Roof tank leak detection for residential buildings in Al Shfa, Riyadh

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Before we start: what we know about Al Shfa

The centre of Al Shfa is at 24.5631, 46.6967, about 16.9 km from the centre of Riyadh, with an approximate radius of 1.2 km. The service-area circle on the map below is drawn from this point. The centre of Al Shfa sits about 617 m above sea level (SRTM open elevation data).

The nearest wadi channel is about 1.5 km from the centre of Al Shfa (OpenStreetMap). Main roads in or near Al Shfa: Ibn Taymiyyah Street, Dirab Road.

Al Shfa sits at 24.5631, 46.6967, about 16.9 km from the centre of Riyadh, with an approximate radius of 1.2 km. That compact footprint and its closeness to the city mean many residential buildings here are served by similar supply routes and similar rooftop storage arrangements, so a leak check can be planned around a small, familiar set of building types rather than a wide spread of districts. Because the area is compact, technicians can often schedule several buildings in a single visit route, which keeps the inspection focused and easy to coordinate with building managers.

The centre of Al Shfa sits about 617 m above sea level, according to SRTM open elevation data. At that height, rooftop tanks are exposed to strong daytime heating and wide temperature swings between day and night. That expansion and contraction stresses seams, fittings and the tank body itself, so the practical effect on the service is that inspections pay close attention to joints, overflow pipes and float valves, where thermal movement tends to show first. The nearest wadi channel is about 1.5 km from the centre of Al Shfa, according to OpenStreetMap. Wadi channels can carry dust and sediment during rain, and that sediment settles on rooftops and can block drains and tank vents. Inspectors therefore check vents and roof drainage around the tank, not only the tank walls, because a blocked vent can hide a leak or cause overflow that looks like a leak.

Owners in Al Shfa often make a few avoidable mistakes. They wait for a visible puddle before calling anyone, when a slow seep at a fitting may have been running for a long time. They treat a tank repair as finished once the surface looks dry, without checking whether the internal coating has lost adhesion. They also overlook the coating cost when planning, which can run from SAR 25–70 per m², depending on the scope, so a fuller estimate avoids surprises. Finally, many owners skip the simple habit of cleaning roof drains and vents after dusty periods. Regular checks of these points keep small problems from becoming full tank replacements.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

Signs worth paying attention to

If you notice one of these signs in Al Shfa, it is a good moment to talk to the team:

• Water on the roof around the tank base
• A stain on the top-floor ceiling
• Repeated spills from the overflow outlet

Causes we see in the field

• A fibreglass or polyethylene tank cracking in the sun.
• Inlet and outlet connections — we check this before anything else.
• A worn float valve — we check this before anything else.

Tools we use in Al Shfa

How the work is done, step by step

1. Inspecting the base and connections: We look at where water gathers and trace it back.
2. Level test: The level is recorded with filling stopped.
3. Float and overflow check: We confirm whether water is escaping through the overflow rather than the tank body.
4. Recommendation: Repair of the connection, the float or the tank, stated in writing.

Al Shfa in facts and sources

Questions from Al Shfa

What we advise against

• Mistaking a float overflow for a leak in the tank body

What you get after the work

You receive: the source of the water identified: tank body, connections or float valve, in a technical report with a verification code.