I have a 19 year old, 25 year 3 tab roof. Not leaking yet, but if I get another winter out of it, I’ll be happy. The roof is hot deck, 34 squares, 4 hip, no dormers, no valleys, 8/12 pitch. Roof dimensions are about 40x75. Its 20 feet to the rake. Overhangs are four feet (feet not inches). All cathedral ceiling, 2x T&G with structural SIPS 1/2" plywood each side of 7 1/2" EPS. Overhangs are uninsulated hollow boxes - cheaper than SIPS.
Local AHJ will probably have a cow if we don’t tear off, despite deck design for slate or glazed tile.
Questions: is it worth adding a cold deck with furring and more ply or OSB? Either way, I think I’ll be required to put a 9 foot wide band of ice shield due to the width of the overhangs.
What are my chances of finding a roofer who would work with me on some minor carpentry and how would we agree on compensation? I want to do an shed dormer bump up to increase the height of a top floor window by six inches or so. We’d also be removing two skylights. And cutting down a cupola that is the only thing that leaks and only then in a real nor’easter.
FWIW, I’m looking at 30 or 35 year architecturals and am in SE New England.
thanks in advance.