Commercial Roofing Contractors
in Green Bay, WI

Nasi Roofing is proud to employ professional commercial roofing contractors in Green Bay, Wisconsin. Since 1983, we have been installing and replacing commercial roofs throughout Wisconsin and Michigan. We are also trusted installers of Duro-Last roofing products. We have extensive experience in installing over 2,000 flat roofs, totaling over 10 million square feet of membrane and invaluable levels of customer satisfaction!

A Duro-Last roof is uniquely designed and different from other single-ply roofs. Since it is prefabricated to reduce seams by up to 85 percent, it will fit like a glove over the roof of your building. What makes Duro-Last a quality product is that it may never need repairing when properly installed. If it does become in need of repair, though, Nasi Roofing has the knowledge and professional experience of performing repairs on a Duro-Last roof.

You can also keep the Duro-Last warranty intact by letting us complete the repair for you. Repairs must be handled carefully because not all PVC roofing responds equally well to chemical solvents or heat seaming. You need to have the right tools, the correct thickness of repair material in millimeters, and the proper Duro-Last training in order to make the job a breeze and deliver quality results. Nasi Roofing is an authorized Duro-Last commercial roofing contractor in Green Bay, WI, and is consistently listed among the top Duro-Last contractors in the nation.

The Midwest brings many different types of weather conditions, which means you will need a roof that can withstand all types of inclement weather! With over three decades of premium-quality PVC roof system performance with billions of square feet of durable membrane that have been installed all across North America, Duro-Last offers solid quality and protection for not just your roof, but to everyone underneath it.

We have the flexibility to work with your schedule without interruption during our installation process. Our roofing crew is committed to ensuring your project is completed on-time and within your budget.

As expert commercial roofing contractors in Green Bay, Wisconsin, we inspect every job our roofing company completes, followed by an assessment by a Duro-Last quality assurance technical representative, before issuing your roofing warranty.

Duro-Last Roof Maintenance Guide

Duro-Last Warranty Requirements

You should review your roof regularly, but in years 10, 15, 20 and 25 your roof must be inspected by Duro-Last. Your roof must be inspected by Duro-Last two years prior to your warranty expiration.

Duro-Last Roof Warranty Requirements