Water tank waterproofing for clinics in Ahad Almasarihah

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

Water tank waterproofing in Ahad Almasarihah: the local context

The centre of Ahad Almasarihah sits about 667 m above sea level (SRTM open elevation data). Team note on Ahad Almasarihah: 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..

Picture a clinic owner in Ahad Almasarihah who has just opened a small medical centre. The building has a rooftop water tank that feeds handwashing sinks, treatment rooms and the sterilisation area, and the owner has noticed damp patches on a ceiling below the tank and a faint smell in the storage room. For a clinic, these are more than cosmetic problems: water that seeps through concrete can stain finishes, damage equipment and create conditions that a health facility cannot tolerate. The owner wants the tank and its surroundings sealed properly, without disrupting patient care longer than necessary.

The Ahad Almasarihah centre sits at roughly 667 m above sea level, which matters for planning. A property at this elevation is in a hilly setting where rainfall runs off quickly and can find its way into roof edges, joints and tank lids. Clinic owners here should look at the whole water path, from the roof surface to the tank walls and the pipe penetrations, rather than treating only the visible leak. Prices for the main works, from the table of rates, typically fall between SAR 8 and SAR 150 depending on the element, so it helps to know which parts of the system need attention before requesting quotes.

A sensible sequence starts with an inspection of the roof, tank and any basement or bathroom spaces beneath them, with cracks mapped and marked. Next, treat the structure: crack injection at SAR 40–120 per metre can seal active leaks in the concrete, and the tank's internal surfaces can be coated at SAR 25–60 per m² to protect water quality. Then cover the roof with liquid waterproofing at SAR 8–25 per m² or a bitumen membrane at SAR 15–35 per m², adding XPS boards at SAR 12–30 per m² where insulation is also wanted. Finally, test the tank after curing, record the work, and schedule a simple check after the first rainy season so any movement is caught early.

For clinics, work is scheduled around patient hours and kept to the areas that need it.

When do you need water tank waterproofing?

These are the signs most often linked to water tank waterproofing:

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

Causes we see in the field

• A common cause: damaged old coating.
• Cracks in the walls or floor.
• A common cause: construction joints.

Tools and methods, and when we use them

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.

Quick comparison: facts and costs in Ahad Almasarihah

Questions from Ahad Almasarihah

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.