Floor & balcony waterproofing for warehouses in Alzulfi

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

Why floor & balcony waterproofing differs in Alzulfi

Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road. The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data).

Team note on Alzulfi: 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..

Alzulfi sits at an elevation of about 615 m above sea level according to SRTM open elevation data, which shapes how a warehouse floor and balcony are checked before any coating is chosen. At this height, the first checks focus on the condition of the existing slab, any cracks that have opened up with temperature swings, and whether water is already finding a path through joints or edges. Because warehouse floors carry heavy loads and are often walked on by forklifts, the surface is inspected for loose concrete, dusting, and old sealant that has failed. Where cracks are visible, crack injection is priced at SAR 40–120 per metre, so the length of each crack is measured early to give a realistic sense of scope.

The rest is left to the site visit, where the technician confirms what the drawings and a walk-through cannot show. This includes how moisture moves through the slab, whether the surface is level enough for the chosen system, and whether the balcony drainage falls away from the building. The choice between epoxy coating at SAR 35–90 per m², spray foam at SAR 20–45 per m², or a bitumen membrane at SAR 15–35 per m² depends on traffic, exposure and the state of the substrate, so no single option is assumed in advance. Liquid roof waterproofing at SAR 8–25 per m² and XPS boards at SAR 12–30 per m² are considered only where the relevant surface applies.

To help the technician, the most useful information is the exact area of each zone in square metres, the length of any cracks in metres, and a note of any past leaks or patch repairs. Photographs taken at several times of day show where water pools or runs off. It also helps to say whether the floor is in use during work, because that affects curing time and access. Records of any earlier coatings, including their type and age, allow the technician to judge adhesion and whether old layers must be removed. With these details ready, the visit can focus on confirming the plan rather than discovering basic facts on the day.

For warehouses, work is phased around operations and stored goods.

Signs that call for floor & balcony waterproofing

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

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

Tools and methods, and when we use them

From the first visit to the report

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 — Alzulfi

Short answers for Alzulfi

Common mistakes we see

• Tiling a balcony without waterproofing

What you get after the work

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