I've got an old shed that I'm in the process of insulating. The roof is fairly flat and consists of 2x6's running from top to bottom over about 20' with a support beam in the middle. I'm getting ready to install insulation in between each beam and want to allow for some ventilation above the insulation. I was going to just drill some holes at the top and bottom of the roof, actually on the outside walls high enough that it has access to the "cavity" between each set of beams. 1) Will this work? 2) How big should the holes be?
Thanks for any suggestions, Nate Baxley