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JY-ZPU Self Adhered Membrane Self-Adhesive Polymer Waterproof Membrane [PY]
Great Ocean Waterproof JY-ZPU Self Adhered Membrane is a self-adhesive polymer waterproofing membrane produced in our China factory located in Shandong Province. This self adhesive waterproof membrane [PY] consists of a durable cross-laminated HDPE surface film, a pressure-sensitive polymer bitumen compound core, and a split-release silicone liner that peels away cleanly during installation. As the manufacturer, Great Ocean Waterproof rolls it to 1 m × 20 m standard size, stacks the rolls on wooden pallets, and supplies directly to contractors in the self adhered roofing membrane market. Price is listed per square meter and varies only with order quantity and shipping terms. The membrane sticks firmly to prepared concrete, steel, or plywood substrates, seals around penetrations and overlaps, and requires no heat or separate primers for most flat-roof and wall projects.
Product Introduction
The JY-ZPU Self Adhered Membrane is a self-adhesive polymer modified asphalt polyester tire waterproofing membrane designed for reliable below-grade and roofing applications. Built with petroleum asphalt as the primary base, it incorporates SBS and SBR modifiers for enhanced flexibility and durability. The core reinforcement consists of polyester tire base fabric, providing structural stability.
Upper surface protection features a polyethylene film (PE film) or peelable silicon-coated isolation film, while the lower surface uses peelable silicon-coated isolation film to enable clean, secure bonding during installation. This self-adhered waterproofing membrane is supplied in curled sheet form, making it suitable for flat or low-slope surfaces where a robust self adhesive waterproof membrane for roof is required. The design supports straightforward peel-and-stick application without additional adhesives in most conditions.
| Thickness(mm) | 3.0 / 4.0 | Length(m) | 10 / 15 | Width(m) | 1.0 |
| Surface | PE | Underface | Separator | ||
Key Features
- Strong Adhesion: The built-in adhesive resin delivers firm bonding to the substrate, ensuring a secure self-adhesive waterproof membrane with no detachment or leakage at the base layer. Lap joints self-bond with the same durability as the roll material.
- Puncture and Tear Resistance: Polyester tire base fabric acts as the reinforcement layer, providing puncture resistance, slight fracture resistance, and high tear strength to protect upper and lower surfaces from damage.
- High Tensile Performance: Achieves tensile strength ≥ 350 N/50 mm and elongation ≥ 30 %, allowing the self adhesive waterproof membrane for roof to accommodate substrate shrinkage, deformation, and cracking.
- Durable Bond Life: Maintains long-term adhesion without water channeling under the membrane or separation at overlaps.
- Broad Temperature Tolerance: Resists flow up to 70 °C and cracking down to -20 °C, making the self-adhered waterproofing membrane reliable across varied climate conditions.
| No. | Item | Indicator | ||
|---|---|---|---|---|
| Ⅰ | Ⅱ | |||
| 1 | Soluble content/(g/㎡) ≥ | 2.0mm | 1300 | - |
| 3.0mm | 2100 | |||
| 4.0mm | 2900 | |||
| 2 | Tensile property | Pulling force/(N/50mm) ≥（2.0mm） | 350 | - |
| 3.0mm | 450 | 600 | ||
| 4.0mm | 450 | 800 | ||
| Elongation at maximum tension/% ≥ | 30 | 40 | ||
| 3 | Heat resistance | 70 °C without sliding, flowing, or dripping | ||
| 4 | Low temperature flexibility/°C | -20 | -30 | |
| No cracks | ||||
| 5 | Impermeability | 0.3 MPa, impermeable for 120 minutes | ||
Application Range
The JY-ZPU self-adhesive waterproof membrane is designed for non-exposed roofing systems and below-grade waterproofing projects. It is applied on concealed flat roofs, underground structures, open-cut subways, tunnels, water tanks, and drainage channels. This self adhesive waterproof membrane for roof is particularly effective in environments where open-flame installation is prohibited. Its enhanced low-temperature flexibility allows reliable performance in cold climates, while the self-adhered waterproofing membrane ensures secure, torch-free bonding across all listed substrates.
Installation Method for JY-ZPU Self-Adhered Membrane
Construction Process Grassroots treatment → Additional layer construction → Self-adhesive surface construction → Exhaust compaction → Closed water test → Construction of protective layer
Key Installation Steps
- Substrate Preparation: Clean the surface thoroughly. The substrate must be solid, flat, and free of debris. Apply base treatment agent evenly with no exposed areas or missed spots. Allow the surface to dry completely before laying the self-adhesive waterproof membrane.
- Detail Reinforcement: Treat internal and external corners, pipe penetrations, eaves, gutters, and deformation joints with additional layers. Pre-cut rolls to the required size and shape. Use heating equipment to assist adhesion on complex details where the self adhesive waterproof membrane for roof is difficult to bond.
- Main Layer Application: After the primer has dried, mark alignment lines. Unroll the material promptly, starting by securing the leading end. Gradually unfold the roll while peeling away the isolation film and pressing it firmly along the reference line to ensure full contact.
- Air Removal and Compaction: Roll out trapped air using a soft brush or roller to achieve complete adhesion.
- Water Tightness Test: Perform a closed water test as specified in the project plan.
- Protective Layer: Install a protective covering over the finished self-adhered waterproofing membrane surface to shield it from mechanical damage.
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JY-ZPU Self-Adhered Membrane vs. TPO Membranes
Composition and Structure The JY-ZPU is a self-adhesive polymer modified asphalt membrane with petroleum asphalt as the base, SBS/SBR modifiers, polyester tire fabric reinforcement, and peelable silicon-coated films on both sides for protected self-adhered application. TPO (thermoplastic polyolefin) is a single-ply sheet of polypropylene and ethylene-propylene rubber, typically reinforced with polyester scrim and heat-welded at seams; no asphalt or adhesive layer is factory-applied.
Installation JY-ZPU installs via peel-and-stick on prepared substrates—no torches or kettles required—making it a true self-adhesive waterproof membrane suited for detail work and cold-weather jobs down to 5 °C. TPO requires mechanical fastening or full adhesion with separate contact adhesives, followed by hot-air welding of overlaps; installation stops below 0 °C without special primers.
Performance Characteristics
- UV & Heat Aging: TPO resists UV and maintains flexibility above 120 °C; JY-ZPU, protected by surfacing or overburden, relies on the asphalt compound and is not UV-stable when exposed.
- Puncture & Tear: Polyester tire fabric in JY-ZPU delivers higher tear strength in buried or ballasted systems; TPO’s scrim offers balanced resistance but can split at welds if overheated.
- Chemical Resistance: TPO handles ponded water and mild chemicals; asphalt-based JY-ZPU may soften with hydrocarbons or oils.
- Elongation & Recovery: SBS/SBR modification gives JY-ZPU >300 % elongation for bridging cracks; TPO typically ranges 25–35 %.
Applications JY-ZPU functions as a self adhesive waterproof membrane for roof details, plaza decks, and below-grade walls where immediate adhesion and minimal equipment are priorities. TPO serves large open roofs needing long-term UV exposure and heat-welded seam integrity.
Cost & Lifecycle JY-ZPU material cost runs 15–25 % lower than 60-mil TPO; installed system price narrows when TPO requires fasteners and welding labor. Expected service life for covered JY-ZPU reaches 20+ years; exposed TPO warranties extend to 30 years with proper maintenance.
In summary, choose the JY-ZPU self-adhered waterproofing membrane for concealed, adhesive-critical projects; select TPO for expansive, fully exposed roofing demanding welded seams and UV stability.
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Common Faults and Troubleshooting for JY-ZPU Self-Adhered Membrane
| Fault | Cause | Remedy |
|---|---|---|
| Blistering or air pockets under the membrane | Trapped moisture in substrate; primer not fully dry; air entrapped during rolling. | Ensure substrate is bone-dry before applying primer. Wait full drying time. Peel back affected area, re-prime, re-lay the self-adhesive waterproof membrane while pressing out air with a roller. |
| Wrinkles or fish-mouths at overlaps | Uneven substrate; material stretched during unrolling; insufficient pressure at edges. | Level substrate first. Unroll without tension. Re-heat edges with hot-air gun (max 200 °C) and press firmly with roller to seal the self adhesive waterproof membrane for roof overlap. |
| Poor adhesion at edges or details | Contamination (dust, oil); cold substrate below 5 °C; isolation film removed too early. | Clean surface with solvent wipe. Warm substrate and membrane slightly if below 10 °C. Remove release film only when ready to bond. Use primer on concrete; apply extra pressure at corners. |
| Membrane tears during installation | Sharp debris on substrate; excessive pulling force; low temperature brittleness. | Sweep and vacuum substrate. Cut membrane with sharp knife instead of tearing. Warm rolls in cold weather before use. Patch tears with same material, extending 150 mm beyond damage. |
| Leakage at lap joints after water test | Insufficient overlap (<80 mm); dirt in lap; no exhaust rolling. | Minimum 80 mm side lap, 100 mm end lap. Clean laps before bonding. Re-roll entire lap with heavy roller. If failed, inject low-viscosity asphalt sealant or overlay with new strip. |
| Delamination from substrate over time | Substrate movement; water under membrane; UV exposure (non-covered roof). | Verify substrate stability. Ensure full contact—no voids. Install protective layer immediately after closed water test. For exposed areas, cover with ballast or coating; the self-adhered waterproofing membrane is not UV-stable long-term. |
Preventive Notes
- Store rolls upright in dry area, 5–35 °C.
- Do not install in rain or on wet surfaces.
- Conduct 24-hour closed water test on 100 % of roof area before protective layer.
Waterproofing Membrane Material Types Comparison
| Membrane Type | Core Material | Installation Method | Typical Thickness | Service Life (Covered) | Cost (Material Only) | Key Strengths | Key Limitations |
|---|---|---|---|---|---|---|---|
| JY-ZPU Self-Adhered Polymer Modified Asphalt | Petroleum asphalt + SBS/SBR, polyester tire fabric, peel-and-stick adhesive | Peel-and-stick (no torch, no kettle) | 1.5–2.0 mm | 20–25 years | $1.10–$1.40 / sq ft | Instant bond; cold-applied; excellent elongation (>300 %); conforms to details | Not UV-stable (must be covered); sensitive to hydrocarbons; heavier rolls |
| TPO (Thermoplastic Polyolefin) | Polypropylene + EPR, polyester scrim | Heat-welded seams; mechanically fastened or fully adhered | 45–80 mil (1.1–2.0 mm) | 25–35 years | $1.30–$1.80 / sq ft | UV-resistant; heat-welded seams; lightweight; energy-efficient (white) | Requires skilled welding; lower elongation (~25 %); seams can fail if overheated |
| PVC (Polyvinyl Chloride) | PVC resin + plasticizers, polyester scrim | Heat-welded or solvent-welded; mechanically fastened or adhered | 50–80 mil | 20–30 years | $1.40–$1.90 / sq ft | UV & chemical resistant; flexible; proven track record | Plasticizer migration over time; not compatible with asphalt; higher VOC during welding |
| EPDM (Ethylene Propylene Diene Monomer) | Synthetic rubber, carbon black or scrim-reinforced | Fully adhered (contact adhesive), mechanically fastened, or ballasted | 45–60 mil | 25–40 years | $1.20–$1.60 / sq ft | Excellent UV & ozone resistance; high elongation (>400 %); long warranties | Seams require tape or liquid adhesive; black absorbs heat; heavy rolls |
| HDPE (High-Density Polyethylene) | Virgin or recycled HDPE geomembrane | Loose-laid + welding or tape seaming; typically below-grade | 1.0–2.0 mm | 30+ years | $0.90–$1.30 / sq ft | Extreme chemical resistance; puncture-resistant; low permeability | No adhesion to substrate; requires protection layer; not for roofs |
| Bituminous Torch-Applied (SBS/APP) | Asphalt + SBS or APP polymers, polyester/glass mat | Torch or hot asphalt | 3–4 mm | 15–25 years | $0.95–$1.35 / sq ft | Proven in buried applications; high thickness build-up | Open flame risk; odor; not for occupied buildings; temperature-sensitive install |
Selection Guide
- Choose JY-ZPU self-adhesive waterproof membrane for non-exposed roofs, tunnels, and plazas needing fast, flame-free installation and high crack-bridging.
- Choose TPO or PVC for large exposed commercial roofs requiring long-term UV stability and heat-welded seam integrity.
- Choose EPDM for low-slope ballasted or fully adhered roofs with minimal seams.
- Choose HDPE for geomembrane liners in ponds, landfills, or secondary containment.
- Choose torch-applied only where fire codes allow and labor is experienced.
All systems require proper substrate prep, drainage design, and protective overburden for maximum lifespan.
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Customer Reviews
Mark Thompson – Contractor, Toronto, Canada “We used the JY-ZPU self-adhesive waterproof membrane on a 12,000 sq ft underground parking garage retrofit. The peel-and-stick application saved us from torching in a confined space, and the material stayed flexible at -8 °C. Lap adhesion held during the 48-hour flood test with no leaks. Solid product for cold-climate below-grade work.”
Elena Ruiz – Project Supervisor, Madrid, Spain “Installed this self adhesive waterproof membrane for roof details on a non-exposed terrace above an office block. The polyester tire fabric gave decent tear resistance when workers walked on it before ballast. Primer dried in 45 minutes at 18 °C; rolls unrolled without stretching. No issues after two rainy seasons.”
Hiroshi Nakamura – Roofing Foreman, Osaka, Japan “Applied the self-adhered waterproofing membrane on a subway station entrance ramp. The 80 mm side laps sealed tight with just roller pressure—no extra sealant needed. Substrate was damp concrete; we waited for the primer to flash off completely and had zero blisters. Meets our spec for flame-free zones.”
Sarah Patel – Maintenance Manager, Dubai, UAE “Specified it for planter boxes on a podium deck. The membrane handled 45 °C surface temps without flow once the geotextile protection was down. Cut pieces around drains stuck firmly after light heating with a heat gun. Water ponding test passed; plants installed the next day. Does the job in hot conditions.”
About Great Ocean Waterproof Technology Co., Ltd.
Great Ocean Waterproof Technology Co., Ltd. (formerly Weifang Great Ocean New Waterproof Materials Co., Ltd.) is headquartered in Taitou Town, Shouguang City—the heart of China’s largest waterproofing materials production base. Established in 1999, the company operates as a high-tech enterprise integrating research, manufacturing, and sales of waterproofing systems.
The 26,000 m² factory complex houses multiple advanced production lines for roll membranes, sheet materials, and coatings. Key products include polyethylene-propylene (polyester) polymer waterproofing membranes, PVC membranes, TPO membranes, CPE membranes for high-speed rail, self-adhesive polymer membranes, pre-applied reactive polymer membranes, cross-laminated high-bond membranes, drainage boards, SBS/APP modified bitumen membranes, asphalt-based self-adhesive membranes, root-resistant polymer and bitumen membranes, single- and dual-component polyurethane coatings, JS polymer-cement coatings, JY-951 waterborne polyurethane waterproof coating, cementitious crystalline penetration sealers, spray-applied rubberized asphalt, non-curing rubber asphalt coatings, and various ancillary tapes and adhesives.
Supported by a dedicated technical team and fully equipped testing laboratories, the company maintains consistent quality control. Certifications include national “Total Quality Management Compliance” from the Ministry of Agriculture, ISO quality system accreditation, “Nationally Certified Quality Product” status from the China Quality Inspection Association, Shandong Province industrial product registration, and production licenses.
Great Ocean upholds contract integrity and supplies reliable materials to over 20 provinces in China and multiple overseas markets. Guided by the principles of integrity, practicality, and innovation, the company pursues mutual growth with partners through cost-effective solutions and responsive service.
