[RE-wrenches] Steel Trusses

[Peter Giroux]

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 
  To: RE-wrenches 
  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] 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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