Roof waterproofing for restaurants in Dhahran

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

Before we start: what we know about Dhahran

Team note on Dhahran: 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 Dhahran sits about 16 m above sea level (SRTM open elevation data).

Dhahran is about 5.9 km from the sea coast (OpenStreetMap).

Does a restaurant roof in Dhahran really need waterproofing, given how dry the air can feel? The answer is yes, and the local geography explains why. The centre of Dhahran sits about 16 m above sea level, and it is about 5.9 km from the sea coast. That mix of a low, flat site close to the Gulf means roofs can take on salt-laden air and sudden rain, and a restaurant's kitchen extraction, hot surfaces and heavy foot traffic on rooftop equipment add further wear. Liquid roof waterproofing is typically priced at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², and XPS boards at SAR 12–30 per m², so owners can compare systems before choosing one that suits their roof and budget.

A roof check for a restaurant usually follows a clear sequence. The inspector first walks the full roof area and marks any cracks, blistered surfaces and areas where ponding water has been left standing. Cracks are measured along their length, because crack injection is priced per metre at SAR 40–120 per m, and that measurement helps set the scope of work. Around drains, parapets, rooftop units and vent pipes, the inspector looks for lifted edges or failed sealant, since these junctions are where leaks most often start. The findings are then grouped by area, so the owner receives a plan that separates small repairs from full re-coating.

Before the visit, it helps to gather a few practical details so the inspection can move quickly. Note when leaks were last seen, and whether they occur after rain, during cooking hours or after equipment is serviced. Collect any previous repair records, roof access arrangements and the dates when rooftop equipment was installed or moved. Clear a safe route to the roof and tell the kitchen team in advance, so staff and deliveries are not disturbed. With these details ready, the visit can focus on the roof itself and produce a clear, usable report for the restaurant's next steps.

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 Dhahran, it is a good moment to talk to the team:

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

The most common causes

• A common cause: cracks in the roof slab.
• A common cause: damaged waterproofing around tank and AC bases.
• Wrong falls towards the drains.

Tools we use in Dhahran

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.

Dhahran in facts and sources

Short answers for Dhahran

What we advise against

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

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.