Jeff Lilly, owner of the aptly named Jeff Lilly Restorations, did just that by fabricating a one-off, fiberglass air cleaner. Based on an off-the-shelf air cleaner base, the idea is simple ...

Just make sure the fiberglass batts in the wall don’t contact the foundation. Foam insulation is installed in large sheets, usually no less than 11/2 inches thick, over the entire surface of the ...