Valley & Skylight Waterproofing in Kameeldrift, Pretoria

Location: Kameeldrift, Pretoria
Service: Valley and skylight waterproofing (StretchSeal system)

When a metal roof starts leaking, the failure almost never happens in the middle of a sheet. It happens at the details — the valleys where two roof planes meet, and the openings cut around skylights and vents. This home in Kameeldrift, Pretoria, was showing exactly that pattern: water was tracking in at the roof detail points and coming through inside the house. Eco Seal Coating Specialists was called out to trace the leaks and handle the roof repairs and waterproofing properly.

The problem

A close inspection of the roof told the whole story. The main valley between the two roof planes had an old, brittle sealing bed that was cracked right through, dirty, and streaked with rust where water had been sitting and running for a long time. Along the metal seams the coating had broken down and corrosion had started to creep in.

The round skylight was no better. The metal ring around the dome had rusted, and the mortar bed holding it in place was cracked and open — a direct path for rainwater to get under the skylight and into the roof structure. Inside the house the damage had already shown up: paint was blistering and lifting on the interior wall below, the tell-tale sign of a persistent roof leak.

The Eco Seal solution

As an approved SealPro applicator, Eco Seal treats the roof detail as a proper waterproofing system, not a quick smear of sealant. The work followed a set sequence:

1. Cleaned and prepared the valley, seams and skylight surround, removing loose old coating, dirt and rust so the new system could bond.
2. Treated the bare and corroded metal with Purple Prime to stop rust and give a sound base.
3. Reinforced the cracked valley and the skylight junction with Flex embedded with StretchSeal, bridging the cracks and moving joints so they can flex without splitting again.
4. Rebuilt the seal around the skylight ring, closing the open mortar bed and locking the dome back down watertight.
5. Finished the valley and skylight surround with a HydroSeal HF topcoat for a durable, weather-resistant waterproof membrane.

The result

The valley and skylight are now fully sealed with a continuous, flexible membrane instead of a cracked, rusted bed. The skylight sits clean and watertight in a neat re-coated surround, and the roof detail points that were letting water in are closed off. With the source of the leak stopped, the interior can be repaired knowing it will stay dry through the next rainy season. If your metal roof is leaking at the valleys, skylights or seams, a proper detail-level system solves it at the source — the kind of targeted roof waterproofing Eco Seal specialises in.

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

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