Epoxy coating & waterproofing for schools in Khafji

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

Why epoxy coating & waterproofing differs in Khafji

The centre of Khafji sits about 9 m above sea level (SRTM open elevation data). Khafji is about 2 km from the sea coast (OpenStreetMap).

Team note on Khafji: 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.. Main roads in or near Khafji: King Abdullah Road.

Before any quote is discussed for a school in Khafji, the first thing to check is where the building sits, because that shapes how water is likely to behave around it. The centre of Khafji sits about 9 m above sea level (SRTM open elevation data), and the town is about 2 km from the sea coast (OpenStreetMap). Those two facts together mean that ground drainage and groundwater pressure are not the same as in a low coastal plot, but the site is still close enough to the sea that salt-laden air and moisture need to be considered when choosing coatings for walls, floors and external surfaces. This is the reason the initial check focuses on drainage paths, existing cracks and any signs of damp in school areas that are used daily, such as corridors, washrooms and storage rooms.

Some points can only be settled at the site visit. The technician needs to walk the roof, basement, water tanks and washrooms to see which surfaces are actually wet, where cracks run and how far they extend. Length matters here: crack injection is priced per metre, with a range of SAR 40–120 per m, so the number of metres found on site will decide much of the final scope. Similarly, the area of each surface decides the cost of each system. Basement waterproofing ranges from SAR 50–150 per m², bathroom waterproofing from SAR 15–40 per m², and epoxy coating from SAR 35–90 per m². Which system suits each area, and whether a bitumen membrane, liquid roof waterproofing or spray foam is more suitable, is a decision made once the site has been measured and the condition of each surface is clear.

For the technician, it helps to bring a notebook and a measuring tape, record each area and crack length separately, and photograph any staining before work begins. Note whether the school has tanks that will need an internal coating, which is priced at SAR 25–60 per m², and whether XPS boards, at SAR 12–30 per m², could be used as an insulation layer on external walls. Keep school hours in mind so work in occupied areas can be scheduled around classes. Clear records of measurements and conditions make the quote easier to check and the job easier to carry out.

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

When do you need epoxy coating & waterproofing?

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

• A tank that needs an easy-to-clean surface
• A warehouse floor that is wearing away
• Oil stains on a floor

Causes we see in the field

• Insufficient preparation — we check this before anything else.
• A damp surface that ruins adhesion — we check this before anything else.

Tools we use in Khafji

The steps in order

1. Surface moisture reading: Epoxy is applied only when the substrate is dry enough.
2. Careful preparation: Grinding and cleaning for adhesion.
3. Layers: Primer and body coats as specified.
4. Inspection: Thickness and curing are checked.

Facts and costs — Khafji

Questions from Khafji

What we advise against

• Coating over a damp surface

What you get after the work

The written output: the epoxy system, thickness and curing time. The report is numbered and can be checked with its verification code.