Bitumen membrane for warehouses in Aljumum
In short: In Aljumum (Aljumum), bitumen membrane for warehouses begins with the roof, falls and drains survey and the flood test; nothing is opened until the position is clear. The centre of Aljumum sits about 200 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.
What is specific about Aljumum for bitumen membrane
Team note on Aljumum: 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 Aljumum sits about 200 m above sea level (SRTM open elevation data).
Warehouses in Aljumum most often run into trouble with water pooling on flat roofs and ponding where drainage is slow, and that is where a bitumen membrane earns its place. Standing water sits on the roof, soaks into laps and seams, and gradually works its way into stored goods and the structure below. A bitumen membrane system, priced at SAR 15–35 per m², gives a continuous sheet that sheds water and resists the wear that comes from rain and sun over time.
Aljumum's setting shapes how that membrane is chosen and laid. The centre of Aljumum sits about 200 m above sea level (SRTM open elevation data), so the site is not at the low point where runoff naturally collects, but roof falls and outlets still need to be checked carefully so water moves off the roof rather than settling. The approach should begin with a look at the existing slope, the outlets, and the upstand details at walls and roof edges, because those are the points where a membrane fails first when water is left to stand.
Before the visit, ask the provider to explain how they will assess the current roof surface and whether the price quoted covers preparation as well as the membrane itself. Ask what the scope includes for repairing cracks, since crack injection is priced separately at SAR 40–120 per metre and can change the overall cost. Confirm how they will handle drainage points and where the membrane will terminate at walls. Finally, ask whether a liquid roof waterproofing option at SAR 8–25 per m² has been considered for areas that need a different finish, so you can compare the options side by side before work begins.
For warehouses, work is phased around operations and stored goods.
When do you need bitumen membrane?
If you notice one of these signs in Aljumum, it is a good moment to talk to the team:
- 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 Aljumum
| Method | What it helps with | Its role in Aljumum |
|---|---|---|
| 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 Aljumum
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Aljumum sits about 200 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Aljumum: 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 (Aljumum) |
Questions from Aljumum
What is the first step of bitumen membrane for warehouses?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
How much does bitumen membrane cost in Aljumum?
From our published price list: Bitumen membrane (per m²) SAR 15–35 per m². Quantities are confirmed at the inspection.
What do I get at the end?
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 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.
If you live in Aljumum and are new to the area
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- 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.
- 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).
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
Sources and method
- SRTM (NASA) open data
- Kashf team
- Owner price list for Aljumum
- 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