Water tank waterproofing for schools in Sakaka

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

What is specific about Sakaka for water tank waterproofing

The centre of Sakaka sits about 555 m above sea level (SRTM open elevation data). Team note on Sakaka: 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..

Sakaka sits about 555 m above sea level, so a school water tank here faces a different environment from coastal cities. At that elevation the air is typically drier, and daily temperature swings can be sharp, which makes surface cracking and coating movement worth checking before anything else. The first thing a technician looks at is the condition of the tank walls and floor, because a coating can only bond to a sound surface. Hairline cracks, loose render, and any area where water has been seeping are noted first, since they decide whether a crack injection is needed before the main coating goes on.

Several items are left to the site visit itself. The technician needs to see the tank's size, its access points, and whether it is an internal coating job, a roof job, or both, because the cost range depends on the surface and the amount of area involved. Tank internal coating is priced at SAR 25–60 per m², while liquid roof waterproofing sits at SAR 8–25 per m², so the choice of surface changes the estimate a great deal. Epoxy coating at SAR 35–90 per m² and spray foam at SAR 20–45 per m² are also considered on site, depending on the condition of the surface and how the water is stored. Crack injection, priced at SAR 40–120 per metre, is measured only once the cracks have actually been mapped.

Some information helps the technician prepare. It is useful to know when the tank was last drained, whether the school can empty it for the work, and what the water is used for, since drinking-water areas may need a different approach. A note of any past leaks, the age of the tank, and whether insulation boards such as XPS (SAR 12–30 per m²) were fitted before will speed up the assessment. Clear access to the roof and the tank interior, and a contact person at the school, will also keep the visit short and the quote accurate.

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

Signs that call for water tank waterproofing

If you notice one of these signs in Sakaka, 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

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

How we choose the tool in Sakaka

How the work is done, step by step

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.

Facts and costs — Sakaka

Short answers for Sakaka

Mistakes that cost more

• Using a material that is not intended for drinking water

What you get after the work

The written output: the material name, its batch number and the fill-test result. The report is numbered and can be checked with its verification code.