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Old 09-11-2008, 07:22 PM   #1
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Metal over fiberglass shingles - steep slope


I am considering placing a metal roof over an existing fiberglass shingle roof. It is a 20/12 pitch. (true A frame house)

Would I need to remove the existing roof? This process could be a real pain on a 20/12 slope.

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Old 09-11-2008, 09:28 PM   #2
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Metal over fiberglass shingles - steep slope


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I am considering placing a metal roof over an existing fiberglass shingle roof. It is a 20/12 pitch. (true A frame house)

Would I need to remove the existing roof? This process could be a real pain on a 20/12 slope.
Metal roofing is often applied over shingles but that also depends on what system or manufacturer. Check out the "ask the experts" foum at metalroof.com they're very helpful.

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Old 09-11-2008, 09:32 PM   #3
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Metal over fiberglass shingles - steep slope


http://www.metalroofing.com/
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Old 09-11-2008, 11:22 PM   #4
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Metal over fiberglass shingles - steep slope


Quote:
Originally Posted by napper View Post
I am considering placing a metal roof over an existing fiberglass shingle roof. It is a 20/12 pitch. (true A frame house)

Would I need to remove the existing roof? This process could be a real pain on a 20/12 slope.
Pain? Gravity is your friend

Always better to start with a clean slate, especially when it comes to metal. If you can, do.
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Old 09-12-2008, 11:20 AM   #5
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Metal over fiberglass shingles - steep slope


You may not "Need" to do a tear-off, but if you want it to last and not have the fasteners back out from a toggling effect, then you should do a tear-off and inspect and repair the decking if necessary.

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