Salt Lake City's older neighborhoods grew up under trees, and those trees are the first thing we look at. A maple that was trimmed back three years ago is not the same obstacle it is today, and a row of park strip trees on the south side of a lot can drag a moving shadow across a roof for part of every afternoon. Production depends on orientation, pitch, and unshaded area, so shade is not a footnote here. It changes which roof planes are worth using and which ones are better left empty. We would rather tell you a plane is compromised now than have you find out after the array is up.
Shading also moves with the calendar. The sun sits lower in winter, so a tree or a neighbor's gable that clears your roof in June can cut straight across it in December. That seasonal swing matters more on a lot with a tall canopy to the south or west. Trees also keep growing. A design that works today can look different in ten years if nothing is ever trimmed, so it is fair to ask an installer how they accounted for growth and what happens if you decide to remove a tree later. Those are questions worth asking before you sign anything, not after.
Older Salt Lake City homes rarely give you one big rectangle to work with. Bungalows, Victorians, and homes with added-on second stories tend to produce several smaller planes, dormers, chimneys, and valleys, and each break costs usable area. A steep pitch can help in winter because it sheds snow and meets the low winter sun at a better angle, but it also limits how many full rows fit between the ridge and the eave. The practical result is that two houses on the same block, both with south exposure, can support very different layouts. Measuring the actual planes is the only way to know which one yours resembles.
Complex roofs also mean more penetrations, and every penetration has to be flashed properly so the roof stays watertight for the rest of its life. On older sheathing and framing, that work deserves attention rather than speed. It is reasonable to ask how mounts will be attached, how flashing is handled where a rack crosses a valley or meets a dormer, and who is responsible if a leak shows up later. A permit and a utility interconnection application are part of every project, and a careful installer will walk you through both instead of treating them as paperwork you never see.
Roof age is the conversation we push to the front in Salt Lake City, because so much of the housing stock has shingles with limited life left. If a roof is near the end of its service life, it is normally replaced before an array goes on. Removing panels, storing them, reroofing, and reinstalling costs money and time that a homeowner rarely plans for, and it is entirely avoidable by sequencing the work correctly. That can mean solar waits a season. We would rather say that plainly than help you mount a long-lived array on a roof with only a few years left in it.
Settling roof life early also makes the rest of the estimate honest. Once you know whether you are reroofing first, you can compare proposals on the same footing instead of guessing what each one included. A real estimate comes from a site visit plus twelve months of your actual usage, not a satellite image and a phone call. Incentives and utility rules exist and they change over time, so confirm anything that affects your money with a tax professional and with your utility directly. We are a referral service and we do not give tax advice. Call 801-644-9000 and we will get you started.
Not necessarily. Some trees clip a roof plane only at certain hours or in certain months, and a design can simply use different planes. Others sit directly south and shade the best area for much of the day. A site visit tells you which situation you are in. Removing a tree is your call, and it should be a decision you make with real shade information rather than a suggestion made from the sidewalk.
Age by itself does not. What matters is the condition of the roof covering, the framing underneath, the size and shape of the available planes, and how much of that area stays unshaded. Older homes sometimes need a structural look before anything is mounted, and many need a reroof first. Those are answers a site visit provides. An installer who has never been on your roof cannot honestly tell you either way.
A proper evaluation combines measurements taken at the roof with modeling of the sun's path through the year, so you see how shade shifts between summer and winter instead of a single snapshot. Nearby trees, chimneys, taller neighboring homes, and your own dormers all get accounted for. Ask to see the shade analysis for each roof plane. If a proposal cannot show you one, treat what it claims about production carefully.
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