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11-02-2011, 08:25 PM
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#1
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Newbie
Join Date: Nov 2011
Location: Silicon Valley
Posts: 3
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How To Distinguish Between Felt Weight
Hi There,
I'm in a situation where I need to figure out what weight of felt was used when the roof was installed. Any help is greatly appreciated!
Thanks in advance,
Rickey
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11-02-2011, 08:28 PM
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#2
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Framing Contractor
Join Date: Feb 2009
Location: NE Ohio
Posts: 872
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How To Distinguish Between Felt Weight
Why the issue?
Lift up an edge and check.
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11-02-2011, 08:38 PM
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#3
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Newbie
Join Date: Nov 2011
Location: Silicon Valley
Posts: 3
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How To Distinguish Between Felt Weight
Quote:
Originally Posted by sixeightten
Why the issue?
Lift up an edge and check.
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Our roof inspector noted that there is only 1 layer of felt when there should be 2 and is recommending a new roof when the current one is only 9 years old and has a life span of 25. My buyers are getting spooked, thus I need to figure out the weight and if it meets local standards.
So it's just printed on the material?
Thanks Sixeightten!
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11-02-2011, 09:10 PM
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#4
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Framing Contractor
Join Date: Feb 2009
Location: NE Ohio
Posts: 872
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How To Distinguish Between Felt Weight
It wont be printed. A roofer can tell the weight by feeling the thickness. The #30 is twice as thick as the #15.
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11-02-2011, 09:18 PM
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#5
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Member
Join Date: Sep 2011
Location: Milwaukee, WI
Posts: 188
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How To Distinguish Between Felt Weight
Makes no sense. Where does it say there should be two layers of felt? Get a real inspector!
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11-02-2011, 09:54 PM
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#6
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Moderator
Join Date: Mar 2009
Posts: 8,782
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How To Distinguish Between Felt Weight
A 2/12 up to 4/12 require two layers per IRC, though CA is usually way stricter on most everything.
Did you ask your local Building Department yet?
Gary
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Clean the dryer screen in HOT water if using fabric softener sheets.
They leave a residue that impedes air-flow, costing you money.
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11-02-2011, 09:57 PM
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#7
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Member
Join Date: Sep 2011
Location: Milwaukee, WI
Posts: 188
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How To Distinguish Between Felt Weight
Quote:
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Originally Posted by GBR in WA
A 2/12 up to 4/12 require two layers per IRC, though CA is usually way stricter on most everything.
Did you ask your local Building Department yet?
Gary
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Where was it said that it was less than a 4 pitch?
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11-02-2011, 10:30 PM
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#8
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Moderator
Join Date: Mar 2009
Posts: 8,782
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How To Distinguish Between Felt Weight
"Where does it say there should be two layers of felt?"----- it was your question.
RR- start reading about felts/papers and their weights on page #4, here: http://www.dickseibert.com/martin.pdf
Gary
__________________
Clothes taking longer to dry?
Clean the dryer screen in HOT water if using fabric softener sheets.
They leave a residue that impedes air-flow, costing you money.
Clean the ducting in the last six months? 17,000 dryer fires annually!
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11-02-2011, 10:35 PM
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#9
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Member
Join Date: Sep 2011
Location: Milwaukee, WI
Posts: 188
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How To Distinguish Between Felt Weight
Quote:
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Originally Posted by GBR in WA
"Where does it say there should be two layers of felt?"----- it was your question.
RR- start reading about felts/papers and their weights on page #4, here: http://www.dickseibert.com/martin.pdf
Gary |
I'm talking about in the original post. No where does the OP mention the pitch of their roof.
Maybe I worded my question wrong to the point it would only make sense to me.
Why does the inspector think there are two layers of felt needed? Most inspectors I've met have no knowledge of roofing.
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Last edited by ParagonEx; 11-02-2011 at 10:38 PM.
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11-03-2011, 06:21 AM
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#10
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KemoSabe
Join Date: Mar 2009
Posts: 637
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How To Distinguish Between Felt Weight
Quote:
Originally Posted by RealtorRickey
Hi There,
I'm in a situation where I need to figure out what weight of felt was used when the roof was installed. Any help is greatly appreciated!
Thanks in advance,
Rickey
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Just go to the local home center and feel for yourself. That's the best way to know what you're dealing with. 
__________________
It's not that it took him an hour to make 100 bucks, it's that it didn't take you 10 hours to save 100 bucks.
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The Following User Says Thank You to loneframer For This Useful Post:
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11-03-2011, 03:41 PM
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#11
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Shut in w/o Home
Join Date: Dec 2008
Location: Lexington, KY
Posts: 690
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How To Distinguish Between Felt Weight
Quote:
Originally Posted by loneframer
Just go to the local home center and feel for yourself. That's the best way to know what you're dealing with.
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I tried that and I'm no longer allowed in Home Depot. Wasn't sure if the clerk was a girl or a boy............ 
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11-03-2011, 03:52 PM
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#12
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Shut in w/o Home
Join Date: Dec 2008
Location: Lexington, KY
Posts: 690
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How To Distinguish Between Felt Weight
Quote:
Originally Posted by GBR in WA
A 2/12 up to 4/12 require two layers per IRC, though CA is usually way stricter on most everything.
Did you ask your local Building Department yet?
Gary
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It's not just 2 layers. They are to be half lapped. So, in this case, one layer of #30 does not equal 2 layers of #15.
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11-03-2011, 04:04 PM
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#13
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Member
Join Date: Feb 2006
Location: Minnesota
Posts: 938
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How To Distinguish Between Felt Weight
Or is he talking about the eaves? Two layers of 15# felt with roofing cement between them is acceptable instead of I&W.
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The Following User Says Thank You to MJW For This Useful Post:
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11-03-2011, 06:27 PM
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#14
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KemoSabe
Join Date: Mar 2009
Posts: 637
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How To Distinguish Between Felt Weight
Quote:
Originally Posted by seeyou
I tried that and I'm no longer allowed in Home Depot. Wasn't sure if the clerk was a girl or a boy............ |
That's a different kind of "felt" my friend. 
__________________
It's not that it took him an hour to make 100 bucks, it's that it didn't take you 10 hours to save 100 bucks.
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