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No Paper Under Shingles?

 
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Old 12-21-2014, 09:34 PM   #21
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Re: No Paper Under Shingles?


I also just read that is required to meet UL fire rating.
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Old 12-21-2014, 09:39 PM   #22
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Re: No Paper Under Shingles?


I've seen shingles stick to plywood and lap sheathing. Hell I've seen the shingles stick to the felt and the felt and shingles literally tear off in sheets
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Old 12-21-2014, 09:40 PM   #23
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Re: No Paper Under Shingles?


That it is,but it wasn't when the roofs i tear off were installed. Fibreglass shingles require it for a fire rating, but the old organics didn't.
I'm not arguing for the practice. The only time we don't use an underlay is the very odd new construction roof we do. Simply because its not code required and most builders wont pay for it.
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Old 12-21-2014, 09:49 PM   #24
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Re: No Paper Under Shingles?


I won't lay a roof these days wihout #30 felt.Not roofer just a remodeler who does some roofing and looking to cover my ass..The 15# is like newspaper.I&W is a must too in this area if I'm doing it.Most don't to beat my price.
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Old 12-21-2014, 09:51 PM   #25
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Re: No Paper Under Shingles?


Yes - the development is in Southern Ontario. I have never seen it and it was unusual for me. It was also weird to see them roofing on a very windy day where the temp was around 29 degrees.

I am use to seeing a job with paper and everything.
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Old 12-21-2014, 09:54 PM   #26
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Re: No Paper Under Shingles?


Quote:
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I won't lay a roof these days wihout #30 felt.Not roofer just a remodeler who does some roofing and looking to cover my ass..The 15# is like newspaper.I&W is a must too in this area if I'm doing it.Most don't to beat my price.

What are you paying for 30 pound?

If you don't mind me asking
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Old 12-21-2014, 09:55 PM   #27
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Re: No Paper Under Shingles?


I think around $18 a roll.I don't do a lot of roofs but that is close to the last I paid.
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Old 12-21-2014, 09:57 PM   #28
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Re: No Paper Under Shingles?


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I think around $18 a roll.I don't do a lot of roofs but that is close to the last I paid.

Check out titanium. It's about $100 for a 10 sq role. So slightly more. It lays flat, and you can walk a 10/12 on it perfectly fine.
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Old 12-21-2014, 11:23 PM   #29
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Re: No Paper Under Shingles?


I'll have to check that out!
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Old 12-22-2014, 01:01 AM   #30
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Re: No Paper Under Shingles?


Asphalt roofing will lose their lighter fractions i.to wood. That makes them become brittle more quickly. I've seen it both ways, and getting it dried in fast is a major benefit when I'm working alone. Big crews can knock out a good sized roof in a day, so I'm not sure there is a big benefit for them.

Sealed seam roll roofing doesn't have a good way for backside condensation to get out of the structure if you don't use u.derlay.
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Old 12-22-2014, 06:13 AM   #31
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Re: No Paper Under Shingles?


Who still uses felt?
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Old 12-22-2014, 09:17 AM   #32
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Re: No Paper Under Shingles?


I'll use it, but probably not for anything major any more.
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Old 12-22-2014, 11:40 AM   #33
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Re: No Paper Under Shingles?


u.l. listing?..who cares about that?
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Old 12-22-2014, 12:17 PM   #34
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Re: No Paper Under Shingles?


I don't in particular, just sayin it's something a read.
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Old 12-22-2014, 01:57 PM   #35
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Re: No Paper Under Shingles?


Quote:
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I won't lay a roof these days wihout #30 felt.
Most of the "30#" doesn't weigh close to 30#, Same with "15#". Depends on the ASTM specs they're made to.
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Old 12-22-2014, 01:58 PM   #36
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Re: No Paper Under Shingles?


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u.l. listing?..who cares about that?
Required egress over a roof - Lifesafety 101.
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Old 12-22-2014, 02:21 PM   #37
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Re: No Paper Under Shingles?


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Most of the "30#" doesn't weigh close to 30#, Same with "15#". Depends on the ASTM specs they're made to.

I know.Actually the main reason I use 30 is because the guys just tear right thru the 15 working on it and then have to patch it.30# is safer to work on and more efficient.
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Old 12-22-2014, 02:56 PM   #38
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Re: No Paper Under Shingles?


I haven't picked a synthetic underlay yet, but it seems the way to go to me. Better footing, doesn't tear easily, doesn't wrinkle when it gets wet.
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Old 12-22-2014, 04:35 PM   #39
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Re: No Paper Under Shingles?


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Required egress over a roof - Lifesafety 101.
well..who cares about that?

you do realize it's because it's tested as an assembly..not necessarily the paper does anything special
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Old 12-22-2014, 04:37 PM   #40
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Re: No Paper Under Shingles?


Just to chime in, I've never had a problem installing or working with 15# felt. In fact, seems like its been used for decades without issues.

Issues will occur with tear offs in the future between the massive amounts of IW people use and the synthetics, which will mark tear offs difficult.

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