[RE-wrenches] Tile Roof mount compliance

[Nick Vida]

Hi William,
We deal with this all day in California. You should go in the attic, figure out the truss type (howe, scissor...), get the spans and sizes of the wood, and pictures of the grade stamps. You can then send this off to a structural engineer to get a letter and a digitally stamped set of your plan set. The Engineer may request structural additions, or different spacing for the penetrations, but most truss is pretty sturdy and capable of supporting the solar panels. 
If you throw a rock on linkedin, you will hit a Structural Engineer. If you need some help, send me a note off list.
Nick Vida
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