2500㎡ Roof Waterproofing Renovation with Spray Polyurea PS500A
2500㎡ aging roof waterproofing project using self-developed PS500A spray polyurea. Fast curing, -40°C~150°C temperature resistance, seamless & zero VOC, 20+ year durable roof waterproof solution.
Project Background
The client suffered severe leakage on a 2,500㎡ aging roof. After professional evaluation, our self-developed spray polyurea PS500A was selected as the high-efficiency, long-lasting waterproofing solution to solve the roof leakage issue.
Project Challenges
- ・Large-area construction: The 2,500㎡ roof made traditional weather-dependent waterproofing methods inefficient and time-consuming.
- ・Defective substrate: Existing roof cracks and spalling required integrated repair and waterproofing treatment.
- ・High durability requirements: The project demanded -40°C to 150°C temperature resistance and a 20+ year service lifespan.
Core Solution: PS500A Spray Polyurea
High-performance polyurea material customized for heavy-duty roof waterproofing, with key advantages:
- ・Seamless elastic membrane: Bridges cracks and adapts to structural movement for durable waterproofing.
- ・Fast curing: Walkable within 2 hours, cutting project downtime by 50%.
- ・Extreme resistance: Features excellent UV and chemical resistance for harsh climates.
- ・Eco-friendly: Zero VOC, 100% solid content, compliant with green building standards.
Construction Process
- ・Surface Preparation: Clean debris, repair cracks and level the substrate.
- ・Primer Application: Improve adhesion between the base and polyurea layer.
- ・High-pressure Spraying: Apply uniform 1.5mm-thick polyurea membrane.
- ・Quality Inspection: Passed 48-hour full water immersion test with zero leakage.
Project Results
- ・Efficient delivery: Completed the full 2,500㎡ project in 3 days (50% faster than traditional solutions).
- ・Perfect waterproofing performance: Zero leakage during heavy rainfall after completion.
- ・Cost-effective: Low maintenance requirements reduce long-term operational costs.
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