Water tank waterproofing in Alrass: for companies (annual contract)

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

Why water tank waterproofing differs in Alrass

Team note on Alrass: 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.. The centre of Alrass sits about 695 m above sea level (SRTM open elevation data).

Main roads in or near Alrass: King Abdulaziz Road, King Fahd Road, King Salman Road.

Consider a company that runs a small office or light-industrial site in Alrass and relies on a rooftop or ground-level water tank to keep operations running. The owner usually notices a problem only when a stain appears on a ceiling, a pump starts running more often, or a staff member reports a damp smell near the storage room. By then, water has often been seeping into the tank walls or the slab for some time. For a business, the cost is not only the repair itself but also lost use of the space and the disruption of daily work.

The local setting matters. The centre of Alrass sits about 695 m above sea level, which places the town on a plateau in the Qassim region. Owners here should plan for a site that is not at the bottom of a valley, so water pressure and tank position need to be checked against the building's actual height rather than assumed from neighbouring plots. Since the ground and the tank are exposed to the same local conditions as the rest of the site, a waterproofing scope should cover the tank walls, floor and roof together rather than patching a single visible crack.

A sensible sequence for a company owner starts with a documented inspection of the tank, the roof slab and any adjoining basement or bathroom areas. Next, list every area that needs treatment and measure it in square metres or linear metres, because the scope is priced per m², per metre of crack, or per m² of coating. Then choose the systems that fit each area: tank internal coating for the tank, liquid roof waterproofing or bitumen membrane for the roof, epoxy coating or crack injection where cracks appear, and XPS boards where insulation is also needed. Compare written quotes against the published ranges for each item so the figures are clear before work begins. Finally, arrange a follow-up check after the works are complete and keep the report on file for the next annual review.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

Signs that call for water tank waterproofing

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

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

Causes we see in the field

• Construction joints.
• Damaged old coating.
• A common cause: cracks in the walls or floor.

How we choose the tool in Alrass

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.

Facts and costs — Alrass

Questions from Alrass

Mistakes that cost more

• Using a material that is not intended for drinking water

The written outputs

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