Bitumen membrane for hotels & serviced apartments in Jeddah
In short: In Jeddah (Jeddah), bitumen membrane for hotels & serviced apartments begins with the roof, falls and drains survey and the flood test; nothing is opened until the position is clear. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Published price: Bitumen membrane (per m²), SAR 15–35 per m²; anything else is quoted after the inspection.
Why bitumen membrane differs in 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..
Before any bitumen membrane goes down on a hotel or serviced apartment roof in Jeddah, the first thing to check is the site's position on the map. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data), and the city is about 2 km from the sea coast (OpenStreetMap). That combination matters because it shapes how water moves across the roof and how salt-laden air reaches the surface. Fixing the drainage falls and outlets therefore comes first, so that rainwater leaves quickly rather than pooling on the membrane. The technician should also confirm the substrate is sound and dry enough for bitumen to bond, and that any existing layers are assessed before anything new is laid over them.
Several points are left to the site visit, because they depend on the particular building and cannot be judged from a distance. These include the age and condition of the existing roof, the presence of blisters or lifted laps, the state of parapets, upstands and penetrations such as vents, pipes and access hatches, and whether a separate basement or bathroom waterproofing scope also applies to the property. Any cracks in the substrate should be recorded and measured on site, since crack injection is priced by the metre and its extent is only known once the surface is open to inspection. The owner or manager should also be asked about any previous leaks, the rooms directly beneath the roof, and whether the building is occupied during works, as this affects access and timing.
To help the technician prepare, the following points are useful to bring to the visit. Note the approximate roof area in square metres, since bitumen membrane is quoted at SAR 15–35 per m², and record whether any alternative such as liquid roof waterproofing (SAR 10–25 per m²) or spray foam (SAR 20–45 per m²) has already been discussed with the owner. Where insulation is part of the plan, XPS boards at SAR 15–30 per m² may be relevant. Bring photographs of the roof and the rooms below, a sketch of the drainage layout, and any previous waterproofing records. Clear information at this stage makes the survey faster and the quotation more accurate.
For hotels and serviced apartments, rooms are handled in batches to keep units available.
Signs worth paying attention to
These are the signs most often linked to bitumen membrane:
- A flat concrete roof that needs waterproofing
- Old rolls that are cracking
Causes we see in the field
- No protection layer — we check this before anything else.
- Seams that were not welded properly.
Tools and methods, and when we use them
| Tool | What it finds | When we use it 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 |
From the first visit to the report
- 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) |
Common questions about bitumen membrane in 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.
What is the first step of bitumen membrane for hotels & serviced apartments?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
How much 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 get at the end?
Photos of the welds and the flood-test result, in a technical report that carries a verification code.
What we advise against
- Leaving the membrane exposed without protection
What you receive
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
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- 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).
- 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.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
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