Which Commercial Roofing System Performs Best in Desert Heat? When choosing a commercial roofing system in Arizona, performance in extreme heat matters more than marketing claims. Building owners across Phoenix, Tucson, Mesa, Casa Grande, and Yuma frequently compare: Spray Polyurethane Foam (SPF) Roofing TPO Roofing Built-Up Roofing (BUR) Each system has strengths. But in Arizona’s 110°+ summers, UV exposure and thermal expansion create unique challenges. This guide compares
