North Dakota
Commercial Roofing
The deepest frost line and the coldest design temperatures in our territory, on buildings that hold a harvest: North Dakota is an agricultural roofing market first.
- Cities served
- 13
- Frost depth, statewide
- 60in
- Design wind, ASCE 7-16
- 100–115mph
- Snowfall range
- 21.9–44.6in
- Response
- 24 business hrs
Thirteen cities, west to east
What North Dakota changes
The deepest frost line we work in
North Dakota sets a minimum 60-inch frost depth statewide — deeper than any other state we serve. It governs how these buildings are founded, and it is a fair proxy for how hard the winter works on everything above it.
Snow load is a county table, not a map
The state replaces the ASCE 7 ground snow map with a mandatory county-by-county table in the building code. A national map estimate is not just imprecise here — it is the wrong instrument. We design to the county value.
The west is not the dry half
Williston averages 42.8 inches of snow against Dickinson's 21.9, both in the west. Snowfall here tracks storm track, not longitude, so assemblies are specified city by city.
Grain storage, livestock barns, machine sheds and potato storage
Closed-cell foam adheres directly to metal panel and purlin, insulates and air-seals in one pass, and moves the condensing surface outside the building.
North Dakota buildings hold a harvest. The roof is part of the storage system.
A-1 Roofing works 13 North Dakota cities with SPF, coatings and restoration, designed to the county ground snow load and the state's 60-inch frost depth.
41-year commercial roofing and insulation record
What a North Dakota roof is up against
Cold continental with a 60-inch statewide frost depth, long heating seasons, and wind-driven snow redistribution across open plains. Across the 13 North Dakota cities on this site, the freeze-thaw estimate runs from 90–101 cycles a year, hardest in Devils Lake and lightest in Dickinson. Average snowfall spans 21.9–44.6 inches, with Bismarck at the top of the range.
The building stock leans toward agriculture, energy, food processing, transportation and government/military. Each city page below carries its own climate loads, code figures, local building context, and a data-derived FAQ.
| City | Freeze-thaw | Snowfall | Design wind | Lead sector |
|---|---|---|---|---|
| Fargo | 98est./yr | 41.8in | — | technology |
| West Fargo | 98est./yr | 41.8in | — | distribution |
| Grand Forks | 99est./yr | 38.8in | — | higher education |
| Grafton | 100est./yr | 38.8in | — | agriculture |
| Bismarck | 94est./yr | 44.6in | — | government |
| Mandan | 94est./yr | 44.6in | — | energy |
| Minot | 97est./yr | 35.4in | — | government/military |
| Williston | 92est./yr | 42.8in | — | energy |
| Dickinson | 90est./yr | 21.9in | — | energy |
| Jamestown | 96est./yr | 22.9in | — | agriculture |
| Valley City | 96est./yr | 22.9in | — | agriculture |
| Devils Lake | 101est./yr | 24.5in | — | agriculture |
| Wahpeton | 97est./yr | 41.8in | — | food processing |
Freeze-thaw counts are derived estimates. Snowfall is the NOAA 1991-2020 normal for the nearest station. Design wind is the ASCE 7-22 basic wind speed estimate; confirm with the local building department before specifying.
North Dakota roofing facts
- 01Which North Dakota cities does A-1 Roofing serve?
- A-1 Roofing covers commercial roofs across North Dakota, with dedicated local pages for 13 cities: Fargo, West Fargo, Grand Forks, Grafton, Bismarck, Mandan, Minot, Williston, Dickinson, Jamestown, Valley City, Devils Lake, and Wahpeton. Buildings outside those cities are served too; the pages exist because each city carries its own climate and code figures.
- 02Does A-1 Roofing have an office in North Dakota?
- No. A-1 Roofing & Insulation Systems is headquartered in Platte, South Dakota, and serves North Dakota as a service-area contractor: crews travel to the job, and a free on-site assessment is scheduled the same way it is for a South Dakota building.
- 03How many freeze-thaw cycles do North Dakota commercial roofs go through?
- Across the 13 North Dakota cities A-1 tracks, the estimate runs from 90 to 101 cycles a year. North Dakota sets a minimum 60-inch frost depth statewide -- deeper than any other state we serve -- and replaces the ASCE 7 ground snow map with a mandatory county-by-county table in the state building code.
- 04How much snow do North Dakota roofs carry?
- Average annual snowfall across those cities ranges from 21.9 to 44.6 inches (NOAA 1991-2020 normals). Drift against parapets and rooftop units, not the season total, is what an assessment checks.
- 05Which roof systems does A-1 install in North Dakota?
- Spray polyurethane foam roofing, silicone and acrylic roof coatings, and in-place restoration of single-ply, metal, built-up, and modified bitumen roofs, plus roof repair and inspection. The climate here (cold continental with a 60-inch statewide frost depth, long heating seasons, and wind-driven snow redistribution across open plains) favours seamless systems that expand and contract as one surface.
- 06How quickly does A-1 respond to a North Dakota roofing call?
- The target is 24 business hours for a first response anywhere in North Dakota. Active leaks are prioritised ahead of scheduled assessments, and the assessment itself is free.
Commercial roofing services for North Dakota
- Commercial roof restorationRecover the roof you have instead of tearing it off
- Spray polyurethane foam roofingSeamless SPF with a reflective silicone topcoat
- Metal roof coatingSeal seams and fasteners on ribbed and standing-seam metal
- Silicone and acrylic roof coatingsRenewable fluid-applied membranes over sound substrates
- Commercial roof inspectionMoisture surveys and a written condition report
- Commercial roof repairLeak response, contract maintenance, storm damage