[RE-wrenches] TJI rafters

[Mark Frye]

If you can take multiple 1/4" lags, you can consider the Hollaender 
Speed Rail square flange. I have used this to built steel pipe rack, 
then attaching solar rail to the pipe with u-bolts.


On 3/3/2018 12:45 PM, Ray wrote:
>
> I can see that the TJI manu doesn't want us blowing 3/8" lags through 
> the top chord of their engineered system.  On the other hand, it IS 
> designed to have nails and at least deck screws put into it, as that's 
> how the builder attaches the roof decking. It seems that William's 
> measured approach is (as usual) good advice.  I think that multiple 
> 1/4" lags with predilled holes might be acceptable, but that would be 
> up to the engineers and AHJ.  My issue with the EZ feet is that you 
> are entirely dependent on how well the roof decking was installed.  
> Nails and construction staples don't have great pull out resistance, 
> so I would hope that the builder uses some type of rated screws to 
> attach the decking.
>
> Ray Walters
>
> Remote Solar
>