Hi All, Just wondering if someone can give me a rough estimate for the cost toinstall a new garage roof that needs all new plywood and shingles on adetached garage?? Our 1940 detached garage roof is in pretty bad shape.When we get rain, water leaks inside, and pieces of wood from the roofare starting to break apart and fall all over the place inside thegarage. Luckily the beams inside the garage seem to be in good shape,but the garage will definitely need all new plywood and asphaltshingles. Going to try to get some estimates over the next few weeksfrom some different contractors, but just wondering if the experts herecan give me a few "rough' estimates now?? Also, the garage is 16 x 19 insize. Thanks in advance!

Falcongirl-I wonder if the rotten wood might make it a dangerous job? From your description, the roof might not support the weight of a roofer. It may be necessary to have a general contractor manage the job if an ordinary roofer can't do it.Also, the lowest bid is not always the best job. Talk to some of your friends about their roofing experiences, and if they would recommend their roofer.Fred

Average Cost For New Garage Roof??

Jun 09, 2012 43 Replies

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mark 14 years ago

Last week: Home Depot $13 for 1/2" exterior ply 4x8; $9 for 3/8"

35 yr laminated shingles $15/bundle, phone around small qty may be on special

Just pay someone $300-400 a square to pound in some nails

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bob haller 14 years ago

looks like plywood cost have dropped like a rock......

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mark 14 years ago

Nope, just good old everyday Canadian prices, less if you shop around

If you really want to save, get some 15/32 OSB for 6.97 a sheet.

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clare 14 years ago

That depends on the plywood. G1S is likely still double that or better, but a total waste on a roof.

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