I haven't convinced dude about his roof yet. That's why I began with the wall and soffit sealing. He is convinced that the corrugated white roof and the felt paper under it will reject enough heat from the sun. After all, he has two roofs now, right?
He is so convinced of a few things with the fiberglass batt that I'm not sure I can change his mind. He doesn't believe he will have a vapor barrier sandwich if we staple the facing to the downhill edge of the rafters. He believes the facing adds r value. Worst of all, he is confident that we will get r19 out of the roof deck, air gap, and 4 inch thick r13 batts.
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