I see your stage. I have never worked with fiberboard. Can or not it's taped and viewed as a responsible Principal air barrier?The GBA Web-site doesn't provide custom made aspects. That is what an architect or an engineer is for; I suggest that you choose to seek the services of 1.If you wish to Blend air-permeable and air-impermeable insulation, T

Many thanks for that responses. We will never A/C the setting up (It's going to be photo voltaic run). The wind is pretty frequent, however it is a humid natural environment, so moisture Command is absolutely on my brain.This is a code violation to install an air-permeable insulation like fiberglass batts between unvented rafters. It's also a nasty