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Old 06-09-2011, 10:07 PM   #1
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felt paper and rain


Hi - i'm getting my roof redone but we discovered the front porch was completely rotted. It took a couple of days to tear down the porch and rebuild. The roof above the porch is felted with #30 paper and now it's raining. Is that really ok to have just the felt on in the rain for the next couple of days. It kind of makes me nervous.

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Old 06-09-2011, 10:10 PM   #2
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felt paper and rain


Ideally, you should only tear off what you can cover with shingles in the same day. Felt paper is very prone to ripping and coming loosed during heavy winds. I hope you didn't use a slap stapler on it.

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Old 06-09-2011, 10:12 PM   #3
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felt paper and rain


its called a tarp
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Old 06-09-2011, 10:47 PM   #4
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felt paper and rain


Felt will only hold out water for a short period of time. As felt is wetted, it will expand and begin to wick water through.

It's actually a neat process, but not great for long term water hold out.
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Old 06-10-2011, 06:38 AM   #5
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felt paper and rain


I'm not the one puting the roof on. I hired a roofer and he insisted this is fine, but we're expecting more rain before he finishes next week. I can't go up on the roof and tarp it sothat's why i'm asking what i should do?
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Old 06-10-2011, 06:48 AM   #6
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felt paper and rain


Assuming it's installed properly, 30# felt can set exposed to the weather for a couple to a few weeks with out any problem.
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Old 06-10-2011, 06:53 AM   #7
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felt paper and rain


I just went out to look at it after last night's rain and it's kind of rippled. Will that straighten back out when it dries completely or should i make him tear it off. I'm replacing an old roof that's all rippled and i don't want another. (not the same roofer)
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Old 06-10-2011, 08:10 AM   #8
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felt paper and rain


Quote:
Originally Posted by critterlover918 View Post
I just went out to look at it after last night's rain and it's kind of rippled. Will that straighten back out when it dries completely or should i make him tear it off. I'm replacing an old roof that's all rippled and i don't want another. (not the same roofer)
Felt expand/contacts with the weather, it will straighten out if the roofer/s allow it time to do so.
(Time as in an hour or so to dry out, not days or weeks)
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Old 06-10-2011, 07:31 PM   #9
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felt paper and rain


Felt paper can wrinkle when wet. IMO you do not rip what you cannot roof. If for some reason you cant finish what you've ripped it should be tarped.

Last edited by Roofster; 06-11-2011 at 08:19 PM.
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Old 06-10-2011, 07:37 PM   #10
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felt paper and rain


Quote:
Originally Posted by critterlover918 View Post
I just went out to look at it after last night's rain and it's kind of rippled. Will that straighten back out when it dries completely or should i make him tear it off. I'm replacing an old roof that's all rippled and i don't want another. (not the same roofer)
The rippling is an effect of the felt absorbing moisture. When it dries, it will flatten back out and typically shrink just a bit from it's original size.

Contrary to popular belief, felt paper, or tar paper as most folks call it, is not waterproof.

More accurately stated, it is moisture resistant at best.

Whether or not that is a pro or con is a long argued matter.
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Old 06-10-2011, 07:44 PM   #11
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felt paper and rain


Thanks - i talked tom y roofer earlier. He does not plan to leave that paper on. He will rip off and replace with new paper when he does the roof this week.
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Old 06-11-2011, 07:12 AM   #12
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Originally Posted by critterlover918 View Post
Thanks - i talked tom y roofer earlier. He does not plan to leave that paper on. He will rip off and replace with new paper when he does the roof this week.
Kewl, I'm glad he put your worries to rest.
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Old 06-14-2013, 01:27 PM   #13
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felt paper and rain


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Felt paper can wrinkle when wet. IMO you do not rip what you cannot roof. If for some reason you cant finish what you've ripped it should be tarped.
I'm not a roofer, just a homeowner, so bear with me. When you put down shingles, you work from the bottom up, so how does this work? Or are you talking more side-to-side?
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Old 06-14-2013, 03:07 PM   #14
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felt paper and rain


Quote:
Originally Posted by Dave88LX View Post
I'm not a roofer, just a homeowner, so bear with me. When you put down shingles, you work from the bottom up, so how does this work? Or are you talking more side-to-side?
Boy, you move around a lot. You work from the eaves to the ridge usually from left to right. The directions are on every bundle of shingles you buy, and on the manufacturers web site. Pay strict attention to where you nail. Most newbies nail too high and miss the headlap, possibly resulting in tab lifting and blow off. Use six nail method per shingle with three tabs.
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Old 06-14-2013, 03:37 PM   #15
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felt paper and rain


Just passing by and read this and am curious why the guy above said not to use a slap stapler on roofing felt? How do you attach it?

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