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Commercial Flat Roofing | North Central Wisconsin | NCW Exteriors

North Central Wisconsin Commercial Flat Roofing


NCW Exteriors specializes in flat roof installation and repair throughout Central Wisconsin. Investing in a flat roof is a massive decision and we want to help you make the right investment. Our expert estimators, project managers, and roofing crews will happily answer any questions regarding your specific commercial or industrial flat roof needs in WI.

Our crew is experienced and trained to fully install, repair, restore, or maintain your roof. We understand that the show must go on, so we take this into account when we schedule our services. While we are meticulous, we strive to complete our work in a time-efficient manner.

Flat Roofing Benefits

Many commercial properties feature flat roofs. Waterproofing a flat or low slope roof requires special attention to detail to ensure a watertight seal even in the event of standing water on the roof.

NCW Exteriors has been dedicated for 20 years to resolving commercial roofing problems and is a Duro-Last® Master Contractor in Wisconsin.

Official Duro-Last Logo
Energy Star Logo

Energy Efficient.

Our white membrane reflects over 86% of the sun’s energy, providing years of savings in cooling costs. Plus, Duro-Last is a charter partner of the ENERGY STAR® Roof Products Program. Additional local, state and federal incentives are often available.


Being comprised of a flexible membrane able to expand and contract with temperature changes, this roof system eliminates the risk of rooftop leaks.

Resistant to Chemicals, Fire, and Weather.

This makes Duro-Last ideal for ANY TYPE of flat-roofed business operating in our extreme hot-cold Wisconsin weather environment.

Relatively Non-Disruptive to Install.

The membrane can be installed over most new or existing substrates virtually eliminating the need for tear-offs and disposal. Because 85% of the membrane is seamed in-factory, work crew labor time is greatly reduced.

Clean and Safe.

Hot air welding is used to fully bond seams so there are no unpleasant odors or use of dangerous chemicals. Duro-Last has earned NSF/ANSI 347 Platinum certification for sustainability.

Code Compliant.

Duro-Last has been approved by the International Building Code (IBC), approved by Factory Mutual as a 1-60, 1-90, 1-105, 1-150 and 1-210 roofing system, and listed by Underwriters Laboratories as a UL Class A material.

Warranty of Our Flat Roofs

Duro-Last’s warranty is considered the best in the business because:

  • It is included at no additional cost.
  • Each project is inspected upon completion by a Duro-Last Technical Representative to ensure the roofing system installation specifications were effectively executed for warranty approval.
  • The warranty is issued directly from the Duro-Last Quality Assurance Department.
  • It is valid for 15 years (40-MIL Membrane) or 20 years (50-MIL Membrane) during which time you pay nothing for materials or labor for any covered repairs and/or replacement.
  • The warranty is completely transferable, at no extra charge, to a new building owner.
Flat Roof Element Before Maintenance

In addition to providing exceptional craftsmanship, we place emphasis on quality customer service. At NCW Exteriors, our experience, expertise, and dedication to customers’ needs make us the number one choice for a commercial flat roofing contractor. We are proud to serve North Central Wisconsin, so whether you are in need of installation or repair, contact us today.

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