Floor & balcony waterproofing in Alzulfi: for companies (annual contract)

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

Why floor & balcony waterproofing differs in Alzulfi

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.. The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data).

Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road.

Floor and balcony waterproofing in Alzulfi starts with the ground itself. The centre of Alzulfi sits about 615 m above sea level, which means a company site here is not in a low-lying hollow where water pools, so the first question on any visit is where the water actually goes when it reaches the surface. Begin by checking the slope of the floor and balcony, the outlets, and the drainage line at the edges. The falls in the surface, the state of the existing screed, and any cracks are the points that decide the system, because a membrane laid over a poor fall will hold water and fail early.

Some matters are left to the site visit and cannot be settled from a desk. The technician must walk the area, test the substrate for moisture and laitance, measure the true area in square metres, and look at how the existing waterproofing meets the walls, upstands and drains. The choice between bitumen membrane, liquid roof waterproofing, spray foam or epoxy coating depends on what is found there, as does whether crack injection is needed before any coating goes down. Where a balcony sits above occupied space, the technician should also check insulation options such as XPS boards, and confirm whether any basement or tank element is part of the same job. Pricing for each route is set per square metre or per metre of crack, so accurate quantities taken on site are what make an estimate usable.

To help the technician, the client should prepare a short brief before the visit. Note the building use, whether the area is a floor, a balcony, a roof-level slab or a basement, and any history of leaks, staining or ponding. Share drawings or sketches showing the floor areas, the drain positions and any known cracks, and say which part of the company's premises is in use during the works so that access and downtime can be planned. Mention whether the area is trafficked, and whether any tanks or bathrooms are part of the scope. A clear brief lets the technician arrive ready to measure and test, rather than spending the visit gathering basic information.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

Signs worth paying attention to

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

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

Causes we see in the field

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

How we choose the tool in Alzulfi

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.

Alzulfi in facts and sources

Short answers for Alzulfi

What we advise against

• Tiling a balcony without waterproofing

What you get after the work

You receive: the flood result and photos of the details, in a technical report with a verification code.