Solar in Colorado has strong sun and a roof that hail, wind, or snow may already be using up. That order is the whole caution. Front Range and plains roofs take hail that can scar a covering and can strike modules the same afternoon. Mountain roofs take snow slide, pitch, and ice at the eaves. Western-slope roofs take heat and less hail. Wind uplift is a fastening question on exposed lots and foothill ridges. Shade from street trees in older cities and from canyon walls in the mountains is real. An aerial image has not seen hail bruises, a soft deck, or an ice-dam stain in the attic.
Ask for a person on the roof. Ask the age of the covering and whether roof work happens before any attachment, especially if the last hailstorm is still an open question on that covering. Ask the flashing detail and who is responsible if a penetration leaks. Ask how the array comes off for the next roof, which may arrive sooner on a hail-prone slope than the brochure assumes. Ask where snow will shed. A walk, a lower roof, and a glazed door are landing zones. Ask about wind at your actual exposure, not a sheltered side street. Hail and snow do not take turns politely. Say whether this roof is a Front Range hail slope, a mountain snow slope, or a western-slope heat slope before any attachment is discussed.
Open the panel. Older houses may be modest. Houses with electric heat or a large condenser may be full. Ask for the module and the inverter to be named. Ask who sees production and who you call when a section goes quiet under snow or after a storm. Ask who pulls the permit and who files the interconnection, and whether operation waits on permission. Ask whether you will own the equipment.
Bring the town and the last storm, not a generic sunny-day pitch. Leave the bill story out. Call the number on this page.