Floor & balcony waterproofing for restaurants in Alrass

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

Before we start: what we know about Alrass

Main roads in or near Alrass: King Abdulaziz Road, King Fahd Road, King Salman Road. The centre of Alrass sits about 695 m above sea level (SRTM open elevation data).

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..

Floor and balcony waterproofing in restaurants usually fails in one place first: where the floor meets drains, kitchen wash areas and the edges of outdoor seating. Constant water, grease, and foot traffic wear through the surface, and small cracks around fixtures let moisture reach the slab below. Left alone, this shows up as staining on ceilings in the room underneath, soft tiles, and a floor that stays damp after cleaning. Restaurant owners often notice the problem only after a tenant downstairs complains, so it is worth checking these high-wear zones before the problem spreads.

Alrass sits at about 695 m above sea level, and that elevation shapes how we approach the work. Rain in the area tends to arrive in short, heavy bursts, so water runs off balconies quickly but can pool at low points and seep into any hairline crack. For that reason, crack injection is often the first step where cracks are present, followed by a coating suited to the surface. For balconies exposed to open sky, liquid roof waterproofing is usually the more practical option, while epoxy coating is commonly used on indoor kitchen and wash floors where grease and cleaning chemicals are a daily challenge. Where a balcony has a planter or tiled finish, a bitumen membrane can add a more robust layer underneath. The aim is always to match the system to the exposure rather than apply one product everywhere.

Before the visit, ask the provider to walk the site with you and identify the wet zones, the age of the existing finish, and whether any previous coating was applied. Request a written breakdown of the work by area, with the unit rates used, such as the epoxy coating range of SAR 35–90 per m² or the crack injection range of SAR 40–120 per m, so you can compare quotes on like-for-like terms. Ask which materials they plan to use, how the surface will be prepared, and whether the work can be scheduled outside your busiest service hours. A clear plan at this stage makes the rest of the project far easier to manage.

For restaurants, visits are planned outside service hours and recorded for the premises file.

Signs worth paying attention to

The following signs are worth checking before they grow:

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

The most common causes

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

How we choose the tool in Alrass

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.

Alrass in facts and sources

Common questions about floor & balcony waterproofing in Alrass

Common mistakes we see

• Tiling a balcony without waterproofing

What you get after the work

You receive: the flood result and photos of the details, in a technical report with a verification code.