Solar in Anchorage has to sit on a roof that already carries snow and takes wind off Cook Inlet. The long dark buries the array and the inverter goes quiet. The long summer daylight does not change the first questions. Can this roof carry the array and the snow. Who owns the panels. Who gets the call when that quiet is a failure instead of the season. Start there, not with a slogan.
Do not fasten rails through a covering that dams, leaks, or is ready to come off. Attachments at an eave that already grows ice dams will make the next winter worse. Ask how the feet are flashed and how the roof gets replaced later without destroying the work. Higher-ground snow and inlet-lot wind are different loads. Say which lot you have. An aerial picture has not walked this deck.
Ownership decides who may touch the panels and who you call when the inverter stays quiet under the snow. Get that name before the array is up, not after a dark month of silence. Put the inverter where a person can reach it in winter, not in a crawl you cannot enter once the drift sets. Shade from birch and spruce on the south still matters.
Shaking is a standing concern, and the rails have to be a structural question in Anchorage, not a trim detail. If the roof is in the middle of a repair or a claim, finish the covering first. The short season will not forgive rails first and deck second. Older electrical panels in this city are often small and already full. Say what you have. A modest service is a fact to lead with.
Say the part of Anchorage, how old the roof feels, and whether snow, wind, or shade is the limit you can see. Say who owns the panels if that is already known. If the covering is tired, that is the first call. Call the number on this page.