Trying to finish my basement. Previous owners had already partially finished it in that they put up foam board on the block walls, then 2x4 walls, and then dry wall (they did not tape, mud, or finish the walls at all). They did not put anything in the cavity of the wall. To meet code I've gotta get a minimum of R13 so I have to add some form of insulation.
What I'm hoping to find is foam that can be sprayed into my finished walls so that I dont have to pull all the dry wall down. Any one come across a product or company that offers a product/service like this? If not I'll have a fun weekend of pulling down dry wall that was nailed in place