Floor & balcony waterproofing for clinics in Yanbu

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

What is specific about Yanbu for floor & balcony waterproofing

Yanbu is about 1.2 km from the sea coast (OpenStreetMap). The centre of Yanbu sits about 6 m above sea level (SRTM open elevation data).

Main roads in or near Yanbu: King Abdulaziz Road, Umluj Road, Al Hanan Street. Team note on Yanbu: 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 clinics in Yanbu most often fails at the joints and drains rather than across the open floor. Clinics see constant wet traffic from handwashing, sterilisation, cleaning and patients coming in from outside, and water that seeps under tiles or around floor drains can stay hidden for a long time before staining ceilings or loosening finishes below. Balconies and terraces add a second weak point where the membrane meets the upstand, the outlet and the door threshold.

Yanbu's location shapes how we approach this work. The centre of the city sits about 6 m above sea level, and the coast is about 1.2 km away, so buildings here face a salty, humid air environment that can accelerate corrosion of embedded metal and weaken poor-quality coatings over time. Because the sea is so close, we treat salt-laden moisture as a standing factor rather than an occasional one. That means choosing systems that tolerate humidity during curing, paying close attention to surface preparation before any coating goes down, and checking that existing screeds are sound and dry enough to bond. Where a floor sits over a utility space or a lower level, we also assess whether moisture is rising or migrating, since this changes which membrane is appropriate.

Before a site visit, it helps to have a few details ready. Tell us the floor area and whether the space is an enclosed treatment room, a wet area, a balcony or a plant or storage zone, because material costs vary widely by application: liquid roof waterproofing runs SAR 8–25 per m², bitumen membrane SAR 15–35 per m², spray foam SAR 20–45 per m², epoxy coating SAR 35–90 per m², and crack injection SAR 40–120 per metre. Ask whether the clinic can close the area for a short period, how the floor drains are connected, and whether there are any past leaks or staining. Photos of the affected surfaces and any existing reports will let the inspection focus on the likely failure points from the start.

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

When do you need floor & balcony waterproofing?

These are the signs most often linked to floor & balcony waterproofing:

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

Causes we see in the field

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

Tools we use in Yanbu

How the work is done, step by step

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 — Yanbu

Short answers for Yanbu

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.