Best Way of Removing & Increasing Insulation In Attic
I want to remove the present old fiberglass insulation that is presently in my attic floor which is covered by nailed down wide floor boards. I have tried to remove these boards already but the wood is very old and it is impossible to pry up the nails. I cannot get at these nails from the side. Does anyone have any helpful info on removing them? The only thing I have come up with is possible drilling the nails out with a metal bit but not sure if this is the best way to go. Also I want to increase the depth of the joists by 3 inches to be able to add add'l insulation. I thought adding 3" strips the same width as the joists and nailing them into the joists but is there an easier way? I want to spray the ends of the wall plates with foam insulation...is there one kind/brand of foam that is better than another? Are there any other web forums that would be helpful to me in this matter? Any suggestions greatly appreciated.