roof but…
I will be cross-strapping the rafters with prior to hanging new dry wall and was wondering if there was an opportunity to add additional insulation under the rafters.
I was eyeing something like the RockWool ComfortBoard, continuous under the rafters in the upper attic and behind the kneewalls, and separated by the strapping in the sloped ceiling.
Is this something that can be done? Or should I drop the idea?
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