Single ply roofing is one of the most widely used solutions for commercial and industrial buildings because it offers a durable, efficient, and proven way to waterproof low slope roof systems. At Top View Roofing, we install and service single ply roofing systems designed to handle Oklahoma weather, including intense sun, high winds, heavy rain, and hail events. Single ply roofs are commonly selected for their long term performance, ease of maintenance, and strong waterproofing when installed correctly. The key is choosing the right membrane and installing it with the detail work that prevents leaks over time.
Single ply refers to roofing membranes installed in a single layer, typically over insulation and a suitable substrate, then sealed at seams and detailed at edges and penetrations. The most common single ply membranes include TPO, PVC, and EPDM. Each has distinct characteristics and best fit applications. TPO and PVC are thermoplastic membranes, meaning seams are commonly heat welded to create a fused bond. EPDM is a synthetic rubber membrane, commonly adhered with adhesives and sealed at seams using tapes or adhesives depending on system design.
Single ply systems are popular because they offer consistent waterproofing and predictable performance. When seams are properly welded or sealed and details are executed correctly, a single ply roof can resist water infiltration effectively. Because many single ply membranes are light colored, they can also provide reflectivity that reduces roof surface temperature, potentially improving energy efficiency and reducing cooling loads. This is especially helpful on large commercial roofs exposed to Oklahoma sun.
Installation method matters in single ply. Systems can be mechanically attached, fully adhered, or installed as ballasted systems in some contexts. Mechanical attachment can be cost effective and can perform well when designed properly, but perimeter and corner zones require careful fastening patterns for wind uplift resistance. Fully adhered systems can offer excellent performance and reduced fluttering, but require proper substrate prep and adhesive application. Top View Roofing helps building owners choose the method that best matches building requirements, wind exposure, and budget.
Detail work is where single ply roofing succeeds or fails. Leaks most commonly occur at penetrations, edges, terminations, and transitions. That means pipe penetrations must be flashed with compatible materials, rooftop units must have correctly built curbs and flashings, and parapet walls must have secure terminations with appropriate protection. Coping and edge metal must be integrated to protect the membrane termination. Drains and scuppers must be detailed properly to prevent water backup and infiltration. Walk pads may be needed in high traffic zones to reduce wear.
Drainage is also critical. Low slope does not mean no slope. A good single ply roof should direct water to drains efficiently and minimize ponding conditions. Ponding water increases stress on seams and details and can shorten roof life. During installation or replacement, Top View Roofing evaluates drainage and may recommend improvements like tapered insulation or localized corrections to promote positive flow.
Maintenance for single ply roofs is practical and cost effective when done proactively. Regular inspections identify seam issues, punctures, and detail wear before leaks develop. Many single ply issues can be repaired locally if caught early, which extends roof life and protects the roof assembly. For facilities with lots of rooftop equipment, maintenance is especially important because service traffic increases puncture risk.
Single ply is an excellent solution for many commercial buildings, but selecting the right membrane is important. TPO is commonly chosen for value and reflectivity. PVC may be chosen for chemical resistance and performance in certain environments. EPDM may be chosen for durability and flexibility, particularly in systems where black membrane is acceptable and energy strategies are handled with insulation. The right choice depends on building use, exposure, and long term goals. Top View Roofing explains the pros and cons and helps you select the best fit.
If you need a new commercial roof, a replacement, or a repair strategy, Top View Roofing can help you evaluate single ply options and design a system that fits your building. With correct installation and routine maintenance, a single ply roof can deliver years of reliable performance and protect your property through Oklahoma weather cycles.
