Answer: In some cases
Explanation: That just means who ever did the roof last didn't feel like scraping the old shingles off and with that many layers I wouldn't be surprised if the roof didn't last as long as the warranty says on the shingles |
| Srp inc. |
Answer: Never
Explanation: No only will this add to much weight to the rafters but if you should have a leak there is no way to find the leak. |
| Roofing Repairs 911 |
Answer: Never
Explanation: Not allowed by Code |
| Roofer Mike Inc |
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| ProMatcher |
Answer: In some cases
Explanation: By code, it is not allowed to install more than two layers |
| Suburban Steel Roofs |
Answer: Never
Explanation: Three layers of shingles will void your manufacturer and installer warranties. |
| JPS-WNC llc |
Answer: In some cases
Explanation: It depends on the pitch of the roof. |
| Park Builders Inc. |
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| ProMatcher |
Answer: Never
Explanation: Can you? Sure, if you or your roofer does not follow GA state building code. If your community requires an inspection on a roof replacement, a third layer or more will not pass inspection.
Allegiant Roofing does not do multiple layers on a roof. |
| Allegiant Roofing, LLC |
Answer: Never
Explanation: fire code. To much weight on the roof for the fire fighters to go on and put the fire out. It changed in 1988 by the fire marshall |
| Todd's Roofing & Siding |