Roof waterproofing for restaurants in Abu Arish

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

Why roof waterproofing differs in Abu Arish

Team note on Abu Arish: 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 Abu Arish sits about 67 m above sea level (SRTM open elevation data).

Abu Arish sits in the Jazan region of southwestern Saudi Arabia, and the centre of the town sits about 67 m above sea level (SRTM open elevation data). That modest height means the town is not exposed to the flash flooding that can strike low-lying coastal streets, but rain run-off from higher ground still gathers on flat restaurant roofs. For a restaurant owner, the practical effect is that the roof must shed water quickly through well-placed drains and falls, and the membrane must be laid with that flow in mind rather than assuming the site is sheltered.

Roof waterproofing for a restaurant is usually chosen from a short list of systems, each with its own cost range. Liquid roof waterproofing typically runs SAR 8–25 per m², making it a common choice for large, open roof areas where a seamless film is needed. Bitumen membrane costs SAR 15–35 per m² and suits roofs that will carry foot traffic or equipment. Where the kitchen extraction and air-conditioning plant add weight and heat, XPS boards at SAR 12–30 per m² can be fitted as an insulating layer beneath protection. Spray foam, at SAR 20–45 per m², offers a seamless, insulating alternative for irregular shapes such as parapets and rooftop vents. Crack injection, priced at SAR 40–120 per m, is a repair method used when existing slabs show movement, and the owner should expect it to be quoted separately from full recoating.

Restaurant owners in Abu Arish often make the same few mistakes. The first is treating the roof as a one-off job and skipping the drainage check, which leaves ponding water to attack the membrane within a few seasons. The second is applying a coating over a damp or dusty surface, so the layer peels at the first hot spell. The third is leaving the rooftop plant unsupported and letting it rest on the new membrane, which tears it over time. The fourth is comparing quotes only by price per m² without checking whether preparation, primer and edge detailing are included. Avoiding these errors protects the kitchen and dining area below from leaks that would otherwise interrupt trade.

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

When do you need roof waterproofing?

The following signs are worth checking before they grow:

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

Causes we see in the field

• Cracks in the roof slab.
• A common cause: wrong falls towards the drains.
• Damaged waterproofing around tank and AC bases.

How we choose the tool in Abu Arish

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.

Abu Arish in facts and sources

Short answers for Abu Arish

Mistakes that cost more

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

What you receive

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.