Bitumen membrane in Khafji: cost & published offers
In short: Bitumen membrane (cost & published offers) in Khafji starts with the roof, falls and drains survey, then the flood test, before anything is opened. Khafji is about 2 km from the sea coast (OpenStreetMap). Pricing starts from Bitumen membrane (per m²) (SAR 15–35 per m²), and other items are quoted after the visit.
Why bitumen membrane differs in Khafji
Main roads in or near Khafji: King Abdullah Road. Team note on Khafji: 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..
Khafji is about 2 km from the sea coast (OpenStreetMap). The centre of Khafji sits about 9 m above sea level (SRTM open elevation data).
Khafji sits about 9 m above sea level, and its centre is roughly 2 km from the coast. That combination is the first thing a technician looks at when a bitumen membrane is quoted, because the ground level and the distance from the sea both shape how water moves across and under a roof or a slab. A site that is low and close to the shore may collect and hold water differently from one set further inland, so the first check is the surrounding drainage, the slope of the roof, and whether rainwater has a clear route away from the building.
Several things cannot be judged from a distance and are left for the site visit. The technician will need to see the existing surface, any old membrane that has blistered or split, the state of the upstands and parapets, and the position of drains and outlets. Moisture in the substrate, cracks in the screed, and the condition of the edges where the membrane meets walls are all assessed on site. The published bitumen membrane rate of SAR 15–35 per m² is a starting range only; the final figure depends on what is found when the surface is opened up and measured.
Some information helps the technician prepare before arriving. Note the roof area in square metres, any pipes, plant or fixtures that will need working around, and how the roof is accessed. Mention previous leaks, where they appeared, and whether the building has been repainted or repaired recently. If the same roof area also needs liquid waterproofing, spray foam, or XPS insulation, say so at the start, since these are priced separately and can change the scope of work. A clear description of the building and its history lets the visit focus on the real problems rather than general checks.
Prices shown on this page come from our own published price list for the city; the final price is set after inspection.
Signs worth paying attention to
These are the signs most often linked to bitumen membrane:
- Old rolls that are cracking
- A flat concrete roof that needs waterproofing
The most common causes
- Seams that were not welded properly — we check this before anything else.
- A common cause: no protection layer.
Tools we use in Khafji
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| 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.
Quick comparison: facts and costs in Khafji
| Item | Value | Source |
|---|---|---|
| District profile | Team note on Khafji: 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 |
| Roads | Main roads in or near Khafji: King Abdullah Road | Kashf data (owner) |
| District profile | The centre of Khafji sits about 9 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Khafji is about 2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Khafji) |
Short answers for Khafji
Where does bitumen membrane (cost & published offers) start in Khafji?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
What does bitumen membrane cost in Khafji?
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.
Common mistakes we see
- 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 Khafji
- The Saudi weekend is Friday and Saturday; mention your preferred day and time when booking.
- You can message us on WhatsApp in English; the booking details are sent back to you in the chat to confirm before the visit.
- 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
- © OpenStreetMap contributors (ODbL)
- Kashf data (owner)
- Kashf team
- Owner price list for Khafji
- 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