SHINGLE OR SLATE ROOFING  The QuikFoot system is designed to be installed on most shingle roofs for new or existing (retrofit) solar panel applications, and is accepted by most major roofing material manufacturers without voiding warranties. The QuikFoot system features a patented, watertight seal with two fastener holes provided. Both fasteners (self-drilling #15) must engage the rafter. The installer does not need to cut open the roof to properly install this bracket and can retrofit without removing shingles.