Roof waterproofing for restaurants in Al Azyzya, Riyadh

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

Before we start: what we know about Al Azyzya

The centre of Al Azyzya is at 24.5877, 46.7701, about 17 km from the centre of Riyadh, with an approximate radius of 3 km. The service-area circle on the map below is drawn from this point. Main roads in or near Al Azyzya: Southern Ring Road, Southern Ring Road, Al-Kharj.

The centre of Al Azyzya sits about 589 m above sea level (SRTM open elevation data).

Roof leaks are the most common problem for restaurant roofs in Al Azyzya, and they often start where kitchen extraction units, ducts and plant platforms sit on the roof. Constant foot traffic, heavy equipment and grease-laden air can break down older coatings faster than on a quiet residential roof, so water tends to find its way in at joints and around fixings. A waterproofing contractor who understands this will look first at the penetrations and edges before covering the open roof area.

Al Azyzya is a fairly elevated part of Riyadh, with its centre sitting about 589 m above sea level and roughly 17 km from the city centre. Local roofs can be exposed to strong sun and heat for long hours, which is why a coating that stays flexible through temperature swings matters. For a restaurant roof, the approach is usually a liquid roof waterproofing system for the main deck, with the work sized to the area actually being treated. Liquid roof waterproofing typically falls within SAR 10–25 per m², while a bitumen membrane sits in the SAR 15–35 per m² range if the roof is better suited to a sheet system. Where a crack needs sealing before coating, crack injection is priced at SAR 40–125 per metre.

Before the visit, ask the contractor to confirm which part of the roof they will treat and how they will handle the equipment platforms and drainage outlets around the kitchen. Ask whether they will check for existing cracks and ponding, and what preparation the surface needs before coating. Request a written breakdown showing the rate per m² and any per-metre charges for crack work, so you can compare quotes on like-for-like terms. Confirm when the restaurant can expect the roof to be walkable again, so service hours are not disrupted.

For restaurants, visits are planned outside service hours and recorded for the premises file.

When do you need roof waterproofing?

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

• Water pooling on the roof
• Stains on the top-floor ceiling after rain
• The old waterproofing is cracking

The most common causes

• Wrong falls towards the drains.
• Damaged waterproofing around tank and AC bases — we check this before anything else.
• A common cause: cracks in the roof slab.

Tools and methods, and when we use them

The steps in order

1. Survey: Falls, drains and the condition of the old layer are recorded.
2. Preparation: Cleaning and repairs before any new layer.
3. Primer: The base coat that the system needs.
4. Waterproofing layers and details: Corners, upstands and bases get their own detail.
5. Flood test: The roof is flooded and checked before it is covered.

Facts and costs — Al Azyzya

Questions from Al Azyzya

Common mistakes we see

• Ignoring the tank bases
• Covering the waterproofing before the flood test

What you get after the work

You receive: a quality record with photos and the flood-test result, in a technical report with a verification code.