Recent content by Dave KP

Here's a view of the basement side of the bumpout joist bays, and inside one of them, and some exterior shots. A problem will be the two that are blocked by the I-beams, plus all the nails make complicate things if I want to use rigid foam. This pro recommended 2" XPS on the bottom and top of...

Hi Dana, I'm not entirely sure. It's old. The underside sheathing looks and feels like thin planks that are nailed in, I'm guessing to the floor joists; I can't quite tell what's on the inside of the bays yet. (When we moved in, the opening of the bays were filled in with fiberglass, which of...

Hi, new here, I know this thread is 2 years old, but I'm hoping Dana or the OP is still around. I'm having a very similar issue. I live in Topeka, KS, so zone 4. 85-year-old house, plaster walls, no insulation to speak of. Our dining room has an area that bumps out - i.e., the floor joists...