Metal roofs are louder, yes! This no worse than any other. It depends on how its supported to a large degree, and if there's insulation underneath and of course how heavy the rain is. So my RV shed built out of this, with just joists supporting, is loud in a heavy rain or hail. My house which has car decking, then insulation, then a membrane under the metal is not that bad except in hail. (That roof though is a heavier gauge 12" wide style roof. )
Yes, 9” from center of rib to center of rib, 3’ total, plus about 1-1/2” out to egged, so the total panel width is about 37-1/2” wide.
I used it for the roof and sidewall of a "breezeway woodshed" so it was screwed to purlins. There was no need to put building paper under it. If I was using it over OSB roof sheeting or plywood sheathing, I would definitely put underlayment paper between the sheathing and the metal.
I ice and water entire subroofing. Do some measurements to see how square your building is, install first sheet with a couple screws, place next sheet up and check how true the lower end is running. Screw both sheets completely. Install next and screw. Do not over tighten screws, just enough to squeeze rubber washer. Over tightening screws will make rubber washer fail.
yes they do
You can paint. Finish would have to be sanded or scuffed so new paint will stick. We also have this panel available in many colors in which it can be special ordered. You will pay more for a special order.
You can use a circular saw with a metal blade.
I am not sure what you mean by depth. The panels are 36" wide coverage x 8' Long.
The panels can be cleaned with just soap and water. I do not know about being waxed.