RoofSource specializes in low slope and commercial roofing materials and specification writing. Our company has earned its reputation as a contractor and building owners trusted advisor while also servicing architects, consultants, property managers, and facility owners seeking top-tier roofing systems and wall assemblies. At the heart of RoofSource is John Segin, the company’s founder. With over forty years of combined experience in roofing materials specification and sales, John has been a leading expert in thermal performance and moisture protection in building design. He has represented major national manufacturers in roofing, waterproofing, insulation, and air/vapor barrier product lines, and is passionate about educating design professionals through AIA-certified courses in Arizona and Southern California RoofSource LLC LinkedIn. Beyond his professional pursuits, John finds balance in playing golf, strumming the guitar or bass, and traveling. The company began when Brent Bonnell, Scotty Greenfield, and John Segin combined to establish RoofSource. That leadership trio created diversified product offerings and enhanced services for building professionals across the Southwestern U.S. Brent Bonnell now serves as President, with more than two decades in technical sales and marketing within the roofing and building materials sector, Brent blends expertise with strong customer centered strategy: aligning roofing product technologies with client budgets, usage needs, and warranty goals. Brent also emerges as a thought leader—guest hosting the Ask My Roofer podcast where he discusses leveling the bidding playing field, helping professionals ask smarter questions to win more jobs . His approachable style reflects RoofSource’s ethos: combining technical depth with collaborative service. RoofSource’s team—guided by John’s deep building science knowledge and Brent’s dynamic sales leadership—offers a portfolio that includes complimentary roof evaluations, specification writing, roof restoration and maintenance planning, single ply roofing (PVC, TPO), acrylic and silicone coatings, modified bitumen systems, and more. What sets RoofSource apart is its commitment to the consumer: educating the design and contracting community, and delivering tailored solutions rooted in experience. It’s a company led by seasoned experts, yet driven by an evolving vision: to keep buildings safe and performing with the best available products and practices. In the ever changing field of commercial roofing, RoofSource stands as a steady partner, integrity, expertise, and innovation. With our ten team members covering three states and hundreds of thousands of roofing area, rest assured Roofsource is more than your resource; Roofsource is your best source for roofing and waterproofing.
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