Solar installation is as much a roofing job as it is an electrical one, and most solar failures trace back to the roof, not the panels. We assess whether your roof is ready to carry an array, get the mounting and flashing done so the penetrations are properly flashed rather than just sealed, and keep the roof plan and the array layout aligned before any crew starts. The roofing side is done by the same in-house Red Seal crews that work the rest of your building envelope.
Both, and the roofing half is the one that gets skipped. Solar panels are wired by a licensed electrical trade, and that side of the project gets the attention it is legally required to have. The roof underneath rarely gets the same scrutiny, and that is exactly where most solar problems actually start. A mounting foot flashed poorly leaks at the first heavy rain. A roof with five years of life left gets an array bolted to it, and the panels have to come off again before the roof does. A racking layout ignores which plane actually gets useful sun. None of that is an electrical failure. It is a roofing decision made without a roofer in the room, and it is the exact gap this page exists to close.
Leaks at mounting penetrations, water working under improperly flashed racking feet, and warranty disputes over how the hardware was installed account for the majority of solar complaints that trace back to the roof rather than the electronics.
Panels are commonly rated for a working life measured in decades. Very few Calgary roofs last that long without a repair or a replacement in between, which means the roof underneath needs to outlast, or at least out-plan, whatever goes on top of it.
We handle the roof: readiness, mounting, flashing and warranty coordination. The solar installation and its electrical connection are carried out with our solar partner, as licensed electrical trade work that is permitted and inspected the way the code requires. Both sides agree the plan before either one starts, so you are not left refereeing between two trades.
A roof does not need to be brand new to carry solar, but it does need enough life left to outlast the install without a re-roof interrupting it. Readiness comes down to age, material, structural condition, and how much usable sun each roof plane actually receives once trees, dormers and neighbouring rooflines are accounted for. If any of the following apply to your roof, it needs assessing before the array is specified, not after.
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Plenty of solar quotes cover the array and the wiring without ever asking whether your roof deck can take the mounting layout, whether your shingle warranty survives the hardware, or whether the plane being used is even the one with the best sun. That is roofing knowledge, and our in-house Red Seal crews work the rest of your building envelope, so it comes to the table before the racking goes up rather than after a leak shows up. Backed by COR safety certification and $10M liability coverage.
The roof under an array is the part nobody thinks about until it leaks. We make sure it is ready before the hardware goes on, sealed properly once it is up, and that its warranty position has been considered rather than ignored.
Before any solar conversation goes further, we get on the roof and assess what is actually there: material, age, remaining life, structural condition, slope and how much usable sun exposure the roof plane gets through the day. You get a written verdict on whether the roof is ready to carry an array now, or what needs to happen first.
Every mounting point is a hole in your roof until it is flashed properly. We handle the roofing side of the install, matching the flashing detail to your specific roof system so each penetration is sealed the way the rest of your roof is built, not caulked over and hoped for.
Mounting hardware installed the wrong way can void a shingle or membrane warranty you already have. We check how the proposed mounting method interacts with your roofing manufacturer’s requirements before installation, so a solar decision does not quietly cost you your roof coverage.
Solar projects go wrong in the gap between trades. We keep the roof plan and the array layout on the same page from the start, so mounting positions, flashing details and electrical routing are settled before anyone climbs a ladder. The electrical connection is licensed electrical trade work, permitted and inspected as the code requires.
Enough that you are not paying to remove and reinstall a working array a few years after it goes up. Solar panels are commonly rated for a working life stretching decades. Very few roofing materials, particularly asphalt shingles in a hail city like Calgary, are rated to match that. Put panels on a roof that is close to the end of its life, and you inherit an expensive sequence: the roof fails or needs replacing, the array has to be unbolted and stored, the new roof goes on, and the array goes back up, assuming nothing was damaged in between. None of that is a reason to avoid solar. It is a reason to check remaining roof life against panel life before committing to either.
A panel warranty measured in decades is common. A Calgary asphalt roof rarely gets there without a repair or a replacement first, especially once hail is factored in. That mismatch is the single biggest planning error we see.
If a roof assessment shows a replacement inside the next few years, we say so before any mounting layout is discussed. Re-roofing under an existing array costs more in labour than sequencing the roof first would have.
A roof with real life left is a good foundation for solar. A roof that is close to the end of it is a better candidate for replacement first. We give you that verdict in writing so the sequencing decision is yours, made with the facts in front of you.
Solar can go on almost any sound roof, but the mounting method, and how much it disturbs the roof itself, changes with the material. Here is how the roof types we work on most in Calgary compare.
Most common in Calgary
The roof type behind most solar quotes in this city, and also the one most sensitive to timing. Each mounting foot penetrates the shingle and deck and has to be flashed individually, which is straightforward on a roof with real life left in it and a poor use of labour on a roof that is due for replacement in a few years. We check remaining shingle life before anyone talks mounting layout.
Clamp-friendly
Standing-seam metal is often the cleanest roof to add solar to, because the racking can clamp directly onto the seams without putting a single new hole in the roof deck. The trade-off is that clamp spacing and panel profile have to match the specific seam system, so it is not a generic fit across every metal roof.
Ballast or mechanical
Flat and low-slope commercial roofs can usually carry solar on ballasted racking that adds weight instead of penetrations, or on mechanically-attached mounts sealed to the membrane itself. Either way, structural load and drainage need checking first, because a membrane roof that already ponds water does not need more weight sitting on top of it.
Roof load capacity and local snow load both factor into any mounting plan regardless of material, which is why the racking layout gets checked against your specific roof, not against a generic spec sheet. If your roof turns out to need work before it can carry an array, our roof repair and roof replacement pages cover what that looks like.
Every mounting foot is a deliberate hole in your roof, and a hole is only as good as what seals it back up. A properly flashed penetration ties into your roof system the same way a vent pipe or a chimney does, shedding water around the hardware instead of relying on a bead of sealant to hold indefinitely. A poorly done one looks fine for a season or two, then finds the first real Calgary freeze-thaw cycle. Warranty coverage is the other half of the same question. Most roofing manufacturers specify how their product can be penetrated and still stay covered, and mounting hardware installed outside that spec can void the warranty on a roof that had nothing wrong with it before the panels went up.
Flashing at each mounting point is matched to your specific roof system, whether that is asphalt, metal or membrane, instead of a one-size caulk-and-hope approach.
We confirm the mounting method against your roofing manufacturer’s installation requirements before hardware goes on, so a solar decision does not quietly cost you your existing roof warranty.
You get a record of what was installed, how it was flashed, and how it aligns with your roofing warranty, so the information does not live only in someone’s memory of the job.
A good solar quote covers panels, inverters and expected output. It should also answer these questions about the roof underneath, because the roof is the part still on your house long after the solar conversation is over.
Start With A Roof AssessmentSolar goes well when the roof side gets the same planning as the electrical side. Here is exactly what to expect from us.
We inspect the roof planes involved, note material, age, remaining life, structural condition and sun exposure, and put the findings in writing before any mounting layout is discussed.
A straight answer on whether the roof is ready to carry an array now, needs repair first, or is close enough to replacement that solar should wait until after the new roof goes on.
The roof plan and the array layout are set together, so mounting positions, flashing details and electrical routing all agree before anyone climbs a ladder.
Racking feet are set to respect the deck framing, and every penetration is flashed to match your specific roof system rather than sealed with a bead of caulk.
We walk you through what the mounting means for your existing roofing warranty and hand over documentation for your records.
Often, and this is the single most expensive mistake we see people make. Panels are designed to sit there for decades, so putting them on a roof with only a few years left means paying to remove and refit the entire array when the roof gets replaced. That removal and reinstall is not a small cost, and it is completely avoidable. The honest sequence is to establish how much life the roof genuinely has left first, and if it is short, replace it and then mount the panels onto a new surface.
They will if the penetrations are not flashed properly, and that is the most common source of solar-related roof damage. Every mounting bracket is a hole through your roofing system. Done correctly, each one is integrated into the roof with proper flashing so water sheds over it the same way it sheds over a vent or a chimney. Done poorly, it is sealed with caulk that fails in a few Calgary freeze-thaw cycles and starts letting water into the deck, where you will not see it until there is real damage.
It can, and it is worth checking before anyone drills. Many roofing system warranties have conditions about penetrations and who is permitted to make them, and an array installed without regard to those conditions can compromise the coverage you already paid for. This is one of the main reasons the roofing side should be handled by people who understand the system, rather than treated as an afterthought to the electrical work.
They have to come off and go back on, which is why timing matters so much. A full array removal, roof replacement and reinstall costs considerably more than simply doing the roof first. If your roof is mid-life the maths is worth working through carefully before committing. We would rather tell you to wait and do the roof first than sell you something that creates a bigger bill later.
Asphalt shingle is the most common here and takes standard mounting easily. Standing-seam metal is arguably the best case, because clamp-based systems can attach to the seam without penetrating the roof at all. Flat and low-slope commercial roofs work with ballasted or rack-mounted systems that set the angle deliberately. Older, brittle or already-failing roofing of any type is the poor case, not because of the material but because of its condition.
Most residential roofs can, but it should be confirmed rather than assumed, especially on an older home or where there is already snow load to consider. Panels and their mounting add meaningful weight spread across the structure. It is a straightforward thing to assess and a serious thing to get wrong, so it belongs in the assessment rather than in the hopeful category.
South-facing gets the most production, but it is not the only workable orientation. East and west-facing surfaces still generate usefully, just less. What matters as much as direction is shading: a chimney, a large tree or a neighbouring building can cost you more output than a less-than-ideal orientation does. Both are assessable before anyone commits to anything.
Four questions worth asking. How many years does my roof actually have left. How will each mounting point be flashed, and is it sealant alone or a proper integrated flashing. Does this affect my existing roofing warranty. And what happens, and what does it cost, when the roof needs replacing while the panels are up. If those answers are vague, that is useful information about how the roofing side of your project will be treated.
Considering solar? Start with the roof. You’ll get a clear written assessment.
Serving: Calgary, Airdrie, Cochrane, Okotoks, Chestermere. Flexible financing available.