Water tank waterproofing in Ahad Rafida: before buying or handover

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

Water tank waterproofing in Ahad Rafida: the local context

Main roads in or near Ahad Rafida: King Khalid Road. The centre of Ahad Rafida sits about 2055 m above sea level (SRTM open elevation data).

Team note on Ahad Rafida: 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 Ahad Rafida sits about 2055 m above sea level, a height that shapes how a water tank should be checked before any waterproofing work is bought or handed over. At that elevation the tank is likely to be exposed to strong sun during the day and cooler nights, so the first thing to examine is the tank's internal and external surfaces for hairline cracks, flaking, or old coating that has lifted. Tank internal coating is priced at SAR 25–60 per m², which makes a proper surface inspection worth doing before any quote is accepted, since the scope of work depends heavily on the condition of the existing layer.

What is left to the site visit is the detail that cannot be judged from a description. The technician should measure the real surface area of the tank walls and floor, confirm whether the tank is open or covered, and check whether any cracks run through the structure and need crack injection, which is charged at SAR 40–120 per metre. The choice of material also depends on the site: epoxy coating runs at SAR 35–90 per m², while spray foam is SAR 20–45 per m² and bitumen membrane SAR 15–35 per m², so the visit should confirm which system suits the tank's use and access. Roof and surrounding areas should be looked at too, since liquid roof waterproofing costs SAR 8–25 per m² and XPS boards SAR 12–30 per m² where insulation is also wanted.

Useful information for the technician includes the tank's size and material, any history of leaks or previous repairs, whether the water stored is for drinking or general use, and the exact location of the tank relative to the roof and walls. Please share photographs of visible cracks and staining if possible, and note when the leak was first noticed. Clear answers to these questions let the technician prepare the right materials and give a realistic estimate on the day of the visit.

Before buying or taking over a property, an inspection gives you findings in writing before you sign.

Signs that call for water tank waterproofing

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

• 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 — we check this before anything else.
• Damaged old coating — we check this before anything else.
• Construction joints — we check this before anything else.

How we choose the tool in Ahad Rafida

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.

Ahad Rafida in facts and sources

Short answers for Ahad Rafida

What we advise against

• 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.