Save time, hassle, and callbacks by using EZ Roof Mount™ for any composite shingle roof. Specially designed with sealing point protected from elements, the kit (both lag bolt and decking screw version) is IAMPO certified for waterproofing and structural integrity. The kit includes one flashing, one versatile aluminum base designed for multiple configurations, one EZ L-Foot and all hardware. Drill 9/64" pilot hole and use #3 Phillips to install screws into decking. Or use 13/64" drill bit to drill into your rafter and use 1/2" or 13mm wrench to tighten bolt into rafter. Use 9/16" or 14m wrench to tighten rail to L Foot.