[RE-wrenches] TJI rafters

[frenergy]

Jerry,

             The only thing I feel compelled to add with your decision 
would be dang sure to pre-drill AND I sure wouldn't be putting a 3/8" 
lag into a TJI flange, maybe 1/4" Simpson lags? or tech screws?

Bill

Feather River Solar Electric


On 3/6/2018 3:57 PM, Jerry Caldwell wrote:
> Bill,
>
> Mineral bitumen roll roofing. 2:12 slope.
>
> Everyone who gave input below, thanks for the suggestions.
>
> I've decided to go with the Quick Mount Q-Base product. It allows you 
> to get 2 lag bolts into the top chord on either side of the OSB web.
>
> Cheers,
> Jerry Caldwell
>
> On Sunday, March 4, 2018, 1:19:51 PM PST, Chris Worcester 
> <chris at solarwindworks.com> wrote:
>
>
> 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
>  chris at solarwindworks.com
>  530-448-9692
> on my Samsung Galaxy S7.
>
> -------- Original message --------
> From: Aaron Mandelkorn <reosolar at gmail.com>
> Date: 3/4/18 6:44 AM (GMT-08:00)
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> 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 <http://www.reosolar.com>
> Off Grid Depot
> www.offgridnow.com <http://www.offgridnow.com>
> 970-596-3744
>
>
> On Mar 3, 2018 5:54 PM, "August Goers" <august at luminalt.com 
> <mailto:august at luminalt.com>> 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" <solarcowboy at yahoo.com
>     <mailto:solarcowboy at yahoo.com>> 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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-- 
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net



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