Floor & balcony waterproofing for schools in Aldawadmi

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

Before we start: what we know about Aldawadmi

Team note on Aldawadmi: 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 Aldawadmi sits about 976 m above sea level (SRTM open elevation data).

Main roads in or near Aldawadmi: King Abdulaziz Road, Dawadmi Bujadiyah Road.

Floor and balcony waterproofing for schools in Aldawadmi starts with a check of how water moves across the site, because the town's position matters. The centre of Aldawadmi sits about 976 m above sea level (SRTM open elevation data), so surfaces here are assessed for run-off direction and ponding before any material is chosen. Technicians look first at where water pools after rain, whether drainage outlets are clear, and whether balcony and walkway falls send water away from the building rather than back toward the wall.

Several points are left to the site visit, since they cannot be judged from a description alone. These include the condition of existing screeds, the width and depth of any cracks, whether moisture is rising from below, and the state of old membranes or tiles. Pricing is set only after this inspection. For reference, basement waterproofing runs SAR 50–150 per m², bathroom waterproofing SAR 15–40 per m², epoxy coating SAR 35–90 per m², and spray foam SAR 20–45 per m², but the final choice depends on what the visit finds. Crack injection is charged per metre at SAR 40–120 per m, and liquid roof waterproofing at SAR 8–25 per m².

To help the technician prepare, it is useful to share the floor plan or drawings, the number and location of balconies and classrooms affected, any known leak history, and the dates when the building is quiet enough to work. Mention whether a bitumen membrane (SAR 15–35 per m²) or XPS boards (SAR 12–30 per m²) were used before, and whether any water tanks on the roof need internal coating at SAR 25–60 per m². Clear notes on access and timing let the team plan the work around school hours and keep disruption to a minimum.

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

Signs that call for floor & balcony waterproofing

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

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

Where the problem usually comes from

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

Tools we use in Aldawadmi

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.

Quick comparison: facts and costs in Aldawadmi

Short answers for Aldawadmi

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.