We've done roof mount pv on tji's. Our engineer required 4x blocking installed
between the tji rafters that we lag bolted into. You're not allowed to cut or
drill/bolt into the top and bottom cords of the tji's. We also packed out both
sides of the tji plywood webbing prior to installing the blocking. Our snow
loads oftentimes are too high and won't allow me to screw into the plywood roof
deck only.
Chris Worcester ch...@solarwindworks.com 530-448-9692on my Samsung Galaxy S7.
Original message From: Aaron Mandelkorn
Date: 3/4/18 6:44 AM (GMT-08:00) To: RE-wrenches
Subject: Re: [RE-wrenches] TJI rafters
I have also used the sunmoto mounts with the multiple holes. They are called
the AL shoe I believe. It makes a great alternative to the DPW ez foot which
are very expensive and take forever to receive. We but butal mastic tape on
the back. Just like the ez foot.
Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com
Off Grid Depot
www.offgridnow.com
970-596-3744
On Mar 3, 2018 5:54 PM, "August Goers" wrote:
Hi All - We tie into TJIs commonly, if you Google "TJI solar" you'll find
manufacturer docs on how to properly lag in.
August
On Mar 2, 2018 1:24 PM, "Jerry Caldwell" wrote:
Dear Wrenches,
I have a customer with a low slope roof supported by TJI beams. Does anyone
have experience permitting and installing on TJIs? I'm curious if jurisdictions
are requiring Structural Engineer stamps.
Since the top chord of the beams is only 1 3/8" thick should we be using
shorter lag bolts for these installations? It also seems that it would be
undesirable to penetrate into the web of the beam.
Any advice would be appreciated here.
Thank you,
Jerry Caldwell
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