5-Layer Waterproofing System (5WP)
The 5-Layer Waterproofing System (5WP) provides maximum protection for exposed concrete surfaces such as roof tops, deck areas, car porches, podiums, planter boxes, water features, concrete balconies, and walls.
What is the 5-Layer Waterproofing System?
The 5-layer Waterproofing System (5WP) refers to a multi-layer waterproofing method used primarily for exposed concrete surfaces like rooftops, balconies, planter boxes, and walls.
It is a non-invasive and durable solution that combines multiple coatings and reinforcement to seal cracks, prevent water ingress, and withstand Singapore's hot and wet climate.
Breakdown of the 5 Layers
| Layer | Description | Purpose |
|---|---|---|
| 1. Surface Preparation | Cleaning, crack patching, and leveling | Ensures proper bonding of waterproofing materials |
| 2. Primer Coat | Usually a liquid primer (cementitious, PU, or epoxy) | Promotes adhesion of waterproofing layers |
| 3. First Waterproofing Coat | A liquid membrane (PU, acrylic, cementitious, or bitumen-based) | First waterproofing barrier |
| 4. Reinforcement Layer | Embedding fiberglass mesh or scrim | Adds flexibility, tensile strength, and crack-bridging ability |
| 5. Second Waterproofing Topcoat | Final protective coat (UV-resistant, algae-resistant) | Ensures long-term durability and weather protection |
Curing Time Information
The standard curing time for 5WP is 3-4 hours, but highly dependent on weather. The hotter and drier the weather, the faster curing time.
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