Patent ID: 7964786

Claim:
A method of installing a plurality of solar battery modules on a main roof structure having a ridge and eaves, the method comprising: a step of providing a plurality of solar battery modules on the main roof structure, wherein each solar battery module has an eaves-side end nearest the eaves, a ridge-side end nearest the ridge, a left side, and a right side; each solar battery module comprises a solar battery and a supporting stand provided on a back face of the solar battery along the eaves-side end of the solar battery module and whereby the solar battery is fixed to the main roof structure; and the solar battery modules of the plurality of solar battery modules are disposed in mutually adjacent fashion on the main roof structure in which: each said supporting stand includes a mounting groove that receives the ridge-side end of a solar battery module of said plurality of solar battery modules that is adjacently disposed on the eaves side, each solar battery of said plurality of solar battery modules comprises a recessed part that extends along one of the left or the right sides from the eaves-side end to the ridge-side end, each solar battery of said plurality of solar battery modules comprises a projecting part that extends along the other of the left or the right sides and has a shape that will enter a corresponding said recessed part of an adjacent solar battery, and a waterproofing means is provided such that when said projecting part is inserted into a corresponding recessed part of an adjacent solar battery, said waterproofing means prevents rainwater that has reached an upper surface of said projecting part from reaching a lower surface of said projecting part; a step of providing a water flow checking means that covers a gap between and links adjacent supporting stands of adjacent solar batteries of said plurality of solar battery modules disposed on the left side and right side of each other and prevents invasion of rainwater; a step of providing gaskets in the mounting grooves of said adjacent supporting stands such that joint portions between ends of adjacent gaskets are positioned corresponding to said upper surface of said projecting part of a solar battery that is inserted into said corresponding said recessed part; a step of inserting the ridge-side end of a solar battery of a solar battery module of said plurality of solar battery modules in said gaskets; and a step of inserting said projecting part of a solar battery module of said plurality of solar battery modules into said corresponding said recessed part of an adjacent solar battery.