Floor & balcony waterproofing for warehouses in Jubail

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

Floor & balcony waterproofing in Jubail: the local context

Team note on Jubail: 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.. Jubail is about 0.9 km from the sea coast (OpenStreetMap).

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data).

Floor and balcony waterproofing in warehouses is most often needed to stop moisture rising through the slab and causing cracking, dusting and peeling coatings. In Jubail, the approach has to account for how close the ground is to the water. The centre of Jubail sits about 4 m above sea level (SRTM open elevation data), and Jubail is about 0.9 km from the sea coast (OpenStreetMap). That combination means salt-laden air and groundwater pressure are real concerns, so a surface sealer alone is rarely enough for a warehouse floor. Crews should look at the full slab build-up, including any cracks that let moisture in from below.

Because of these local conditions, the method usually changes from a simple surface finish to a layered system. Cracks are typically stopped first with crack injection (SAR 40–120 per m), then the floor is coated with epoxy coating (SAR 35–90 per m²) for chemical and abrasion resistance. Where balconies or external areas face weather directly, liquid roof waterproofing (SAR 8–25 per m²) or a bitumen membrane (SAR 15–35 per m²) may suit better. Spray foam (SAR 20–45 per m²) and XPS boards (SAR 12–30 per m²) are other options to discuss with the surveyor, depending on the layout and how the floor is used. Each option has its own cost range, and the right mix depends on what the warehouse stores and how heavy the traffic is.

Before booking a visit, ask the provider to confirm the scope in writing, including which areas will be treated, how cracks will be prepared and what surface preparation is included. Ask whether the quote is per square metre or per metre of crack, and what is covered by each rate. Find out how long the work will take and how much access you need to give, so that stock and operations can be planned around it. Ask what the provider will check first on site, such as moisture levels and the condition of the existing slab. Finally, ask for examples of similar warehouse floors they have treated in the area, so you can judge whether their approach fits your building.

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

When do you need floor & balcony waterproofing?

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

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

The most common causes

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

How we choose the tool in Jubail

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.

Jubail in facts and sources

Short answers for Jubail

Mistakes that cost more

• 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.