Roof waterproofing for restaurants in Al Wrwd, Riyadh

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

What is specific about Al Wrwd for roof waterproofing

The centre of Al Wrwd is at 24.7244, 46.6785, about 1.2 km from the centre of Riyadh, with an approximate radius of 2 km. The approximate area shown on the map is centred here. Main roads in or near Al Wrwd: King Fahd Road, Olaya Street, Al Urubah Road.

The centre of Al Wrwd sits about 631 m above sea level (SRTM open elevation data).

Before any material is chosen for a restaurant roof in Al Wrwd, the technician first looks at where the building sits. The centre of Al Wrwd is at 24.7244, 46.6785, about 1.2 km from the centre of Riyadh, with an approximate radius of 2 km, so the district is close to the city's core and its buildings often carry heavy kitchen traffic and rooftop equipment. The centre of Al Wrwd also sits about 631 m above sea level, which matters because the roof is fully exposed to strong sun and dry heat, and surfaces expand and contract with those daily swings. Restaurant roofs often hold extract fans, condensers and grease ducts, so the first check is whether the existing membrane is still intact around these fixtures.

What is left to the site visit is the detail that cannot be judged from a description. The technician needs to walk the roof, find ponding areas, check the upstands and parapets, and confirm whether the slope drains properly to the outlets. They will look at the condition of the existing layer, whether it is bitumen, a liquid system or something older, and decide whether it can be overlaid or must be stripped back. Cracks, blisters and lifted edges are recorded on the spot. Only after this inspection is it sensible to pick between liquid roof waterproofing, a bitumen membrane, or insulation boards with a protective finish, since each suits different conditions.

Information that helps the technician arrive prepared is simple to gather in advance. The restaurant manager should note any past leaks, especially those that appeared after heavy rain or near the kitchen extract, and say which ceiling areas were affected. It helps to know which trades use the roof, how often equipment is serviced, and whether the kitchen has a water tank on the roof that may need internal coating as well. Access arrangements, the opening hours of the restaurant and the times when work can be carried out without disturbing service should also be shared. With this information ready, the visit can focus on the roof itself rather than on questions that could have been answered beforehand.

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

When do you need roof waterproofing?

These are the signs most often linked to roof waterproofing:

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

Causes we see in the field

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

Tools we use in Al Wrwd

From the first visit to the report

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 Wrwd

Short answers for Al Wrwd

What we advise against

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

The written outputs

The written output: a quality record with photos and the flood-test result. The report is numbered and can be checked with its verification code.