Hi Luke Christy,
I am wiring a SIP house, and the plans called for hanging a fan on the ceiling.
I contacted the manufacturer and they suggested cutting out a rectangular
section of the OSB board that extends well beyond the dimension of my ceiling
mounted round metal box. Then with a tool called a hot knife, the Styrofoam
was melted away. Next we gouged out more Styrofoam, several inches beyond the
cut out and slipped some 2x wood blocks into the hole and screwed along the
perimeter. Next screw the OSB cutout back in place, and now there is a large
area to screw into for your mounting foot. I hope this makes sense.
Ralph Pisciotta
Willits Electric
________________________________
From: Luke Christy <sgsrenewab...@gmail.com>
To: re-wrenches@lists.re-wrenches.org
Sent: Sun, January 17, 2010 8:24:49 PM
Subject: [RE-wrenches] Mounting to SIPs, revisited
Esteemed Wrenches,
We have a PV job in the works that will require mounting racking to several
roofs that consist of asphalt shingles laid over SIP panels. The panels are
standard 10" nominal thickness, with 9-1/4" of foam sandwiched by 1/2 OSB on
each side. The rub is that the underside of the panels will be the finished
ceiling (with 5/8" of wood over the OSB).
I found a couple of threads in the archives discussing mounting to SIPs, but
most comments suggest through-bolting, and that is not an attractive option in
this case due to the finished ceiling directly beneath.
The roofs in question are triangular in plan, and are fairly small (~ 15' x 15'
x 21')
Does anyone have experience with mounting directly to the outer skin of a SIP
panel?
Suggestions on the best way to approach this problem would be appreciated.
Thanks in advance.
Luke Christy
>>
>> NABCEP Certified PV Installer™: Certification #031409-25 (Luke Christy)
>> CoSEIA Certified PV Installer (Luke Christy)
>>
>>Solar Gain Services, LLC
>Monte Vista, CO
>> sgsrenewab...@gmail.com
>> 719.588.3044
>>
>
>
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