[RE-wrenches] Steel Trusses

Tue Jun 7 13:41:25 PDT 2016

Hi Jason

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Kind regards

Tom Duffy
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From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jason Szumlanski
Sent: Tuesday, June 07, 2016 7:18 AM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
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 <pgiroux at mindspring.com<mailto:pgiroux at mindspring.com>> 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:august at luminalt.com>
To: RE-wrenches<mailto:re-wrenches at lists.re-wrenches.org>
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:re-wrenches-bounces at lists.re-wrenches.org<mailto:re-wrenches-bounces at lists.re-wrenches.org>] 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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