Metal roof on home, who has one?

Just deck the roof as normal and strip it out for the metal. Get your insulation blown in the attic and you will hardly ever know its raining unless you look outside.

12 inches of cellulose in your attic and you dont hear it raining.

I personally want to hear it and open the window or door toward the carport

Built a house 6 months ago and went with a metal roof. I also had the roof decked with 1/2 inch thermostat radiant barrier plywood then stripped it with 2x4's. All of the edges are capped so wind is not an issue. I did spray foam insulation on my ceilings and I can only hear the rain if it is an absolute frog strangler even then it is not that loud. I love it and wouldn't change a thing about it.

Definitely putting a metal roof next time on my place. Screw asphalt shingles, they don't last and cause nothing but problems.

Not too worried about holding the metal down, the roof is 8" center match covered by the shingles.

I'll just use 1x4s so there's less space.

As far as rain noise, I find it relaxing.

LC

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then stripped it with 2x4's. All of the edges are capped so wind is not an issue.

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So with the edges trimmed w/ 2x4's, you have a permanent air gap without that holds the air? (no circulation?) I'm trying to get my mind around these details.

The reason I'm so interested in the details (especially concerning wind) is that I'm tired of having to replace a bunch of shingles every time I go to my place in New Mexico. The month of July is basically one-month hurricane.

We went with the decking because it "tied" the structure together making it stronger.

If you are worried about wind uplift on the eaves and gables edges, you can get specs from the metal panel manufactures that show how you can install clips/ cleats along the edges to prevent the wind from lifting the roof on the edges. There is also techniques to cleat the ridge caps to prevent them from being blown off by the wind.

And if you go with a higher profile corrigation, like an R-panel, you can buy what is called "bird stop", its a rubber gasket that's installed between the panel and drip edge on the eaves that closes up the corrugations to prevent insects, etc. from going under the roof. It also prevents wind from blowing up under the roof.

Back in the late 80's, early 90's, I worked for a wholesale roofing supply company in South Florida as a salesman. After Hurricane Andrew came through, they developed these specs to combat the roofing failures that were caused by the wind.

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with the edges trimmed w/ 2x4's, you have a permanent air gap without that holds the air? (no circulation?) I'm trying to get my mind around these details.

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The metal is corrugated so you have the ridges every 8 or so inches.This allows for airflow between the metal and the decking.There is a trim piece on the facia board that supports the slight overhang and trims it out.

BnB probably didn't have decking if it was really old, probably just furring strips connected to rafters. I put a metal roof on my dad's place. He had shingles with plywood decking underlay, I just screwed the metal straight down over the shingles without furring. You just have to make sure to use the proper screws. Cant even hear the rain.

The metal I used was painted white. You can definitely tell the difference in temp now in the attic during summertime.