A freshly finished suite with new ceiling tiles and a water ring appearing in the corner is a painful sequence, and it happens when interior money gets spent under a roof nobody examined first. Canyon Centre is the active Community Redevelopment Area in Cottonwood Heights, and the city's general plan asks for infill and redevelopment that make use of existing infrastructure. It names retail and commercial office as appropriate uses in strategic activity centers. Redevelopment often means putting new use and new money under an existing building, and the roof is the part of that building the money depends on. We start with the roof, before the tenant improvements, and write down what it can carry.
What failed first: the assumption that the roof was fine
The usual failure in a renovation is a missing question. The interior team assumed the roof was sound; the roof team was never called. A stain then appears over new finishes and the argument begins about whether the leak is old or new, and who owns it.
A roof survey before the interior work answers that question with dated photographs. It records the membrane condition, the seams, the drains, the curbs, the penetrations and any sign of wet insulation or a soft deck. It separates problems that predate the project from those that may arise during it, such as new penetrations for added equipment or foot traffic from other trades on the roof.
Heat is the quiet contributor. The same airport normals show warm summer months, and a dark membrane that was stable in spring can open at a curb corner by August when trades walk across it carrying equipment. A walk pad laid before construction starts costs little and keeps the survey findings from changing.
Roof-walk notes: a survey that serves the whole project
Because several parties depend on the same roof, the survey is written for readers who will not climb it: the owner, a lender, a tenant, an architect and the general contractor. It ties every finding to a photograph and a spot on the sketch.
- Roof sections, falls and the outlets each one serves
- Membrane condition, seams and prior patches
- Penetrations the project will reuse, remove or add
- Edge metal, parapets and wall bases
- Moisture readings or test openings, where taken
A due-diligence roof survey gives an acquiring owner the same record in a form that stands alone, and a moisture survey can map wet insulation before the interior team commits to a layout.
If the project will add rooftop units, the survey marks where they can sit without crowding a drain or crossing a seam, and where conduit and refrigerant lines can run without lying on the membrane.
Drainage and melt: confirming the roof sheds water
The Salt Lake City airport's record covers winter snow, snow depth, freezing nights and warm summers. Those normals describe the valley and do not stand in for conditions at Canyon Centre, so we confirm drainage on the roof, not from the record.
Existing infrastructure is the point of infill, and the roof's drainage is part of that infrastructure. We check that every outlet is open, that overflow openings exist, that the falls reach the drains and that no low area holds water after the surrounding membrane has dried. If the project adds weight or equipment, the survey notes where it would land relative to the drains, so the new load does not create a new low spot.
Parapets and roof edges need the same review where the project changes exterior finishes. Coping, flashing and edge metal are checked before new materials go on the wall, so water from the roof does not stain or swell what was just installed.
Repair boundary: before, during or after the build-out
Some roof work belongs before the interior is touched: wet insulation, open seams and failed curbs. Some belongs during, such as new penetrations flashed properly as they are cut. Some can wait until after, such as cosmetic repairs on sound surfaces. Putting each item in its place saves the owner from paying twice.
Where the survey shows a roof near the end of its service, a replacement sequenced with the project is often cheaper than a repair now and a replacement later. Where the roof is sound but marginal at a few details, a commercial roof repair scope fixes those details and leaves the rest alone. We price both so the owner can choose with the evidence in view.
A staged option often suits a redevelopment: stabilize the roof now with the repairs the survey calls urgent, finish the interior and plan the larger roof work for a window the owner picks. The proposal lays out what the first stage solves, what it leaves open and what would make the second stage necessary, so the plan can be funded in order.
Seasonal timing: roof windows inside a build schedule
Roof work has to fit a construction schedule and a winter calendar. Cold limits adhesives and welds, so major roof work is placed in warm, dry stretches, and the interior schedule is set to match it. In winter only temporary protection and small repairs are practical, and only on a surface that has been cleared and dried.
For a redevelopment, the code dates matter: Utah's 2024 International Building Code and Energy Conservation Code took effect July 1, 2026, and the older statutory edition is set for replacement on January 1, 2027. A major reroof inside a redevelopment project gets checked against whichever edition governs the permit, insulation included, before a price is set.
The roof schedule is also written into the construction sequence: when the roof is opened, when it is dried in, when other trades may walk on it and when the final roof check happens before the building is turned over.
Next check: what the project team can send
Send the project schedule, the roof plan if there is one, any prior survey and the list of equipment the new use will add. Include how the roof is reached and who approves a visit.
Owners with other property on Fort Union Boulevard or in the City Center area can use the same survey format on each building, which makes comparisons straightforward.
The project team gets a written record afterward, with photographs, sorted into work before build-out, during it and after.
Commercial Roofing Questions
When should the roof be examined in a renovation?
Before the interior is finished. A dated survey separates old conditions from new ones. A later dispute then starts from photographs and not from memory.
Who owns a leak that appears after build-out?
That is a contract question. The roof record supplies the dated facts for it. We provide dated photographs, readings and a written finding, and the parties apply their contract to those facts.
Can new equipment be added to an old roof?
Often, with proper curbs and flashing. The survey checks the membrane and the deck first. Sealed penetrations are photographed as they are made. Added weight is checked against the deck before the unit is ordered.
Does infill planning tell you the roof condition?
No. It describes land use. The roof walk establishes the condition. Infill and redevelopment goals say where buildings may be reused, not how their roofs were built.
What does a moisture survey add?
It maps wet insulation so the interior layout and the repair boundary can be set with the facts. Wet areas are cut out and replaced before the new use is installed beneath them. Added curbs, penetrations or equipment pads are flashed at the time they are made.
Start with the roof before the build-out
Tell us where water has shown up, what the project will add to the roof and how roof access works. We will walk the roof, record what we see and set the next test or repair boundary from the evidence.