[RE-wrenches] more on roof penetrations

[R. Walters]

We used a lag stud assembly from Unirac, with the dreaded L foot at  
the top of the corrugated ridge, & plenty of pooky under. The driver  
tool for the stud wasn't very useful, and because the stud was  
stainless we had a hard time driving it all the way in, without over  
torquing. I'd use a larger diameter, non stainless stud next time.
THis was on a horse shed, I wouldn't mess with the thin corrugated  
roofing at all on a residence. Its so thin it bends just walking on  
it. There is some heavier gauge corrugated roofing that is nice.
My rule, is if the roof is already  questionable, I won't touch it if  
its a residence.

Ray



On Aug 25, 2008, at 1:04 PM, Nicholas Ponzio wrote:

> Wrenches,
>
> For those of you in the opinion of using standoffs instead of L-feet,
> what do you do on corrugated metal roofs? I'm seeing a lot of these in
> both residential and commercial buildings.
>
> Thanks in advance for any suggestions.
>
> -Nik
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R. Walters
Solarray.com
NABCEP # 04170442	



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