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Old 03-02-2009, 01:44 PM   #1
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sizing roofing nails


I' ve install 5/8 roof deck on remodel and plan to use GAF 40yr/ lifetime Arch. shingle will 1-1/4" coil nails be sufficient for nailing

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Last edited by rebel; 03-02-2009 at 01:45 PM. Reason: misspell
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Old 03-02-2009, 04:49 PM   #2
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sizing roofing nails


i belive that the nail your looking for


lets wait for a roofer tho

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Old 03-02-2009, 04:59 PM   #3
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i would go with a little longer of a nail due to the thick plywood.1 1/2" or 1 3/4".Better safe than sorry,IMO.
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Old 03-02-2009, 05:41 PM   #4
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1 1/4" are always more than sufficient for going directly to the deck. You only need longer nails if you are going over an existing layer. Most codes only require the tip of the nail pierce 1/8" thru the decking. Go ahead and use longer if you like but they are just grabbing air after the first inch.
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Old 03-02-2009, 06:35 PM   #5
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Originally Posted by OldNBroken View Post
1 1/4" are always more than sufficient for going directly to the deck. You only need longer nails if you are going over an existing layer. Most codes only require the tip of the nail pierce 1/8" thru the decking. Go ahead and use longer if you like but they are just grabbing air after the first inch.
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Old 03-02-2009, 07:04 PM   #6
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sizing roofing nails


1 - 1/4" is perfect.
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Old 03-02-2009, 08:02 PM   #7
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whats wrong with an extra 1/2"?.I'm not familiar with the gaf 40yr.I just figured they were thicker.Oh well wrong again,lol
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Old 03-02-2009, 11:39 PM   #8
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whats wrong with an extra 1/2"?.I'm not familiar with the gaf 40yr.I just figured they were thicker.Oh well wrong again,lol
We understand JohnK. You can just blame it on that damn metric conversion thing. Notice how I didn't make a single canuck comment??
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Old 03-02-2009, 11:44 PM   #9
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EH?
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Old 03-04-2009, 05:15 PM   #10
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I felt good using a long nail when I put the shingles on, but not so good when I'm up in the attic and bang my head on one.
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Old 03-04-2009, 11:46 PM   #11
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The Shingle Manufacturers Specifications and the recommendations by the APA, American Plywood Association, (aka, Engineered Wood Products Association), require the nail to penetrate a "Minimum" of 1/4" through the plywood deck sheathing.

Depending on the thickness of that particular architectural shingle, you would probably be better served using 1 1/2" coil roofing nails instead of 1 1/4" nails.

The 1 1/4" would only allow for 3/8" thickness for the shinlge materials. Remember, you are not really nailing through just one layer of shingles, but Two Layers, since they are overlapped, shingle fashion.

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Old 03-05-2009, 12:27 AM   #12
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The Shingle Manufacturers Specifications and the recommendations by the APA, American Plywood Association, (aka, Engineered Wood Products Association), require the nail to penetrate a "Minimum" of 1/4" through the plywood deck sheathing.

Depending on the thickness of that particular architectural shingle, you would probably be better served using 1 1/2" coil roofing nails instead of 1 1/4" nails.

The 1 1/4" would only allow for 3/8" thickness for the shinlge materials. Remember, you are not really nailing through just one layer of shingles, but Two Layers, since they are overlapped, shingle fashion.

Ed
Ha ha,the Canadian was right!!!
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Old 03-05-2009, 11:48 AM   #13
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YO! BC Boy, don't go celebrating too early. Ed, I must argue with your math. According to your calculations that would mean PII's nail line, combined with its salvage thickness total 5/8" thickness. According to my calipers it is roughly .290 or about 5/16".

Yes, it's not going to hurt anything using 1 1/4 or 1 1/2 but I just felt JK chose a terrible assortment of smileys there and had to do something about it. Now don't make me break out the "my hockey team beat yours....again"
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Old 03-05-2009, 12:34 PM   #14
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What hockey team is in Idaho?Oh yeah,The Russets,lol.J/k We'll just say we are both right 1 1/2 Canadian and 1 1/4 American,lol.I thought the smileys were a nice touch.take care
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Old 03-05-2009, 04:00 PM   #15
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Spokane Chiefs actually.

Like I said, ain't gonna hurt to use 1 1/2" but, in general 1 1/4" are fine for most single layer apps.

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