| Reinforced PVC Single-Ply Membrane | Flexible PVC membrane with an internal polyester scrim for dimensional stability and tensile strength. | Commercial buildings, warehouses, factories, offices, retail facilities, and low-slope roofs. | Loose-laid and mechanically fastened, adhered, or ballasted, depending on the roof design. | Strong and flexible Heat-welded seams Good weather resistance | Seam welding must be performed correctly. The membrane should be selected according to wind uplift, roof traffic, and substrate conditions. |
| Unreinforced PVC Membrane | Homogeneous PVC sheet without a reinforcing scrim, generally more flexible than reinforced membrane. | Flashing details, roof edges, pipe penetrations, gutters, drainage areas, and compatible detailing work. | Adhered or heat-welded to compatible PVC roofing materials. | Highly flexible Easy to form Useful for details | It normally has lower dimensional stability and puncture resistance than reinforced membrane, so it is less suitable for large exposed roof fields. |
| PVC Cool Roof Membrane | Reflective PVC membrane with a light-colored surface designed to reflect a portion of solar radiation. | Buildings in warm or sunny climates, especially facilities with high cooling demand. | Mechanically fastened, fully adhered, or other approved single-ply installation methods. | High solar reflectance Can reduce surface heating Welded seams | Energy performance depends on insulation, climate, building use, HVAC efficiency, roof orientation, and membrane cleanliness. |
| PVC Roofing for Chemical-Exposure Areas | Formulated PVC membrane selected for resistance to specific chemicals, oils, grease, or industrial contaminants. | Restaurants, food-processing facilities, laboratories, manufacturing areas, and industrial roofs. | Usually adhered or mechanically fastened, with welded seams and specially detailed penetrations. | Good chemical resistance Waterproof seams Suitable for demanding areas | Chemical compatibility must be verified for the actual substances, concentration, temperature, and exposure duration before specification. |
| PVC Membrane Over Existing Roof | A new PVC membrane installed over a suitable existing roof assembly, often with separation or cover boards. | Roof refurbishment projects where the existing deck and insulation remain structurally serviceable. | Adhered or mechanically fastened after inspection, preparation, and correction of moisture or substrate problems. | Can reduce tear-off work Faster renovation Less construction waste | The existing roof must be surveyed for trapped moisture, weak substrates, incompatible materials, drainage defects, and code requirements. |
| Mechanically Fastened PVC System | PVC membrane secured to the deck or structural substrate with approved fasteners and plates beneath or at membrane seams. | Large commercial roofs, warehouses, and projects requiring rapid installation. | Fasteners and plates are installed in designed patterns; membrane laps are hot-air welded. | Fast installation Material-efficient Easy to inspect | Fastener spacing and layout must be designed for wind uplift. Substrate type, fastener pull-out resistance, and thermal movement are critical. |
| Fully Adhered PVC System | PVC membrane bonded across the roof area to insulation, cover board, or another approved substrate. | Complex roof geometries, buildings where reduced membrane flutter is desired, and projects with limited fastening options. | Compatible adhesive is applied to the specified surfaces, followed by membrane placement and hot-air welding. | Smooth appearance Reduced flutter Suitable for irregular layouts | Adhesive selection, coverage rate, substrate dryness, temperature, and curing conditions affect performance and installation quality. |
| Ballasted PVC System | Loose-laid PVC membrane held in place by approved ballast, commonly rounded stone or concrete pavers. | Suitable low-slope roofs with adequate structural capacity and accessible roof layouts. | Membrane is loose-laid with protected seams and covered by a designed ballast layer or paver system. | Limited adhesive use Fast placement Potentially reusable components | Structural load, wind exposure, drainage, membrane protection, and safe access for future maintenance must be carefully evaluated. |
| PVC Roof Garden or Green-Roof Compatible System | PVC waterproofing membrane combined with protection layers, drainage, growing medium, and vegetation. | Extensive or intensive green roofs, terraces, and projects seeking additional roof functions. | Membrane is installed with protected seams and tested before the drainage and planting layers are added. | Waterproof foundation Supports roof landscaping Can improve stormwater management | Requires root resistance, robust protection, reliable drainage, structural capacity, maintenance access, and detailed waterproofing inspection. |