Floor & balcony waterproofing for duplexes in Ahad Rafida

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

Floor & balcony waterproofing in Ahad Rafida: the local context

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 (SRTM open elevation data).

Main roads in or near Ahad Rafida: King Khalid Road.

Before any product is chosen for a duplex floor or balcony in Ahad Rafida, the first check is the elevation. The centre of Ahad Rafida sits about 2055 m above sea level (SRTM open elevation data), which means the air is thinner and the temperature swings between day and night can be wide. Those swings make slabs and balcony edges expand and contract, so the technician looks first at existing cracks, the joints between the slab and the wall, and where the balcony meets the main building. Any crack that is already open is noted, because a crack injection is priced per metre at SAR 40–120 per m, and the length found on the day decides how much of that work is needed.

What is left to the site visit is the part that cannot be judged from a distance. The technician confirms whether the surface is sound enough for a coating, checks the moisture in the screed, and decides between liquid roof waterproofing at SAR 8–25 per m², a bitumen membrane at SAR 15–35 per m², or an epoxy coating at SAR 35–90 per m² for a balcony that takes foot traffic. Spray foam at SAR 20–45 per m² and XPS boards at SAR 12–30 per m² are considered only once the falls, the drainage outlets and the access to the lower floor are known. Bathroom waterproofing at SAR 15–40 per m² is measured separately, because wet areas need their own upturn at the walls. The final quote is therefore only firm after these checks are complete.

Information that helps the technician is simple to gather and saves time on the day. Tell us the age of the duplex, whether the balcony was tiled before, where water has previously collected or dripped into a room below, and whether there is a rooftop tank or a basement under the unit, because a tank internal coating at SAR 25–60 per m² or basement waterproofing at SAR 50–150 per m² follows a different route. Photographs of the cracks and the drainage points, with a rough sketch of the balcony size, let the team prepare the right materials before arriving.

In a duplex, the two floors often share lines, so tests are done floor by floor.

When do you need floor & balcony waterproofing?

The following signs are worth checking before they grow:

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

The most common causes

• A blocked drain.
• A common cause: a threshold without waterproofing.
• Incorrect falls.

Tools and methods, and when we use them

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.

Ahad Rafida in facts and sources

Common questions about floor & balcony waterproofing in Ahad Rafida

What we advise against

• Tiling a balcony without waterproofing

What you receive

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