Bitumen membrane for schools in Alqunfudhah

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Why bitumen membrane differs in Alqunfudhah

Team note on Alqunfudhah: 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.. Alqunfudhah is about 0.4 km from the sea coast (OpenStreetMap).

The centre of Alqunfudhah sits about 7 m above sea level (SRTM open elevation data).

Does a school roof in Alqunfudhah really need a bitumen membrane, and what does it cost? The answer depends on the roof's exposure, and Alqunfudhah has a lot of it. The centre of the town sits about 7 m above sea level, and it is only about 0.4 km from the sea coast, so school buildings here face salt-laden air and the moisture that comes with it. A bitumen membrane is priced at SAR 15–35 per m², which places it among the more economical roof options, and it is a common choice for flat school roofs where the building needs a continuous sealed layer.

Before any work is quoted, the inspection follows a clear sequence. The inspector walks the full roof surface and notes where the membrane has lifted, blistered, or cracked, and checks the upstands, drains, and joints where water is most likely to enter. Attention is also given to areas where a previous coat has worn thin, since these are often the places where leaks first appear in classrooms below. The findings are recorded by area so that the school can see exactly which sections need attention and which can be left in place. Where a crack runs through the roof rather than across the surface, crack injection is a separate item priced at SAR 40–120 per metre and is assessed on its own line.

To make the visit efficient, the school should prepare a few things in advance. Clear access to the roof, including the stairs or ladder route and any locked hatches, so the inspector can reach every section without delay. Provide the building plan or a rough sketch showing the roof areas, and note any spots where leaks were reported during past rains. Identify the staff member who will be present during the inspection so questions can be answered on the spot. Finally, arrange for the roof to be free of loose equipment and stored materials, so the surface can be examined properly and the membrane work can begin without obstruction once the scope is agreed.

For schools, the larger jobs are planned for weekends and holidays.

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

Where the problem usually comes from

• Seams that were not welded properly — we check this before anything else.
• No protection layer.

Tools and methods, and when we use them

From the first visit to the report

1. Preparation: Cleaning, priming and repairs.
2. Torch welding: Overlaps are welded and checked.
3. Details: Upstands, drains and bases.
4. Protection and flood test: Protection is laid after a successful flood test.

Quick comparison: facts and costs in Alqunfudhah

Common questions about bitumen membrane in Alqunfudhah

Mistakes that cost more

• Leaving the membrane exposed without protection

The written outputs

You receive: photos of the welds and the flood-test result, in a technical report with a verification code.