[RE-wrenches] Steel Trusses
August Goers
august at luminalt.com
Mon Jun 6 15:44:41 PDT 2016
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] *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
Cell: 520-270-4873
NABCEP Certified PV Installation Professional
NABCEP Certified Solar Heating Installer
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