Tile Roof Ridge Waterproofing & Repaint in Fourways
Location: Fourways, Johannesburg
Service: Tile roof ridge waterproofing and full roof repainting
Body corporates managing large tiled-roof complexes often run into the same failure pattern: after years of sun exposure and seasonal storms, the mortar bedding under the ridge caps begins to crumble. In one recent complex-wide project, the concrete ridge caps had cracked and shed their filling across almost every roof, leaving open joints where rain could track straight into the ceilings below. The body corporate needed a durable, guaranteed fix across the entire complex — not another quick patch.
The problem
The tiled roofs looked tired, but the real danger was hidden in the ridge lines. The original mortar bedding under the ridge caps had crumbled, and many of the concrete ridge tiles were cracked clean through or missing sections of their pointing entirely. Every one of those gaps is a direct path for wind-driven rain. On top of that, the garage roofs were clad in IBR steel sheeting that had begun to rust along the sheets and screw lines. Left untreated, the tile roofs would keep leaking and the metal roofs would keep corroding until far more expensive repairs became unavoidable.
The solution
As an approved SealPro applicator, the ridge waterproofing and repainting system was carried out across the complex in five stages:
- Rake and refill the ridges – Over 1 100 metres of ridge line were raked out to remove loose, failed cement, then re-filled with a fibre-cement mix to rebuild a sound bed.
- Prime the substrate – Every prepared ridge was cleaned and primed with Penetrar so the waterproofing layer could bond permanently to the concrete.
- Apply the StretchSeal system – A flexible StretchSeal membrane was embedded over each ridge, sealing every joint and crack against moisture ingress and allowing for natural roof movement.
- Treat and repaint the metal roofs – The rusted IBR garage sheeting was rust-converted, primed, and had its joints and screw lines waterproofed before two coats of high-quality roof paint were applied.
- Overcoat and finish – The entire tile roof and all sealed ridges received two coats of premium roof paint in a uniform colour, protecting the waterproofing and restoring a clean, consistent finish.
The result
The complex now has watertight ridges and a crisp, uniform finish across every roof. The rusted garage sheeting has been stopped in its tracks and repainted, and the ridge waterproofing carries a 10-year StretchSeal guarantee. The body corporate has swapped ongoing leak call-outs for a properly sealed, great-looking roof built to handle Highveld summers for years to come.
Prime Seal Spray is an approved SealPro applicator serving Fourways and the greater Johannesburg North area.
Related Prime Seal Spray services: roof waterproofing · roof painting · waterproofing & painting across Johannesburg North.
Contact Prime Seal Spray for a free inspection and quote: 064 879 3553 · primesealspray.co.za
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- CATEGORY Roof Painting , Tile Roof Waterproofing










