A patch on top of an older patch is a roof telling its owner that the question has changed from where it leaks to how long it needs to last. Sandy's 90th South Gateway plan addresses development in the city's northwest area and treats the gateway as an area master-plan geography for coordinated future development, and the city's economic-development program supports commercial, office, retail and employment growth across its planned areas. An owner in a planned area has a second clock running beside the roof's own: the time horizon for the property. We start with the roof and then ask about the horizon, because a building that will be held for the long term and one that may change soon need different decisions about the same membrane.
That is the order of the walk: the roof first, then the plan for the property, then the route that fits both.
What failed first: the older repair
When a roof has been patched several times, the newest leak often starts at the edge of the oldest repair. Sealant cracks at a seam where it was spread over a gap. A patch lifts at a corner because the surface underneath was dusty or damp when it went on. The membrane around a repair stiffens with age, so the repair and the field move differently.
We look at every patch and rate it: holding, loose at an edge, or open. We note how many patches sit in one zone, because a cluster means the zone itself is the problem and not the individual holes. That finding often decides whether the next step is a bigger repair, a coating or a replacement of the whole section.
Sun matters here as well. A patch on a south-facing slope sees more movement through the warm months than one in shade, so we note the orientation of each repair and whether the surface around it has chalked, cracked or gone brittle.
Roof-walk notes: a record built to be compared
The first walk produces a record that can be compared with the next one. It names each roof section and its drainage path, lists each penetration and patch, and attaches a photograph to every entry. If the owner later decides to redevelop, sell or lease, the record shows the roof's condition at a specific date and what was done about it afterward.
- Roof sections, falls and the outlets they serve
- Patches, rated holding, loose or open
- Penetrations and the flashing around each
- Edge metal, gutters and downspouts
- Wet or soft areas found by probing or moisture reading
A roof capital plan turns those entries into a multi-year schedule the owner can compare with property plans.
Orientation goes in the notes too: a north-facing slope keeps snow longer and melts it into the same drains for days, while a sunny slope thaws and refreezes at night.
Drainage and melt: low spots tell the story
Snow lingers in low spots and on the north side of rooftop units, and it melts into the same few drains. Winter snowfall and snow depth in the Salt Lake City airport normals give a valley-wide picture, and exposure at the property itself is confirmed on the roof. After a melt we look for staining and silt around bowls, for water that remains after neighboring areas have dried and for ice at the roof edge.
A low spot that holds water for days is a finding in its own right. It ages the membrane faster than the surroundings and can hide a seam failure under standing water. The record gives the depth, the likely cause and whether an added drain, a tapered correction or a simple clearing would address it.
Repair boundary: three routes with a date on each
For a building in a planned area, we lay out three routes. The first is a targeted repair that stops active leaks and leaves the roof otherwise as it is. The second is a restoration, such as a coating over a dry, attached membrane after seams and flashings are fixed. The third is a replacement of wet or failed layers.
Each route gets a rough service life stated as a range tied to the roof's condition, a list of what it leaves open and the evidence behind it. An owner who expects the property to change can choose the first route and watch; an owner who plans to hold it can choose the third and fix drainage at the same time. The choice stays with the owner, and the record stays useful either way.
Each route is priced on the same inputs: layers, wet insulation, penetration count, edge length to rebuild and access. We list them next to each route so the owner can see why one costs more than another before any number is discussed.
Seasonal timing: the window and the plan
Cold limits what coatings, adhesives and welds can do, so full projects are scheduled for warm, dry stretches. In winter, temporary protection and small repairs are possible only when the surface can be cleared and dried. We ask when the building is quietest, when deliveries arrive and where the lift can stand.
The 2024 building and energy codes became effective in Utah on July 1, 2026, with amendments, and the statutory edition before them is due to be superseded on January 1, 2027. A replacement scope is checked against the edition that applies to the permit, including insulation levels, before it is priced.
Between projects, a preventive maintenance visit in spring and fall keeps drains clear and watches the older patches, which is often the cheapest way to hold a roof through an uncertain stretch.
Next check: what the owner can send
Send the roof plan, repair invoices, leak dates and any redevelopment timeline the owner is willing to share. We will walk the roof, rate the patches, measure the low spots and write down which route fits.
Owners who also hold property in Sandy Corners or the downtown commercial district can run all of their buildings through one record format, which makes the capital schedule easier to see.
If a lender, tenant or buyer asks about the roof, the record answers with dates, photographs and a stated condition, which is more useful than a general statement that the roof is old or new.
Commercial Roofing Questions
Should an owner repair or replace if redevelopment is possible?
Repair what leaks now and keep the larger choice open. The record shows when replacement becomes the better value. Photographs and dated notes make that comparison easy for whoever owns the building next.
How long will a coating last?
It depends on the roof under it. We state a range after the walk and the moisture check, with the condition that would shorten it. Coating over wet insulation would trap the problem, so wet areas are cut out first.
What does a rating of loose or open mean for a patch?
Loose means an edge has started to lift and should be resealed. Open means water can enter and the patch needs rework. We photograph each rating so the next visit can see whether a patch has changed.
Can a roof be repaired in winter?
Small repairs sometimes can, when the surface can be cleared and dried. Larger work waits for suitable temperatures. Temporary protection can be placed at a known weak point until a window opens.
How do you decide how much to spend on an older patched roof?
We rate each patch, measure the low spots and test the insulation, then price the cheapest route that keeps the roof dry for as long as the owner needs it. The photographs let that choice be reviewed later.
Start with where the water showed up
Tell us where water appears, when it appears and how roof access works. We will walk the roof, rate each repair and set the next test or boundary from what we see.