Synthetic Waterproofing Membranes (PVC-P / TPO / FPO)
Romanian Technical Denomination: Membrane Sintetice Hidroizolante (PVC / TPO)
Single-ply thermoplastic waterproofing sheets hot-air welded at seams, delivering high elasticity, root resistance, and solar reflectivity.
LEVEL 1: QUICK UNDERSTANDING (EXECUTIVE SUMMARY)
INVESTORS & DEVELOPERSSingle-ply thermoplastic waterproofing sheets hot-air welded at seams, delivering high elasticity, root resistance, and solar reflectivity.
Large-span industrial and logistics flat roofs (mechanically fastened systems), Extensive and intensive green roof assemblies (root-resistant)
01. TECHNICAL OVERVIEW & ENGINEERING CHARACTERISTICS
Synthetic single-ply waterproofing membranes compliant with SR EN 13956. Plasticized Polyvinyl Chloride (PVC-P) and Thermoplastic Polyolefin (TPO/FPO) sheets reinforced with internal polyester mesh. Welded using automated hot-air equipment (450°C - 550°C) to form homogenous monolithic seams stronger than the parent sheet. Widely utilized in large-scale logistics flat roofs, green roofs, and drinking water reservoirs.
02. CONSTITUENTS & MANUFACTURING SPECIFICATION
- ▸Thermoplastic Polyolefin (TPO) or plasticized Polyvinyl Chloride (PVC-P) with UV stabilizers and flame retardants
- ▸Internal polyester scrim or glass fleece reinforcement
✓ ADVANTAGES & STRENGTHS
- •Completely flame-free installation using precision hot-air robotic welders
- •Lightweight single-ply installation (1.5 - 2.0 kg/m²), drastically reducing dead load on long-span roofs
- •High Solar Reflectance (Cool Roof effect), lowering indoor summer cooling air-conditioning loads
- •Exceptional root puncture resistance without supplementary chemical root inhibitors
⚠ LIMITATIONS & RISK FACTORS
- •Demands specialized certified installation technicians and daily test weld calibration
- •PVC membranes require separation geotextiles when in direct contact with EPS/bitumen to prevent plasticizer migration
- •Substrate must be completely free of sharp burrs or gravel that could puncture single-ply sheet