The Battle of the Single-Plies Choosing between TPO vs PVC roofing for commercial buildings is a decision that involves chemistry, physics, and long-term financial modeling. For facility managers in Pelham and Birmingham, the stakes are high. A 50,000 sq. ft. facility is a massive capital asset, and selecting the wrong membrane can lead to premature embrittlement, seam failure, and skyrocketed energy costs. While both membranes are white, reflective, and "single-ply," they ar