The strength of an American leader.
The heart of a roofing family.

Barrier is among the most recognized and respected names in commercial roofing and solar, one of the largest companies in our industry with projects involving millions of square feet every year. And while we’re proud to have earned such a leadership role, we never want to outgrow the values that founded our company back in 1999 – values based on four generations of commercial roofing experience.

Barrier’s founder, Blair Cunnings, carries on the family legacy of commercial roofing excellence, building a company that committed itself to excellence and expertise in roofing, coating, insulation and solar systems. As Barrier grew from its Central California roots, providing commercial roofing and solar solutions for an ever-expanding range of clients, so did its reputation for innovation and superior service. Soon, Barrier’s team of highly-trained technicians were actively working not only in California, but throughout the Western U.S. as well as Hawaii, Texas and Florida. International projects naturally followed, cementing Barrier’s status as an industry leader with truly world-class capabilities.

What do our size, experience, capabilities and track record of client satisfaction mean for you? They add up to make Barrier the commercial roofing and solar company uniquely qualified to give your enterprise the protection it needs. Backed by the personal commitment you deserve.

Barrier is backed by the commercial roofing industry’s top manufacturers, including: BASF, Sika-Sarnafil, RTC, Gaco Western, Astec, Bay Systems, General Coatings and United Coatings. Additionally, Barrier is a member of the National Roofing Contractors Association, the Sprayed Polyurethane Foam Association and the Better Business Association.




“In my business, time is money. I know the job is going to be done with Barrier, and I can move on to the next project.”
John Kashian, Caddis Properties
Having completed over 65 successful projects with Barrier Roofing as a part of the Span Construction team, I can without question recommend them for your next project.
Ernie Brandi, Span Construction and Engineering Inc.
Barrier nitro coating was applied to the walls, floor and ceiling in our new dairy milking barn. We are completely satisfied – not only is it very durable, but it also cleans up very well without much effort.”
Frank D. Borba, FDB Holsteins
Barrier put a polyurethane foam roof over 200,000 square feet at our facility, which has saved us over 30% on our energy bill – and without any leaks!
Jim Reed, Charles Krug Winery