I like the idea of tile hooks, if flashed properly, but they are not suitable for high design wind speed environments in my experience. Unirac's tile hook tables require anything over 140mph to have effective spans of 24 inches when trusses are 24 inch on center (32 inch for 16 inch OC). That's way too many attachment points to make economic sense for us here. I haven't seen any other hooks with longer spans. Since most of our work is 160mph+, it's not an option. And Unirac's span tables only go to 170mph, which eliminates much of SW Florida and pretty much all of Florida's southeast coast. I'm not sure about snow and seismic, but I imagine there are similar issues.
Jason Szumlanski Florida Solar Design Group https://floridasolardesigngroup.com <https://mailtrack.io/trace/link/3107774613490049e8830d9eb917d192cfab86ed?url=https%3A%2F%2Ffloridasolardesigngroup.com&userId=1613865&signature=9283aa9654e3a71e> On Thu, Jun 22, 2017 at 4:57 PM, Lorenzo Ortiz <lore...@cal-solar.com> wrote: > We do flat tile roofs all day out here in CA. We've used these flat tile > roof hooks by Solar Roof Hooks > <https://mailtrack.io/trace/link/31303e3cf702e0576ad98711f02d9c4a97849170?url=https%3A%2F%2Fwww.solarroofhook.com%2Fproduct%2F17540%3Fparent%3D17540%26id%3D475&userId=1613865&signature=511c338bdd98264f> > to great success. > Pull up a tile, find a rafter, pilot holes, goop, put in a hook with lags, > more goop, and then a piece of roof-flashing tape for good measure, put the > tile back and move on to the next one. > No issues with leaks so far. > > > On Thu, Jun 22, 2017 at 7:36 AM, jay <jay.pe...@gmail.com> wrote: > >> HI All, >> >> I’ve never worked with flat concrete roof tiles before. And have an >> install that does have them. >> Something like a Striata type. >> >> Wondering what recommendations folks have for how to mount with them. >> Its not a large system currently only 6-9 x 280 60 cell modules. >> Probably doesn’t make sense to remove/reroof in that area. And the roof >> can handle the weight without removing the tiles. >> >> thanks in advance, >> >> Jay >> Peltz Power. >> >> > >
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