Solar in Texas starts on the roof you already have, under a sun that stays high for a long season. Production is a site question: direction, shade, and how many clear hours that slope actually sees. It is also a construction question. An array on a tired deck, a bruised hail roof, or a slope with soft underlayment just pins new holes to an old problem. The visit has to look at wood, flashing, and the electrical service before anyone sketches a layout.
Weather decides the attachment, not a brochure. Hail in the north and across parts of the south means you should ask what the modules and the roof under them must endure, and how a later roof repair gets under the array. Hurricane wind on the coast makes attachment and flashing a wind problem if the connection to the deck is casual. Heavy tree cover changes the shade more than a street photo shows.
Heat is the other design fact. Attics and roof decks run extremely hot, and equipment mounted in that heat has to be reachable and able to shed it. Ask where the inverter will sit, how monitoring shows a string that goes quiet, and whether the electrical service can take the connection. Tile roofs need mounts and flashing made for tile so rain does not follow the bracket. Asphalt and metal ask for their own details.
Permits and utility interconnection are part of the job, not a favor at the end. Ask who files the building permit and who files to interconnect, and whether the system stays off until the utility allows it to operate. Ask who lifts the array later when the shingles or the tile are due. Get the module and inverter models named. An aerial photo has not seen the deck or the afternoon shade.
Have the address, the rough age and type of the roof, and which slopes are shaded by oaks or by the neighbor's house. Say if hail, wind, or a soft deck is already a worry. Ask for a site visit that covers structure, shade, equipment location, and the path to permission to operate. Keep the talk on the roof and the gear. Call the number on this page.