Basement Project: Insulating Foundation Walls

I’ve decided to start this project by lining the walls with Owens Corning Foamular 250. It comes in 8′ x 2′ sheets and costs about $20 at Home Depot.   It has an R-10 rating, which might be sufficient on its own, but I think I’ll add unfaced insulation to bump it up even higher.  I’m  staying away from faced insulation on the perimeter walls because I don’t want to invite mold to the party.  I’ve attached it to the walls using Loctite PL300 foam board adhesive.   The joints are sealed with sheathing tape I found on Amazon.

Next up… starting  my first wall!

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