Crawl Space Insulation in Rochester, MN

Your crawl can be insulated at the floor joists, or the walls can be brought inside the thermal envelope with foam or rigid board and a sealed vapor barrier on the dirt. Rim joists are part of that job. Cold floors in winter often start under the house, not just in the attic.

We do not invent a frost-depth number. You confirm local code for a closed crawl versus a vented one. Moisture, standing water, and damaged fill get called out before insulation goes in so you are not burying a wet problem.

Rochester-area homes with unfinished crawls see a mix of vented and closed setups. The estimate follows what we find under your floor, not a one-size package.