Tile Roof Ridge & Flashing Waterproofing in Erasmuskloof, Pretoria

Location: Erasmuskloof, Pretoria
Service: Tile roof ridge and parapet flashing waterproofing

When a concrete tile roof starts letting water in, the trouble almost never begins on the tiles themselves. It begins along the ridges, the hips and the parapet-wall flashings, where old mortar bedding cracks, shrinks and washes away. A homeowner in Erasmuskloof called Eco Seal out to exactly this problem: weathered ridge lines and parapet junctions on a large tile roof that were no longer keeping the weather out. As an approved SealPro applicator, Eco Seal was able to strip the failed detail back and rebuild it into a properly sealed, flexible tile roof waterproofing system.

The problem

Years of Pretoria sun, thermal movement and summer downpours had taken their toll on the roof’s critical waterproofing lines. The bedding mortar under the ridge and hip tiles had cracked and crumbled, and loose cement was breaking away in chunks. Along the parapet walls and the chimney flue, the old flashing had lifted and separated from the substrate, leaving open joints where water could track straight into the roof. Lichen and moss staining on the tiles showed just how long moisture had been sitting where it should not. Left unattended, these are the exact failure points that lead to ceiling stains, damp and rot inside the home.

The Eco Seal solution

Eco Seal treated the ridges, hips, parapet flashings and the chimney junction as one continuous tile roof waterproofing system, rebuilt from the substrate up:

1. Rake out and clean — all loose, cracked and hollow bedding cement was raked out of the ridges and parapet joints, and the surfaces were cleaned back to sound substrate.
2. Re-bed and fill — the ridge and hip tiles were re-bedded and the open joints filled with fibre-reinforced cement, restoring a solid, stable base along every line.
3. Prime the substrate — every prepared surface was primed with SealPro Penetrar to lock down the substrate and give the waterproofing layer a strong bond.
4. Reinforce and waterproof — the ridges, flashings and chimney junction were waterproofed with the SealPro StretchSeal system, a flexible membrane-reinforced coating that bridges hairline cracks and absorbs the roof’s natural movement without splitting.
5. Seal and colour code — the completed detail was finished and colour coded to match the existing roof tiles, so the repair reads as a clean, uniform roof rather than a patch.

The result

The roof now has a continuous, flexible waterproof seal running along every ridge, hip and parapet junction, with the vulnerable chimney base fully rebuilt and sealed. The finished lines are watertight, colour-matched to the tiles and built to move with the roof through Pretoria’s heat and rain. The homeowner is protected against the leaks that were about to start showing up on the ceilings below, and the roof looks tidy and well cared for from every angle — the same approach we bring to all our roof repairs and waterproofing.

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

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