Can I drill holes in my wall and fill it with spray foam? #sprayfoam #insulation #homeimprovement

Can I drill holes in my wall and just fill it with spray foam? Unfortunately, no. With 2-pound closed-cell foam, we need to see the whole cavity, know we got the job done properly. We can only lift it or do 2 inches at a time to have proper cell formation. And third, we use similar products to actually lift driveways, lift grain silos, and sometimes even whole houses. Just think of that pressure. Your drywall doesn't stand a chance.