Water tank waterproofing for restaurants in Zhra Lbn, Riyadh

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

What is specific about Zhra Lbn for water tank waterproofing

The centre of Zhra Lbn is at 24.6329, 46.5531, about 15.3 km from the centre of Riyadh, with an approximate radius of 8 km. The approximate area shown on the map is centred here. The nearest wadi channel is about 1.8 km from the centre of Zhra Lbn (OpenStreetMap).

The centre of Zhra Lbn sits about 747 m above sea level (SRTM open elevation data). Main roads in or near Zhra Lbn: Western Ring Road, Najd Road, Taif.

Picture a restaurant owner in Zhra Lbn who runs a busy kitchen and needs a dependable water supply for cooking, washing and cleaning. Water is stored in a rooftop or ground-level tank, and any leak quickly becomes a hygiene problem, a loss of stock and a disruption to service. Before the lunch rush, the owner wants to know that the tank will hold water cleanly and that the building will not suffer damp or staining below.

The local facts matter here. Zhra Lbn's centre sits at 24.6329, 46.5531, about 15.3 km from the centre of Riyadh, within an approximate radius of 8 km, so the area is a distinct residential and commercial district rather than a city-centre site. It lies about 747 m above sea level, and the nearest wadi channel is roughly 1.8 km from the centre. Wadi proximity means that heavy rain can run off quickly and load the building's exterior surfaces, so roof drainage, wall junctions and any below-ground spaces need closer attention than a sheltered site would require. For a restaurant, a small seepage problem can spread into storage rooms and kitchen floors faster than the owner expects.

A practical sequence helps. First, have the tank inspected and its interior cleaned, then mark every crack and joint that shows damage. Second, decide the coating for the tank interior, which typically falls in the range of SAR 25–65 per m², and treat the roof separately with liquid roof waterproofing at SAR 10–25 per m² or a bitumen membrane at SAR 15–35 per m². Third, repair any cracks by crack injection, priced at SAR 40–125 per metre, before the surface coatings go on. Fourth, if the restaurant has a basement or sunken storage, budget for basement waterproofing at SAR 55–160 per m², and check bathroom and kitchen wet areas at SAR 15–40 per m². Finally, schedule the work outside service hours so that the kitchen can keep operating.

For restaurants, visits are planned outside service hours and recorded for the premises file.

Signs worth paying attention to

The following signs are worth checking before they grow:

• Deposits and flaking inside the tank
• A tank that leaks after testing
• Unusual colour or taste in the water

Causes we see in the field

• Cracks in the walls or floor.
• Damaged old coating.
• Construction joints — we check this before anything else.

Tools and methods, and when we use them

The steps in order

1. Emptying and ventilation: The tank is emptied and ventilated before entry.
2. Cleaning and preparation: Loose material is removed down to a sound surface.
3. Crack treatment: Active cracks are treated first.
4. Coating layers: A material intended for drinking-water tanks is applied.
5. Disinfection and fill test: The tank is disinfected and the level is monitored after filling.

Zhra Lbn in facts and sources

Short answers for Zhra Lbn

Mistakes that cost more

• Using a material that is not intended for drinking water

What you get after the work

You receive: the material name, its batch number and the fill-test result, in a technical report with a verification code.