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TY-SHIELD™ TPO (Thermoplastic Polyolefin) waterproofing membrane — a hot-air weldable, single-ply polymer sheet for exposed roofing and sustainable infrastructure. White surfaces deliver a solar reflective index of 0.85 or higher; seams are fused by hot-air welding within a +400°C to +620°C window for monolithic, leak-free joints. Available in H (homogeneous), L (fabric-backed), and P (polyester-reinforced) types across 1.2mm, 1.5mm, and 2.0mm thicknesses. Confirm the applicable environmental, fire, and project requirements before specification.
Standard Roll Size
Customizable width and length
For project-specific pricing, send your technical requirements and destination port.
TPO (Thermoplastic Polyolefin) waterproofing membrane is a single-ply polymer sheet that has become the fastest-growing segment in the global commercial roofing market. It combines the flexibility of rubber with the heat-weldability of thermoplastics. Every seam is fused with hot-air welding at +400°C to +620°C — no open flame, no bitumen kettles — and the white surface reflects solar radiation with an SRI of 0.85 or higher, which measurably lowers roof surface temperature and building cooling demand.
For projects where a flame-free, self-adhered installation is preferred over mechanical fastening, see our Self-Adhesive Bitumen Membrane. Where a rubber-sheet system with taped or bonded seams is required, compare our EPDM Waterproofing Membrane — and for a polymer sheet with strong chemical resistance, review our PVC Waterproofing Membrane.
Selecting the right TPO type is the most important specification decision:
|
Type H — Homogeneous Best for general waterproofing and fabrication. |
Type L — Fabric-Backed Designed for direct bonding to substrates. |
Type P — Reinforced Polyester reinforced for mechanically fastened roofs. |
Select the reinforcement, thickness and surface finish to match your project requirements. Contact us with your specification for a tailored quotation.
| Configuration | Reinforcement | Thickness | Surface | Recommended Use |
|---|---|---|---|---|
| TPO H | Homogeneous (H) | 1.2mm / 1.5mm / 2.0mm | White / Grey / Custom | General waterproofing, fabrication, adhered and bonded assemblies |
| TPO L | Fabric-Backed (L) | 1.2mm / 1.5mm / 2.0mm | White / Grey / Custom | Fully adhered systems on insulation or prepared substrates |
| TPO P | Polyester Reinforced (P) | 1.2mm / 1.5mm / 2.0mm | White / Grey / Custom | Mechanically fastened exposed roofs and wind-prone decks |
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All thicknesses and surface finishes shown are available in standard production. Custom roll dimensions, packaging and private-label printing are available subject to minimum order quantity. Final configuration should be selected according to climate, substrate, waterproofing system design, exposure condition and local project specifications.
The default single-ply specification for offices, retail, and institutional low-slope roofs, where white TPO's SRI 0.85+ surface measurably reduces summer cooling load and helps meet cool-roof code and green-building requirements.
Large-span industrial decks are mechanically fastened with P-type TPO (≥ 250 N/cm max tension), delivering wind-uplift resistance and fast installation without open flames — a key advantage over torch-applied systems on occupied or fire-sensitive plants.
The -40°C low-temperature flexibility and plasticizer-free matrix suit cold rooms, freezer plants, and logistics hubs, where PVC-type sheets can stiffen or lose plasticizer over time at sustained low temperatures.
Lightweight TPO re-cover systems can be laid over existing membranes after surface preparation, avoiding tear-off costs and roof downtime. Hot-air welded seams keep the retrofit fully watertight without bitumen kettles or torches.
Hot-air welding fuses the sheet into one continuous surface. GB 27789 joint peeling strength is ≥ 4.0 N/mm — the seam performs as part of the membrane, not as a weak line.
Mechanically fastened, fully adhered, and ballasted assemblies are all supported. The same H/L/P product family covers exposed roofs, bonded systems, and protected membranes.
With no migrating plasticizers, the sheet does not shrink, harden, or become brittle as it ages. Dimensional stability under heat aging (≤ 1.0% change) keeps fasteners and seams under control.
The halogen-free polyolefin formulation is compatible with polyolefin recycling streams, supporting EPD documentation and LEED / BREEAM material credit objectives where product documentation is available.
TPO, Type P (Reinforced), 1.5mm, White Surface (Representative Configuration)
| Test Item | Unit | Test Method | Requirement | Result / Notes |
|---|---|---|---|---|
| Tensile Strength (H type) | MPa | GB 27789 | ≥ 12.0 | 14.0+ |
| Elongation at Break (H) | % | GB 27789 | ≥ 500 | 600%+ |
| Max Tension (L type) | N/cm | GB 27789 | ≥ 200 | ≥ 200 |
| Max Tension (P type) | N/cm | GB 27789 | ≥ 250 | ≥ 250 |
| Tear Strength (P type) | N | GB 27789 | ≥ 450 | ≥ 450 |
| Watertightness | MPa | GB 27789 | 0.3 MPa, 2h | No Leakage |
| Low Temp Bending | °C | GB 27789 | -40°C No crack | Typical value; confirm with the product TDS |
| Joint Peeling Strength | N/mm | GB 27789 | ≥ 4.0 | ≥ 4.5 |
| Solar Reflectance (White) | SRI | ASTM C1549 / E1980 | ≥ 0.85 initial | 0.85–0.90 (typical white) |
| Dimensional Change (Heat Aging) | % | GB 27789 | ≤ 1.0 | Typical value; confirm with the product TDS |
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Values shown apply to the stated product configuration. Other types (H / L / P), thicknesses (1.2mm / 1.5mm / 2.0mm), colors, and reinforcement options may have different performance values. GB 27789-2011 is the current edition; confirm the applicable product TDS and batch test report before specification or procurement.
Cross-reference for engineering specifications & global procurement
| Property | China (GB) | USA (ASTM) | Europe (EN) |
|---|---|---|---|
| Tensile Strength | ≥ 12.0 MPa (H) | ASTM D6878 | EN 13956 |
| Low Temp Flexibility | -40°C | Reference value; confirm with the product TDS | EN 495-5 |
| Joint Peeling Strength | ≥ 4.0 N/mm | ASTM D6878 | EN 12316-2 |
| Compliance Status | GB 27789-2011 | Equivalent | Equivalent |
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* Technical Note: The values shown are reference information for the selected product configuration. Confirm the applicable standard, test method, certification scope, and product-specific documentation with our technical team before specification.
Ensure the substrate is smooth, dry, clean, and structurally sound. Remove sharp projections and standing water.
Mark reference lines according to the roof layout plan. Pre-pave the TPO membrane and allow it to relax.
Secure the membrane at the overlap area using approved fastening components (screws and plates).
Using calibrated hot-air welding equipment, weld all overlapping seams. A continuous bead of molten material should be visible at the edge.
TPO rolls are wound on rigid cores, wrapped in protective film, and secured on fumigated pallets with corner protectors and strapping. The film shields the polyolefin surface from UV and abrasion during ocean transit.
Roll width, length, and color are configurable at production. Custom core labels and branded packaging are supported for distributor and contractor programs.
Store rolls upright in original packaging, indoors, away from direct sunlight, heat sources, and sharp objects. Extended outdoor exposure of unpacked rolls can affect surface appearance and weldability; keep storage under cover.
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