Bitumen membrane for restaurants in Jeddah
In short: Bitumen membrane for restaurants in Jeddah starts with the roof, falls and drains survey, then the flood test, before anything is opened. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Pricing starts from Bitumen membrane (per m²) (SAR 15–35 per m²), and other items are quoted after the visit.
Before we start: what we know about Jeddah
The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Jeddah is about 2 km from the sea coast (OpenStreetMap).
Team note on Jeddah: 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..
Does a restaurant roof in Jeddah really need a bitumen membrane, and what will it cost? The answer depends on the roof, the kitchen exhaust and the traffic on top of it. Jeddah's centre sits about 15 m above sea level, and the city is about 2 km from the sea coast, so the roof of a restaurant here faces intense sun, heat and occasional heavy rain. A bitumen membrane is one of the waterproofing systems we offer for this kind of flat roof, and it is priced between SAR 15 and SAR 35 per m². Your exact figure depends on the area measured on site, so the price for your premises will come from that measurement rather than from a general rate.
Before any work is quoted, the inspection walks the whole roof surface and checks where water is likely to enter. The technician looks for cracks, which are sealed by crack injection at SAR 40–125 per metre, and for worn or lifting sections of the existing covering. Plant bases, drains, parapets and the points where pipes and ducts pass through the roof are all checked, since these are common routes for leaks in a restaurant. Where a roof is only partly damaged, the inspector notes which areas need repair and which can be covered, so the scope of work matches the real condition of the roof. The findings are then written up as a clear list of work and cost options for the owner to review.
To make the visit efficient, gather the documents and information the inspector will need. Have the roof plan or building drawings ready if you hold them, and note any past leaks, the locations where they appeared and the dates they were repaired. Tell the team which roof areas are used for equipment, storage or walking, because foot traffic and heavy units affect the choice of system. Clear access to the roof hatch or stair, and arrange for the kitchen extraction and rooftop units to be reachable on the day. With these ready, the inspection can focus on the roof itself and the quote can reflect your restaurant's actual conditions.
For restaurants, visits are planned outside service hours and recorded for the premises file.
Signs that call for bitumen membrane
The following signs are worth checking before they grow:
- A flat concrete roof that needs waterproofing
- Old rolls that are cracking
The most common causes
- No protection layer.
- A common cause: seams that were not welded properly.
Tools and methods, and when we use them
| Method | What it helps with | Its role in Jeddah |
|---|---|---|
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
How the work is done, step by step
- Preparation: Cleaning, priming and repairs.
- Torch welding: Overlaps are welded and checked.
- Details: Upstands, drains and bases.
- Protection and flood test: Protection is laid after a successful flood test.
Jeddah in facts and sources
| Item | Value | Source |
|---|---|---|
| District profile | Jeddah is about 2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Jeddah: 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. | Kashf team |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Jeddah) |
Short answers for Jeddah
Can I use household chemicals instead of calling a technician?
Using unsuitable chemicals may corrode pipes and does not fix the root cause of the blockage, so it is better to rely on a specialist technician.
What is the difference between foam insulation and other types of insulation?
Foam insulation is easy to apply on uneven surfaces and forms one continuous layer with no joints, while other types, such as bitumen rolls, need the joints to be welded. The contractor decides which is most suitable after inspecting the site.
Can thermal insulation be applied to an existing building?
Yes, thermal insulation can be installed on the roofs and walls of existing buildings without the need for major structural modifications. The contractor prepares the surface, then applies the insulating material and the protective layer over it.
Where does bitumen membrane for restaurants start in Jeddah?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
What does bitumen membrane cost in Jeddah?
From our published price list: Bitumen membrane (per m²) SAR 15–35 per m². Quantities are confirmed at the inspection.
What do I receive after the work?
Photos of the welds and the flood-test result, in a technical report that carries a verification code.
Mistakes that cost more
- Leaving the membrane exposed without protection
What you get after the work
The written output: photos of the welds and the flood-test result. The report is numbered and can be checked with its verification code.
Planning the visit in Jeddah
- Have access ready to the water meter, the tank hatches, the roof and the main valve; in apartment buildings the roof keys are often with the building guard (haris).
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- If you rent, tell your landlord or building management before the visit and agree in writing who pays; the written report can be shared with them.
Sources and method
- SRTM (NASA) open data
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Customer questions (reviewed)
- Owner price list for Jeddah
- Local pages are published only after a quality gate: real local facts, text similarity of no more than 15% with any other English page, and a claims check.
- النسخة العربية