Bitumen membrane in Jubail: without breaking
In short: Bitumen membrane (without breaking) in Jubail starts with the roof, falls and drains survey, then the flood test, before anything is opened. The centre of Jubail sits about 4 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 Jubail
Team note on Jubail: 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 Jubail sits about 4 m above sea level (SRTM open elevation data).
Jubail is about 0.9 km from the sea coast (OpenStreetMap).
Jubail sits on the Arabian Gulf coast, and its centre lies about 4 m above sea level. The town is also about 0.9 km from the sea coast. Both facts shape how water behaves here. Low ground and a short distance from the shoreline mean that salt-laden moisture and groundwater can reach foundations and roofs more readily than in inland areas, so a bitumen membrane must be sealed carefully at every edge and penetration.
Because the land is so close to the sea, we check the substrate and the moisture level before any bitumen is laid. A membrane bonded to damp concrete can lift and blister within months, so the surface is dried, cleaned and primed first. The seams and corners get extra attention, since these are where salt and water tend to find a way through. Bitumen membrane work in Jubail is priced at SAR 15–35 per m², and the final figure depends on how many upstands, drains and joints the roof has.
Owners often make the same avoidable mistakes. Many lay a membrane straight over old cracks and do not inject or seal them first, which lets water return within a season. Others skip proper edge detailing, leaving the turn-up at parapets and walls unsealed. Some also ignore ponding on flat roofs, so water sits on the membrane for long periods and speeds up ageing. Choosing a method that suits the exposure, whether it is bitumen, liquid coating or insulated boards at SAR 12–30 per m², and checking the detailing before work starts, prevents most of these problems and keeps the waterproofing sound for years.
The aim is to locate the cause with instruments first, so any opening is limited to one point.
When do you need bitumen membrane?
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.
How we choose the tool in Jubail
| Tool | What it finds | When we use it in Jubail |
|---|---|---|
| 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 Jubail
| Item | Value | Source |
|---|---|---|
| District profile | Team note on Jubail: 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 | Jubail is about 0.9 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Jubail sits about 4 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Jubail) |
Common questions about bitumen membrane in Jubail
Where does bitumen membrane (without breaking) start in Jubail?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
What does bitumen membrane cost in Jubail?
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 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 Jubail
- You can message us on WhatsApp in English; the booking details are sent back to you in the chat to confirm before the visit.
- The Saudi weekend is Friday and Saturday; mention your preferred day and time when booking.
- 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
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Owner price list for Jubail
- 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