Spray Foam Roofing
One seamless, insulating roof system for flat roofs and steel buildings.
- Seamless, Self-Flashing System
- Adds Insulation Value
- Applied Over Most Existing Roofs
- 20-Year Warranties Available
GET YOUR FREE ESTIMATE
Fill out the form and we'll get back to you shortly.
GET YOUR FREE ESTIMATE
Fill out the form and we'll get back to you shortly.
Why building owners choose SPF
Spray polyurethane foam goes on as a liquid and expands into a single, continuous layer that bonds to the roof, flows around every penetration and curb, and hardens into a closed-cell roof with no seams to fail. It is then protected with an elastomeric coating that takes the weather.
- No seams, no fasteners. The two places most roofs leak don't exist on an SPF roof.
- Insulation built in. Closed-cell foam adds R-value with every inch, which matters on an uninsulated steel building.
- Goes over the existing roof. In most cases there is no tear-off, so there's no downtime and no disposal cost.
- Fixes ponding. Foam can be built up to create slope where water sits.
- Renewable. When the coating wears, it gets recoated. The foam underneath lasts for decades.
Where it fits
Flat and low-slope commercial roofs, metal roofs on shops and warehouses, agricultural buildings, cold storage, and any building where energy cost or condensation is a problem. We'll inspect the roof and tell you whether SPF or a coating-only restoration is the better fit.
WHY BUILDING OWNERS CHOOSE BOTHUN ROOFING & COATINGS
Restore or replace, whichever the roof needs
We install new TPO and PVC roofs and we restore existing ones with fluid-applied systems. You get the option that fits the roof, not the one we happen to sell.
Certified by the manufacturers
IB Roof Systems certified installer for single-ply membranes and American WeatherStar Platinum contractor for coating systems. Both back our work with manufacturer warranties.
18 years in the region
Based in Dawson, MN and working across Minnesota, South Dakota, North Dakota & Iowa since 2008. Brian Bothun oversees every project.
Honest assessment first
We inspect, scan for moisture, and tell you what the roof actually needs. If a repair is enough, that's what we quote.
Licensed, insured, warrantied
Licensed and insured in the states we work in, with manufacturer warranties up to 30 years on single-ply roofs and 20 years on most coating systems.
Free, no-pressure estimates
Call or send the form. We'll look at the roof and give you a written estimate with no obligation.
WHAT OUR CUSTOMERS SAY
★★★★★“The Bothun team provides top-notch professional service. We were able to work together on a project and from start to finish they were "on it." Very satisfied by their professionalism and attention to details. A+ contractor!!!”
★★★★★“I experience nothing but dedicated professionalism from the Bothun team. We had the entire flat roof removed and reinstalled on our church activity center. Very knowledgeable and honest about their products and no hidden cost.”
Get a free estimate on your commercial roof
Tell us about the building and we'll come take a look. No pressure, no obligation. Prefer to talk?
CALL US: 320-981-0295GET YOUR FREE ESTIMATE
Fill out the form and we'll get back to you shortly.



