Water tank waterproofing for schools in Baqiq

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

Water tank waterproofing in Baqiq: the local context

The centre of Baqiq sits about 83 m above sea level (SRTM open elevation data). Main roads in or near Baqiq: King Fahd Road.

Team note on Baqiq: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins..

A school principal in Baqiq usually inherits an older campus with a rooftop or ground-level water tank that has been in use for years. The tank may be fed by a municipal line or a private supply, and the staff expect clean water at every tap. Over time the concrete walls and joints can start to leak, and the leak is often hidden until staining or damp smell appears in the nearby rooms. Planning a repair before the problem spreads keeps the school running and avoids disruption during term time.

The centre of Baqiq sits about 83 m above sea level, according to SRTM open elevation data. For a school owner, this height means the site is not a low-lying basin where water collects from every direction, but it still needs careful attention to how water moves across the roof and into the tank. A tank that sits on a raised section of the building is exposed to sun, heat and wind, which dry and crack the coating faster than in shaded areas. Because the elevation is moderate rather than extreme, the main concern is the condition of the tank itself and the surfaces that hold water, not dramatic flooding.

Start by inspecting the tank and its roof, walls and joints, and mark every crack or damp patch. Clean and dry the surfaces, then fill the cracks; crack injection is priced at SAR 40–120 per metre, so measure each run before you order. For the inside of the tank, a tank internal coating costs SAR 25–60 per m², and an epoxy coating costs SAR 35–90 per m² where a harder finish is needed. Next, treat the roof: liquid roof waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m² are common choices, and XPS boards at SAR 12–30 per m² can add insulation where the tank sits on a slab. Finally, test the tank with water before refilling it for pupils and staff, and record the date for the next inspection.

For schools, the larger jobs are planned for weekends and holidays.

Signs worth paying attention to

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

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

The most common causes

• A common cause: damaged old coating.
• A common cause: cracks in the walls or floor.
• Construction joints — we check this before anything else.

How we choose the tool in Baqiq

From the first visit to the report

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.

Baqiq in facts and sources

Common questions about water tank waterproofing in Baqiq

Mistakes that cost more

• Using a material that is not intended for drinking water

What you receive

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