Floor & balcony waterproofing for rest houses & farms in Jubail

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

Before we start: what we know about Jubail

Team note on Jubail: 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.. Jubail is about 0.9 km from the sea coast (OpenStreetMap).

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data).

An owner of a rest house or farm in Jubail usually has a property that gets used in bursts: busy on weekends and holidays, then left closed for days or weeks. A floor slab that sits quietly through the week, a balcony that takes sun and rain in turn, and a roof or water tank that is only checked when something goes wrong can all develop leaks unnoticed. By the time water shows on a ceiling or a tile begins to lift, the damage is usually spreading beneath the surface.

The local facts shape how this should be approached. The centre of Jubail sits about 4 m above sea level, so drainage can be slow and standing water may linger after heavy rain rather than running away quickly. Jubail is also about 0.9 km from the sea coast, which means salt-laden air is part of daily life and can accelerate corrosion of metal fixings, degrade exposed surfaces and sit within cracks. For an owner, this points toward protecting the surfaces that face the weather, checking edges and joints regularly, and treating any crack early rather than waiting for it to widen.

A sensible sequence begins with an inspection of the floor, balcony, roof and any water tank, marking cracks, blistering, ponding areas and wherever tiles sound hollow. Next, address active cracks first, since crack injection is usually the most targeted fix when a single line is leaking. Then decide on the surface system that suits each area: liquid roof waterproofing or a bitumen membrane for exposed roofs, epoxy coating or spray foam where a durable seal is needed, and XPS boards where insulation is also wanted. Tanks should be cleaned and given an internal coating before refilling. Finally, schedule a re-check after the first heavy rain and again each year before the busy season, so small faults are caught while they are still inexpensive to repair.

Rest houses and farms often have long buried lines, tanks and irrigation that need separate tests.

Signs that call for floor & balcony waterproofing

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

• Damp under the light well
• A wrong fall towards the door threshold
• Water passing from the balcony to the floor below

Causes we see in the field

• A blocked drain.
• Incorrect falls — we check this before anything else.
• A common cause: a threshold without waterproofing.

Tools and methods, and when we use them

The steps in order

1. Checking the falls: Where water collects and where it should go.
2. Details: Thresholds, drains and upstands.
3. Waterproofing: The layer is applied and protected.
4. Flood test: Tested before the finish goes on.

Facts and costs — Jubail

Short answers for Jubail

Common mistakes we see

• Tiling a balcony without waterproofing

The written outputs

The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.