Bitumen membrane in Madinah: before buying or handover
In short: Bitumen membrane (before buying or handover) 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.
Why bitumen membrane differs in Madinah
The centre of Madinah sits about 589 m above sea level (SRTM open elevation data). 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..
Should I pay for a bitumen membrane in Madinah before buying a property or accepting a handover? Start with the place itself. The centre of Madinah sits about 589 m above sea level, so the city is a high, dry plateau setting and you should not assume that roofs and foundations here have seen the same water stress as coastal buildings. The main price reference for this specific system is SAR 15–35 per m², which sits in the middle of the range for roof and below-grade protection we list alongside basement waterproofing at SAR 50–150 per m² and liquid roof waterproofing at SAR 10–25 per m². Knowing these bands helps you judge whether a quotation is in line with the market or whether it is pricing the job well outside it.
When you inspect, begin with the roof and any surface where the bitumen membrane is exposed or lapped. Look for blistering, splits along joints, and areas where the membrane has lifted at the edges or around drains and upstands. Check the junctions with parapets and pipes, because these are where failures usually start. If you see cracks in the structure beneath, note their length, since crack injection is priced at SAR 40–120 per metre and a crack that runs along several metres can change the total cost of the job. Ask the seller or contractor to show you any previous repair records and what products were used, so you can confirm the membrane is the system you are paying for and not a cheaper surface treatment painted over it.
Before the visit, gather the documents and the plan. Ask for the original handover or completion certificate, any warranty papers, and a sketch of the roof showing area in square metres, drainage points, and access. Measure or obtain the roof area in square metres yourself, because every rate on this page is quoted per m², and an accurate figure lets you compare offers on equal terms. Write down the specific areas you want checked, and take photographs of existing defects so that you can compare them during and after the survey. Arrange access to the roof in daylight and, if you plan to use a tank or a basement area, make sure those spaces are clear and safe to enter.
Before buying or taking over a property, an inspection gives you findings in writing before you sign.
When do you need bitumen membrane?
The following signs are worth checking before they grow:
- A flat concrete roof that needs waterproofing
- Old rolls that are cracking
Where the problem usually comes from
- A common cause: no protection layer.
- Seams that were not welded properly — we check this before anything else.
Tools we use in Madinah
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| 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 |
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 | 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 |
| District profile | The centre of Madinah sits about 589 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Madinah) |
Common questions about bitumen membrane in 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 (before buying or handover) 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.
What we advise against
- Leaving the membrane exposed without protection
What you receive
You receive: photos of the welds and the flood-test result, in a technical report with a verification code.
Practical notes for residents of Madinah
- 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
- 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