Hi Jason

www.apoc.com<http://www.apoc.com>

Kind regards

Tom Duffy
Senior Solar Design Engineer
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From: RE-wrenches [mailto:[email protected]] On Behalf 
Of Jason Szumlanski
Sent: Tuesday, June 07, 2016 7:18 AM
To: RE-wrenches <[email protected]>
Subject: Re: [RE-wrenches] Steel Trusses

While on the subject, anyone have a good source of 2" wide Butyl double sided 
tape? Our local roofing suppliers only have 1".



On Mon, Jun 6, 2016 at 7:36 PM, Peter Giroux 
<[email protected]<mailto:[email protected]>> wrote:
Chad

  I second August. We have had great success with self tapping screws. Put some 
butyl on the L-foot and set it in.

thx
peter
----- Original Message -----
From: August Goers<mailto:[email protected]>
To: RE-wrenches<mailto:[email protected]>
Sent: Monday, June 06, 2016 6:44 PM
Subject: Re: [RE-wrenches] Steel Trusses

Hi Chad,

We’ve occasionally installed onto steel trusses with either self drilling 
screws (no pilot required) or thread forming screws (pilot hole required). See 
attached sample spec sheets.

I suppose you could install a standard tile hook type product with the types of 
fasters I listed above. Or, hire a roofer to waterproof your stanchions and 
reinstall the removed tiles. More and more, we are moving towards the latter 
because we’ve bumped into issues with degrading underlayment (felt paper) under 
tile roofs.

Best,

August
Luminalt

From: RE-wrenches 
[mailto:[email protected]<mailto:[email protected]>]
 On Behalf Of Chad Waits
Sent: Monday, June 06, 2016 3:15 PM
To: RE-wrenches
Subject: [RE-wrenches] Steel Trusses

Wrenches,

Anyone out there have any experience attaching arrays (from the topside) to 
roofs with steel trusses under plywood decking? We’ve got a new project that 
has steel trusses and we would prefer to not have to spend time in the attic 
bolting through  (it was 113 degrees here today)… Is there a fastening system 
out there that anyone has experience with?

Oh, the roof is composite/strengthened clay tile as well.

Thanks!

Chad Waits
President/Owner – Net Zero Solar
101 W. 5th St., Tucson, AZ  85705
Office: 520-207-4053<tel:520-207-4053>
Cell: 520-270-4873<tel:520-270-4873>
NABCEP Certified PV Installation Professional
NABCEP Certified Solar Heating Installer


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