New Construction/Standoff/LowProfile Flashing [RE-wrenches]

[William Miller]

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RE-roofing!  The million dollar question.  We are dedicated to "top-down" 
installations.  All (or darn near all) of our racks tilt up for back wiring 
in conduit.  Therefore, any rack can be lifted up for re-roofing.  We 
haven't done it yet, but we figure a comp roof can be re-roofed around our 
racks.  Lift the racks up and then the customer pays one of us to hang out 
and lift one foot at a time for new shingles to be slid underneath.  Like I 
said, we haven't actually tried it yet, but it would be many times cheaper 
than removing the whole shootin' match.

Also, our "Cadillac" comp installs get DPW power posts with flashing.  I've 
tried the solar jacks, or whatever they are called, and I can't sanction a 
stand-off with only one lag.  I'd like to see the DPW power posts with a 
square flange, rather than rectangle, for more stability.  The only 
flashing that will clear the flange is the Oatey solar.

Continuing with the creative process:  Just today we started an 
installation on a comp roof with cathedral ceiling.  Since we can't block, 
and we can't hit rafters (multiple 10 module racks, no consistent 48" foot 
spacing, variable roof framing, etc.), we are placing 20" to 28" sections 
of aluminum "Uni-strut" at each rack foot location.  Lots of caulk area 
under each strut and the feet placement is flexible.  Water can run off 
between sections of strut. So far, it looks like this may be a new SOP for 
us.  I'll keep you all posted.

William Miller

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