I see your point. I haven't worked with fiberboard. Can it's taped and deemed a reputable primary air barrier?Many thanks again. The roofer agrees that 2x4 framing to boost the peak over the vented attic might be a workable Alternative to match up the roof traces.If you want to develop an unvented insulated roof assembly, you most likely don't want

You explain your proposed air barrier as "taped felt." I don't Imagine asphalt felt might be effectively taped, and I do not think that asphalt felt makes a very good air barrier.Regardless of whether you choose to make it vented or unvented, get the main points ideal — mainly because every single cathedral ceiling delivers chances to produc