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SHIFT 09-06-2012 09:31 AM

material choice: metal vs fiberglass vs Ondura
I'm building a shed with a gambrel roof with dormers and a flared out eave. I was originally planning on using asphalt shingles but decided to switch to metal due to a relatively low cost delta and the hope that I could avoid having fasteners stick through the roof decking. Now I've come across a few other options that look attractive because of light weight and ease of cutting: Ondura and fiberglass panels.

My question is what are the pros and cons of Ondura vs fiberglass vs metal?

I'll try to upload a pic to help you see my plan soon.

joecaption 09-06-2012 10:20 AM

All of those are still going to have to have fastners which will still go though the sheathing.

Most metal roofing does not use sheathing under it.

Why is the fastners sticking out an issue?

SHIFT 09-06-2012 11:23 AM

Fastener stick through is an issue because there is a loft which will sometimes be occupied.
I think I can avoid fastener issues by using firing strips. If there is no decking I won't have that issue at all.
Any advice about the material?

SHIFT 09-07-2012 09:57 AM

I guess I won't be posting a pic. I don't see how to upload one here and it's a pita to find somewhere else on my phone.

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