Wrong nails used for OSB siding


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Old 04-19-24, 06:58 AM
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Wrong nails used for OSB siding

Hi all, thanks for adding me to this group. I recently had issues with the brick siding over my front porch. It's a long painful story, but basically all the brick fell off due to the porch design. I made the decision to go back with natural stone veneer and take the load of the brick off the porch. Since the stone is attached to the wall, this now puts the load on the wall. And since there was no sheathing under the brick, it required the addition of OSB for the stone to attach.
After the project was complete, I find that I selected the wrong nails for the OSB. I used 7d when 8d is supposed to be used. I'm looking for possible solutions to avoid possible failure in the future. If anyone has ideas, I would greatly appreciate it. Thanks

 
  #2  
Old 04-19-24, 07:05 AM
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Welcome to the forums!
how thick is the OSB?
 
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Old 04-19-24, 08:20 AM
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I would not worry too much about being one size under for the nails. A lot will also depend on how many nails were used.

I'm curious how the stone was attached to the OSB? Masonry doesn't stick to wood very well.

Is it real stone or a lightweight synthetic/composite stone?
 
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Old 04-19-24, 09:38 AM
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Thanks for your replies. The OSB is 1/2", and there is a tilathe screen material with vapor barrier is attached to the OSB with 1-1/2" roofing nails. A layer of mortar is placed over the screen to create what appears to be like a cement backer board. Once that all dried, the stone was attached with mortar.
The overall square footage calculated to about 173 sq ft. I purchased 3 lbs of the 7d nails (approximately 675 nails) but the installers only used about 450.
I was first concerned about how many nails were used and that's when I found my mistake with the nail size.
 
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Old 04-19-24, 09:56 AM
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The stone used is from L. Thorn and is advertised as natural stone.
 
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Old 04-19-24, 09:58 AM
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Are you saying it's only fastened to the sheathing, not to the studs?
 
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Old 04-19-24, 10:20 AM
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XSleeper, you bring up a very good point. If the nails used were 1-1/2", they couldn't penetrate the studs but about a 1/2". This is considering 1/2" OSB and 1/2" foam insulation.
 
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Old 04-19-24, 10:42 AM
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Typically all mfg's require siding nails to penetrate into studs a minimum of 1". Always read and follow your mfg's installation instructions.
 
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Old 04-19-24, 11:18 AM
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XSleeper, you are correct, unfortunately I had pros do the installation, and I supplied the material. Now that being said, do you have any thoughts on fixing it?
 
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Old 04-19-24, 11:22 AM
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I don't see anything you can do at this point short of tearing it down and starting over. So, you might as well go on with life and not worry about it until if or when a problem develops.
 
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Old 04-19-24, 11:29 AM
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I was wondering about location the studs from inside the house. Drilling into the mortar to the wall from outside and installing screws.
Then patching the mortar afterwards. Any thoughts on that?
Would vibration from the drilling cause other issues?
 
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Old 04-19-24, 05:22 PM
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IMO, not a good idea. I'd leave well enough alone.
 
 

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