Bitumen membrane in Alzulfi: with a verifiable technical report
In short: Bitumen membrane (with a verifiable technical report) in Alzulfi starts with the roof, falls and drains survey, then the flood test, before anything is opened. The centre of Alzulfi sits about 615 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 Alzulfi
The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data). Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road.
Team note on Alzulfi: 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..
Is a bitumen membrane the right choice for a roof or podium in Alzulfi, and how much should it cost? Alzulfi sits at about 615 m above sea level, and a bitumen membrane typically costs SAR 15–35 per m². Those two facts shape how you should plan the job, because the price you pay depends on the area, the condition of the existing surface, and the detail work around edges and drains.
The inspection starts before any price is agreed. The team checks the roof or podium surface for cracks, blisters, ponding areas and failed joints, and notes where water currently enters the building. They measure the area in square metres so the quote can be built from the per-m² rate rather than a rough estimate. Crack areas are recorded separately, since crack injection is priced per metre at SAR 40–120 per metre and is handled as its own line item. The report then sets out what was found, what is proposed, and how each item is priced, so you can check every figure against the work described.
Before the visit, gather a few things that make the inspection faster and the report more useful. Find any earlier waterproofing records, drawings showing the roof layout, and the locations of drains, parapets and roof penetrations. Note where leaks have appeared in past rainy spells and take photos of them, dated if possible. Clear access to the roof and any ceilings below it, and let the inspector know which areas are in regular use. With this information ready, the report can list the membrane area, any repairs and the expected cost range clearly, giving you a written technical record to compare against any other offer you receive.
Each job ends with a written report that carries a verification code you can check on our site.
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
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 Alzulfi
| Tool | What it finds | When we use it in Alzulfi |
|---|---|---|
| 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.
Quick comparison: facts and costs in Alzulfi
| Item | Value | Source |
|---|---|---|
| Roads | Main roads in or near Alzulfi: King Fahd Road, Sheikh Ibn Baz Square, King Salman Road | Kashf data (owner) |
| District profile | The centre of Alzulfi sits about 615 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Alzulfi: 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 (Alzulfi) |
Questions from Alzulfi
Where does bitumen membrane (with a verifiable technical report) start in Alzulfi?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
What does bitumen membrane cost in Alzulfi?
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 Alzulfi
- 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 data (owner)
- Kashf team
- Owner price list for Alzulfi
- 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