Roof waterproofing for restaurants in Aldiriyah

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

Why roof waterproofing differs in Aldiriyah

Team note on Aldiriyah: 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 Aldiriyah sits about 655 m above sea level (SRTM open elevation data).

Does a restaurant roof in Aldiriyah need waterproofing, and how much should it cost? The centre of Aldiriyah sits about 655 m above sea level, so rooftops here can be exposed to the full sweep of local weather, and a leak above a kitchen or dining room is costly to fix. For roofs, liquid roof waterproofing is priced at SAR 8–25 per m², while bitumen membrane runs SAR 15–35 per m² and XPS boards SAR 12–30 per m². Your choice depends on the roof's condition, how much foot traffic and equipment sits on it, and how long you want the system to last before it needs attention again.

Before any work is quoted, the inspection should follow a clear sequence. The inspector walks the full roof surface and notes ponding areas, cracked or lifting finishes, and the state of drains, parapets and roof penetrations such as exhaust ducts and vent pipes. Where a leak is suspected below, the team checks ceilings and walls inside the restaurant for staining, and if cracks are present, crack injection is priced at SAR 40–120 per metre so the extent of the repair can be measured. Any rooftop water tanks are checked too, since tank internal coating is priced at SAR 25–60 per m², and the findings are then compared against the options above to recommend the most suitable system.

To make the visit productive, gather the paperwork and information the inspector will need. Have any earlier roofing invoices or waterproofing records ready, along with a note of when leaks were last seen and in which areas of the dining room or kitchen. Clear access to the roof hatch or stairs in advance, and tell the team about any rooftop equipment such as air conditioning units, extraction fans or grease ducts that must stay in operation during the work. If the kitchen runs late, mention the hours so that work can be scheduled around service. Having this information ready helps the inspection focus on the real problem areas rather than repeating checks.

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

Signs that call for roof waterproofing

The following signs are worth checking before they grow:

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

Causes we see in the field

• Wrong falls towards the drains.
• Damaged waterproofing around tank and AC bases — we check this before anything else.
• 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.

Quick comparison: facts and costs in Aldiriyah

Short answers for Aldiriyah

Mistakes that cost more

• 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.