TPO membrane thickness refers to the gauge of Thermoplastic Polyolefin roofing material, which impacts durability, flexibility, and weather resistance. Common thicknesses range from 45 mil to 80 mil, with thicker membranes offering enhanced puncture resistance and longevity. Choosing the right thickness depends on factors like climate, foot traffic, and warranty requirements. Proper i... https://naples-roofing.com/how-thick-should-a-tpo-roof-be/