In central Wisconsin, a commercial roof's year has two critical moments: the fall, before it disappears under snow for months, and the spring, when the snow melts and shows what the winter did. Inspecting at both catches small problems while they are still cheap.
Fall checklist: before freeze-up
- Drains, strainers and scuppers cleared of leaves and debris. A half-clogged drain freezes first.
- Gutters and downspouts on flat sections cleared and flowing.
- Seams probed and lifted edges sealed before freeze and thaw opens them further.
- Flashings at walls, curbs and pipes checked for gaps and cracked sealant.
- Heat trace in drains and scuppers tested, if installed.
- Loose items removed: debris, old equipment, anything that could puncture the roof under snow.
- Snow plan agreed: who clears drifts, with what tools, and when.
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Spring checklist: after the thaw
- Cuts and punctures from snow and ice removal.
- Seams and laps opened by freeze and thaw.
- Flashings and edge metal pulled by ice or wind.
- Ponding where ice sat all winter. See ponding water on a flat roof.
- Interior signs: new stains, especially along outside walls and near drains.
- Rooftop units: damage from winter service visits.
After storms
After hail or high wind, check for bruised or cracked membrane, lifted edges and dented metal, and photograph everything with dates. See storm damage and insurance claims.
What a good inspection report includes
- Photos of the whole roof and of every issue found
- Each issue ranked by urgency
- A separate price for each repair, so you approve only what you want
- Overall condition and estimated remaining life for budgeting
See inspections and maintenance plans.