Bitumen membrane for duplexes in Madinah
In short: Bitumen membrane for duplexes in Madinah starts with the roof, falls and drains survey, then the flood test, before anything is opened. The centre of Madinah sits about 589 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.
What is specific about Madinah for bitumen membrane
Team note on Madinah: 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 Madinah sits about 589 m above sea level (SRTM open elevation data).
Madinah's centre sits about 589 m above sea level, which matters for a bitumen membrane on a duplex roof. Before quoting, the technician first checks the roof's slope and whether water currently pools anywhere, because a bitumen membrane relies on the surface draining cleanly to outlets. The first look is also at the existing surface condition: loose material, old patches, and any cracks, since these decide whether the membrane can go straight over or needs preparing first. The price range for bitumen membrane here is SAR 15–35 per m², and that figure is only a starting point until the roof area is measured on site.
What is left to the site visit is the part that cannot be judged from a description. The technician needs to walk the roof to confirm the true area, note where parapets, pipes, and roof hatches meet the surface, and see how the membrane will turn up at those edges. They also check whether the duplex shares a roof line with a neighbouring unit, and whether access to the roof is safe for materials to be carried up. Any section where water has already entered the upper floor is recorded so the cause can be traced rather than covered over. The final scope, and therefore the final cost, depends on what the visit reveals.
For the technician, the useful information is the sequence and the details to note. Record the measured roof area in square metres, the number and position of drains and outlets, and the condition of each parapet and upstand. Photograph any cracks, blisters, or ponding before work begins, so the starting state is clear. Confirm whether the owner wants the membrane alone or wants insulation boards included, since XPS boards are priced separately at SAR 10–30 per m². Note any roof-mounted equipment such as water tanks or air-conditioning units that must be lifted or worked around. Keeping these records together makes the quote easier to check and the job easier to finish.
In a duplex, the two floors often share lines, so tests are done floor by floor.
When do you need bitumen membrane?
If you notice one of these signs in Madinah, it is a good moment to talk to the team:
- Old rolls that are cracking
- A flat concrete roof that needs waterproofing
The most common causes
- Seams that were not welded properly.
- No protection layer — we check this before anything else.
Tools and methods, and when we use them
| Tool | What it finds | When we use it in Madinah |
|---|---|---|
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
The steps in order
- 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.
Madinah in facts and sources
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Madinah sits about 589 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Madinah: 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 (Madinah) |
Short answers for Madinah
What is the difference between standard spraying and integrated pest management?
Standard spraying treats visible symptoms only, while integrated pest management includes diagnosis, sealing entry points, and multiple methods for longer-lasting results.
Could the leak be caused by weak waterproofing rather than the pipes?
Yes, damage to the waterproofing layer beneath the bathroom floor is one of the most common causes of leaks, especially in older buildings. In this case, water seeps through the tile joints into the screed and then down to the ceiling below. A specialized inspection can distinguish this from a pipe leak.
What is the difference between drain unblocking and drain cleaning?
Unblocking removes an existing blockage that prevents drainage, while cleaning is a preventive procedure that removes deposits and grease from pipes before they cause a blockage.
Where does bitumen membrane for duplexes start in Madinah?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
What does bitumen membrane cost in Madinah?
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
The written outputs
You receive: photos of the welds and the flood-test result, in a technical report with a verification code.
If you live in Madinah and are new to the area
- 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.
- 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).
Sources and method
- SRTM (NASA) open data
- Kashf team
- Customer questions (reviewed)
- Owner price list for Madinah
- 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