Quote:
Originally Posted by buffalobillpatrick
...Roofing is already bought Decra steel shake dark green. 1/2 will face South, but I am reluctant to put holes in it to mount PV panels.
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I share your concern with drilling holes in a Decra roof. When I installed my 4400W PV system on my Decra Tile roof, I drilled only
one hole in it, at the peak, for the weatherhead. My 6 PV mounting rails and 20 PV panels are mounted on 102 Creotecc (Unirac) tile hooks.
I couldn't get enough engineering data on the Aussie Tile Hook for my structural engineer to determine if a system designed using aussie tile hooks would survive a 3-second gust of 170mph (South Florida residential design criteria). Creotecc (Unirac) tile hooks came with uplift and down force engineering load ratings my structural engineer could work with. I can offer more details if you need them.