Roof Slab Waterproofing in Brits

Location: Brits, North West
Service: Concrete roof slab maintenance and waterproofing (ArmTec system)

A flat concrete roof slab is only as good as the membrane protecting it. On this home in Brits, that membrane had reached the end of its life. The old coating had gone brittle and red, ponding water sat around the outlets, and moisture was starting to work its way into the structure below. The owner called Eco Seal for professional concrete slab waterproofing to strip the failing system back and rebuild it properly.

The problem

Years of sun and weather had taken their toll on the existing waterproofing. The coating had delaminated and cracked across the slab, lifting away from the substrate in sheets that could be peeled off by hand. Where the old membrane had let go, water had nowhere to go but down into the concrete.

The drainage made things worse. The roof outlets sat too high and had silted up, so rainwater puddled in front of them instead of draining away. Standing water is the enemy of any flat roof, and here it was pooling exactly where the waterproofing had already failed. Left alone, this combination leads to internal damp, blistering and long-term damage to the slab itself.

The Eco Seal solution

As an approved SealPro applicator, Eco Seal installed the ArmTec HyperFlex waterproofing system, a reinforced build designed for flat concrete slabs that flex and move with temperature.

1. Strip and prepare. The old delaminated coating was removed and the full 49 m² slab was cleaned back to a sound, stable surface, then primed with Penetrar to lock in the substrate.
2. Correct the drainage. The blocked outlets were opened up and reset so water flows to the drains instead of ponding on the slab.
3. Reinforce the weak points. Cracks, joints and the roof flashings were strengthened with Flex and StretchSeal membrane, sealing the areas most likely to move and split again.
4. Build the reinforced membrane. HyperFlex was applied and embedded with ArmTec mesh across the slab, creating a tough, flexible layer that bridges hairline movement.
5. Seal and finish. The whole roof was topcoated with HydroSeal HF, leaving a seamless, UV-stable grey membrane that sheds water and stands up to the sun.

The result

The slab now carries a clean, continuous waterproof membrane from parapet to parapet, with the outlets draining as they should. No more peeling coating, no more standing water, and no more moisture finding its way into the structure. The finished surface is neat, hard-wearing and backed by Eco Seal’s workmanship guarantee, giving the owner a roof that is ready for many more seasons of Brits weather — the same flat roof waterproofing we install across Gauteng and North West.

Contact Eco Seal for a free inspection and quote: 083 309 8164 · www.ecoseal.co.za

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