[RE-wrenches] PV On Corrugated Metal Roof on Steel Building

[Jason Szumlanski]

That's a good point about the scaffolding. I was thinking about a
SnapNRack corrugated bracket bolted through the purlins. 5/16 Tek screws
to fit the bracket may be the way to go - I'll get the engineer to look
at it.

 

I'm hoping to minimize penetrations, yet meet the 130 mph wind speed.
Based on the pictures I was provided, it looks like the roof will handle
the load... we'll see.

 

Thanks for the tip.

 

Jason Szumlanski

Fafco Solar

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Allan
Sindelar
Sent: Wednesday, December 22, 2010 12:47 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] PV On Corrugated Metal Roof on Steel Building

 

Jason,
We have installed to similar buildings using #14 tek screws. If you look
into their rated pullout strength, you'll find that the large gauges
have surprising pullout resistance in purlins. And no interior
scaffolding is required.
Allan

Allan Sindelar
Allan at positiveenergysolar.com <mailto:Allan at positiveenergysolar.com> 
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com <http://www.positiveenergysolar.com/> 


On 12/22/2010 10:01 AM, Jason Szumlanski wrote: 

We are working on a contract to put PV on a steel building with a
corrugated metal roof. The corrugated metal is not a problem - we have
solutions for that. I am wondering about how to best attach to the
structural members.

 

For an idea of what we are up against, see:
http://www.fafcosolar.com/download/349/IMG_0828.JPG

 

Any suggestions for attachment methods?

 

Jason Szumlanski

Fafco Solar

 

 
 
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