[RE-wrenches] SIPS panel roofs

[penobscotsolar at midmaine.com]

Hi Dana,
   We have done them, but our method only works when the interior is
unfinished, for (I guess it depends on the customer) aesthetic reasons.
I had aluminum "plates", 8"x8" and 1/8" thick made up by a local
fabricator. We also fabricated flashing for the topside using 12"
aluminum. We used threaded bolts running through the SIP (9 5/8") to
another 8"x8" metal plate  on the underside. Unfortunately, this will
not be a finished look. The underside of the roof we installed on was
the underside of the SIP (sheathing). 8 years later, this roof remains
leak free and full of modules......There are obviously more details to
the install, but I don;t think this method will work for you.....

Daryl



> SIP ROOF INSTALLATION
>
>
>
> I was asked to install on a SIP panel roof today. 5/8" OSB over 6" of foam
> on a 9:12 roof pitch at 9800' elevation with a Pro panel metal roof skin.
> There is a finished ceiling underneath the lower side of the SIP roof
> panel.
>
>
> I explained that it was not ideal due to the lack of good attachment etc.
> They were not concerned and said "you'll make it work!"
>
>
>
> I have done SIP panels in new construction and we could install backing
> from
> underneath and refoam.
>
> My first thought was to do 2-2.5 times the normal L feet.
>
> One thought was to use expanding moly-bolts.
>
>
>
> Has anyone have experience attaching to SIP roof that was not prepared for
> an array?
>
>
>
> ----------------------------------------------------------------------------
>
> Dana Orzel
>
> Great Solar Works, Inc -  NABCEP # 051112-136
>
> E - dana at solarwork.com  - Web - solarwork.com
>
> O - 970.626.5253  C - 208.721.7003
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