The EcoFasten GF1 flashing is easy to install on a retrofit and will not necessarily add any height to the rail. If you do need to trim the flashings installed around the skylight, then I would recommend adding sealant to these penetrations. We ditch the included lag and use a 5/16" GRK RSS (self tapping structural screw). The combination works great and does not require a pilot hole.
RSS: http://www.grkfasteners.com/en/RSS_1_2_information.htm GF1 http://ecofastensolar.com/pdf/GF1%20Cutsheets.pdf Best, Garrison Riegel Project Manager Solar Service Inc [p] 847-677-0950 [f] 847-647-9360 www.solarserviceinc.com <http://www.solarserviceinc.com/> NABCEP Certified Solar PV and Thermal InstallerT "There is no room for flashings. The L feet will go very close to the skylights and the flashing would hit the edge of them. Plus there is an existing array that was done by another installer that is done with L feet only. The new array would be higher." _____
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