PVC/TPO Membrane
In low slope roof systems with a slope under 5%, one side membraned roof panels are used. PVC (polyvinylchloride) and TPO (polyolefin) membranes are insulation membranes that are laminated with reinforced felt layer and welded together with hot air ,resistant to atmospheric conditions and UV.
Thanks to the polyester reinforcement, it has a high resistance to tearing and dimensional stability. Reinforced laminated felt layer ensure strong adhesion of membrane to the insulation core and prevent direct contact of membrane with insulation core. It provides fire, heat and water insulation in low sloped roofs.
| Properties | PVC | TPO |
|---|---|---|
| Membrane | Membrane | |
| Elongation % | 300 | 300 |
| Elongation at Break (N) | 18 | 19 |
| Returning to Old Form in %100 Elongation | Yes | No |
| Vapor Permeability Diffusion Factor (µ) | Yes | No |
| 25,000 | 370,000 | |
| UV Resistance | Partially | Yes |
| Bitumen Compliance | No | Yes |
| Resistance to Chemicals | Partially | Yes |
| Root Strength | Yes | Yes |
| Joint Aplication Technique | Welding with Hot Air | Welding with Hot Air |
| Ease of Repair | Yes | Yes |
| E quivalent Thickness Required to be used | 1,20-1.50mm | 1,20-1.50mm |