Roofing Felt

 
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Old 06-08-2010, 07:39 PM   #1
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Roofing Felt


I am wondering how many put felt on entire roof (or at least side you are working on) before you start shingling?

I find wind and walking on it will rip it off, especially on anything over a 4/12 pitch.

I do mainly renovations and shingle my own roofs and am wondering is there a trick I am missing?
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Old 06-08-2010, 07:51 PM   #2
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Re: Roofing Felt


Top priority is usually getting the thing dried in, and felting's the fastest way to do that unless you're using zip panels.

Maybe you're not using enough fasteners?

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Old 06-08-2010, 07:53 PM   #3
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Re: Roofing Felt


lay some scraps of ply on top of it if you need to walk up and down it. Sometimes when we are sheathing we have to do this too. Felt tends to breakdown quickly if you walk on it a lot when its hot.
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Old 06-08-2010, 07:58 PM   #4
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Re: Roofing Felt


Try Deck Armor or another synthetic underlayment that is nailed (supposed to be cap nailed) on. It won't budge.
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Old 06-08-2010, 08:01 PM   #5
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Re: Roofing Felt


Normally around here we use plain old standard roofing felt.
Usually use shingle nails as I was taught. Maybe cap nails would be better?
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Old 06-08-2010, 08:05 PM   #6
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Re: Roofing Felt


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Originally Posted by Cjeff View Post
Normally around here we use plain old standard roofing felt.
Usually use shingle nails as I was taught. Maybe cap nails would be better?
Cap nails hold better (thats what we use) but you can still have it tear on you.
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Old 06-08-2010, 08:08 PM   #7
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Re: Roofing Felt


I do a section at a time and felt as I go. Not the way everyone does it but, it works for me.
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Old 06-08-2010, 08:14 PM   #8
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Re: Roofing Felt


I shingle nail every 4 feet top and bottom.

I usually end up rolling the roll in front of me. And have 4 rolls going up in a staggered pattern.

I shingle going up on the angle from bottom to top.
So this works but I think rolling out entire rolls and felting all before shingling would be faster.

Do one job (felting) then shingle.
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Old 06-08-2010, 08:16 PM   #9
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Re: Roofing Felt


those synthetics are pretty nice,i know some don't like them but for quick drying in and walkability its a pretty nice product
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Old 06-08-2010, 08:18 PM   #10
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Re: Roofing Felt


what's this "felt" you speak of? LOL , I have switched over to Berger roof underlayment, LOVE the stuff!
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Old 06-08-2010, 08:22 PM   #11
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Re: Roofing Felt


For me anything but felt would be a special order, Felt is all my yards carry.
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Old 06-08-2010, 08:35 PM   #12
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Re: Roofing Felt


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Originally Posted by Cjeff View Post
I shingle nail every 4 feet top and bottom.
No wonder it tears loose on you!

I'd call that marginal fastening even if I knew I was going to have it shingled over within the next hour.
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Old 06-08-2010, 08:45 PM   #13
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Re: Roofing Felt


Jeff, sound like you doing it right, (as long as you keep your lines strait I doubt if doing the whole roof will save you time. I also put about one or two rows of felt at the most. Getting it ripped is one thing, but more important is not falling off the roof caring the bundles from the ridge down.
(My supplier delivers them right to the ridge)
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Old 06-08-2010, 09:20 PM   #14
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Re: Roofing Felt


Felt it as you go if drying in isnt an issue.

Rollout some of the first roll, then start the second roll and third and so on, putting shingles down on the partial rolled out rolls. minimal fasteners would be needed if you stayed on the shingles. Only works with stair stepping.
When I did new work and was paid by the piece thats how i did it. Minimal time rolling out paper.

What I mentioned sounds like what you do. anyway.
Its almost like cleaning up scraps on the ground, if you do it as you go the time per task is blended in so it takes less time.

Last edited by red_cedar; 06-08-2010 at 09:26 PM.
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Old 06-08-2010, 11:18 PM   #15
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Re: Roofing Felt


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Originally Posted by Tinstaafl View Post
No wonder it tears loose on you!

I'd call that marginal fastening even if I knew I was going to have it shingled over within the next hour.

How often would you fasten it? With roofing nails or???

I like the idea of shingling 1 strip wide up the entire roof, then moving over and going up another strip (or two). I thought I may give that procedure a try. For that all the felt needs to be down first.
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Old 06-09-2010, 03:52 AM   #16
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Re: Roofing Felt


Button cap staples every 16". Felt roof all at once. If it is in the desert different story-felt as you shingle as heat will burn you. Bostich button cap stapler ( look into it rookies). Here in So-Cal hot is 90 nothing compared to what you guy's see.
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Old 06-09-2010, 05:27 AM   #17
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Re: Roofing Felt


like others have said, switch to a synthetic roof underlayment and you'll be safer. I think felt paper rips, scary how many guys use 15 lb felt. that's cheese.
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Old 06-09-2010, 07:23 AM   #18
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Re: Roofing Felt


Felt is fine! I always paper out the whole side and strike lines prior to running shingles its faster than starting and stopping.

Heres a tip for you. Overlap the paper half sheet if your going over ice shield, overlap four inches instead of the two inch line on the top of in the paper and you will lock these sheets together without tear out. No cap nails either, Im sure they're nice insurance but staples have been used for years...........

Last edited by Tom M; 06-09-2010 at 09:10 AM.
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Old 06-09-2010, 08:01 AM   #19
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Re: Roofing Felt


no one mentioned using a 30lb vs a 15lb? the last roll of 15lb at the supply house was like paper-they're getting cheaper and cheaper.

I haven't used the bostich hammer stapler in years-got tired of it getting jammed up and slowing progress, but it was a nice tool to have.
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Old 06-09-2010, 09:30 AM   #20
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Re: Roofing Felt


Quote:
Originally Posted by Cjeff View Post
How often would you fasten it? With roofing nails or???
I'll use roofers on something like a little shed roof. For bigger/higher, I like cap nails, every 16-24" depending on pitch, weather conditions and whether it might have to sit without shingles for a while.

Quote:
I like the idea of shingling 1 strip wide up the entire roof, then moving over and going up another strip (or two). I thought I may give that procedure a try. For that all the felt needs to be down first.
That does work well. You're doing much less non-productive walking, and especially if you have a grunt to feed you, you can roll!

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