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Old 07-29-2017, 08:40 PM
artguymark60 artguymark60 is offline
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Originally Posted by tinnerjohn View Post
I have a dormer on my house with about a 1 - 12 pitch that I need to re-roof. I've used roll roofing on it in the past, but the quality seems to have gone downhill since the first time 20 years ago. I'm thinking of using 28ga. galvanized 14 X 20 with 3/8 soldered seams, let it weather over the winter and paint it in the future. Now for my question: should I use felt or rosin paper over the plywood sheeting? Any comments, suggestions? I know rubber is probably what I should use, but I'm a tinner at heart! John
Use both felt and rosin paper.
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Old 07-30-2017, 02:46 PM
tinnerjohn tinnerjohn is offline
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This project is still on the backburner, I have the metal cut, just need to seam, paint the bottom side and install. I appreciate your suggestion, I'm guessing the 30 lb. felt, then the rosin paper? John
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Old 08-04-2017, 05:31 AM
MattM MattM is offline
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I'm just curious, with 26 gauge so inexpensive, hardly different than 28, why go so thin? You can go aluminum if you're worried about weight. I would want 24 gauge minimum myself.

And letting it 'cure' in the weather will advance its failure considerably. May as well use primer or some other protectant ASAP the project is finished. Any non-protected exposure of galvanized drastically shortens its life. And it's even worse as air quality falls. Make your baby outlast you.
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