Bitumen membrane in Madinah: preventive periodic check
In short: Bitumen membrane (preventive periodic check) 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.
Before we start: what we know about 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..
Does a bitumen membrane on a Madinah roof still need checking if it looks fine from below? Many property owners assume that a roof which does not leak is a roof that is performing well. In practice, a bitumen membrane can lose its protection long before water shows up inside the building. The centre of Madinah sits about 589 m above sea level, and that elevation is one reason owners here should not wait for a visible leak before arranging a preventive periodic check. A scheduled inspection looks for early wear, so that small repairs can be planned instead of emergency work.
The inspection itself follows a clear sequence. The technician first walks the full roof surface and notes any areas where the membrane looks lifted, blistered, or split along seams. Attention then moves to the edges, upstands, drain outlets and penetrations such as pipes and vents, since these are the points where water most often finds a way under the membrane. Where cracking or open joints are found, the inspector records their length, because crack injection is priced per metre, typically SAR 40–120 per m. Where the membrane surface has worn across a larger area, the work is measured per square metre, with bitumen membrane usually priced at SAR 15–35 per m². The findings are then written up so the owner can compare the options and decide on the scope of work.
Preparation makes the visit faster and the report more useful. Before the inspector arrives, clear the roof of loose materials, stored items and debris, and make sure the access hatch or ladder is safe to use. Gather any earlier records of roof works, previous repairs, or warranty papers, since these show what has been applied before and where. Note any places where you have seen staining on ceilings or walls below, and mention whether the building has water tanks or plant equipment on the roof. If a rooftop tank is present, its internal condition may be part of the review. Having this information ready helps the inspection focus on the areas that matter most.
Preventive checks follow a written schedule instead of waiting for a fault.
Signs worth paying attention to
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
- No protection layer — we check this before anything else.
- 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 (preventive periodic check) 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
What you get after the work
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