"Ed is right about the spacing between the rafters. They vary from but most are 18+ inches.
Someone offered to blow cellulose into the interstitial space between the knee wall floors and the ceiling below but I may have live knob and tub wiring…"
"A NEW question about knee wall insulation.
This is in regard to a 1907 house with no insulation in the knee wall areas. The floors of the knee wall space are finished. The triangle spaces on top of the knee wall are stuffed with rock…"
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