Tile Roof Ridge & Valley Waterproofing in Alberton

Location: Alberton, Gauteng
Service: Tile Roof Ridge & Valley Waterproofing

A tiled roof on a residential home was showing its age at exactly the points where roofs fail first — the ridges and the valleys. SealAll Roof Contractors was called in to rake out, refill, waterproof and colour-match 45 linear metres of cracked ridge caps, clear and reseal the valley sections, and waterproof the flashings and screw lines on an adjoining sheeted roof area.

The problem

On inspection, the ridge cement running along the top of the tiled roof was cracked and missing in multiple sections, leaving open joints along almost the entire ridge line. Gaps like this are one of the most common entry points for water on a tiled roof — rain tracks straight along the ridge and into the roof structure below instead of running off. The valley sections, where two roof planes meet, were blocked with debris and had loose tiles, another classic weak point that lets water pool and force its way under the tile courses. Nearby, the flashings and screw lines on a section of sheeted roofing also needed attention, with exposed screw heads and open flashing joints creating further paths for leaks.

The solution

SealAll Roof Contractors, an approved SealPro applicator, worked through the full ridge line, the valleys and the sheeted section systematically:

1. Rake out and re-fill the ridges — All 45 linear metres of cracked ridge cement were raked out back to a sound base and re-filled with fresh fibre cement to close the open joints.
2. Prime the substrate — Each repaired ridge section was primed so the waterproofing membrane would bond correctly and last.
3. Waterproof with the SealPro Stretch Seal system — The ridges were reinforced and sealed using SealPro’s Stretch Seal ridge system, a flexible membrane that moves with the roof under thermal expansion instead of cracking again.
4. Colour code the ridges — Once sealed, the ridge caps were colour coded to blend back in with the surrounding roof tiles for a neat, uniform finish.
5. Clear and reseal the valleys — The blocked valley sections were cleared of debris, filled with fibre cement where needed, primed and waterproofed with the same Stretch Seal system to restore free water flow off the roof.
6. Seal the flashings and screw lines — On the adjoining sheeted roof section, all exposed flashing joints and screw lines were waterproofed to shut down the secondary leak points, with the gutter-line sheeting trimmed and flutes closed for a clean, weathertight edge.

The result

The ridges and valleys that were once cracked and open are now fully sealed, reinforced and colour-matched into the roof, closing off the paths where water was getting in. With the flashings and screw lines on the sheeted section also waterproofed, the homeowner now has a roof that’s protected at every joint — not just patched at the surface — giving lasting peace of mind ahead of the next rainy season.

This kind of ridge and valley failure shows up on tiled roofs across the region, and it’s exactly what the SealPro Stretch Seal system is built to solve permanently rather than patch temporarily. SealAll Roof Contractors is an approved SealPro applicator serving Vereeniging, Alberton and the greater Vaal region.

Related SealAll Roof Contractors services: weatherproof roof tiles · roof waterproofing · roof coating and painting across the Vaal Triangle.

Contact SealAll Roof Contractors for a free inspection and quote: 072 694 9243 · roofcontractors.co.za

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