Bitumen membrane in Alqunfudhah: when to call a technician

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

Alqunfudhah is about 0.4 km from the sea coast (OpenStreetMap).

Alqunfudhah sits about 7 m above sea level, and its centre is roughly 0.4 km from the coast. That combination means a technician will first look at how water moves across a flat, low-lying roof and where it can pool or be driven under the membrane by salt-laden air and wind. Before anyone climbs up, it helps to note the signs you can see yourself: blistering or lifting at the laps, cracks running along the parapet, damp patches on the ceiling below, and any ponding that stays after rain. These are the first things a technician checks because, near the coast, a membrane that has aged can let moisture in more quickly than it would further inland.

Much of the detail can only be settled at the site visit. The technician will need to walk the full roof, probe the membrane for soft or hollow areas, test the upstands and drains, and decide whether a repair, a patch, or a full bitumen membrane replacement makes more sense. The price for a bitumen membrane runs SAR 15–35 per m², but the real figure depends on the area measured on the day, the condition of the old layer, and whether insulation such as XPS boards at SAR 12–30 per m² is needed beneath it. Crack work priced at SAR 40–120 per metre may be added if movement lines are found. None of this can be fixed from a description alone, so a visit is the sensible next step.

To help the technician arrive prepared, note the roof area in square metres if you know it, the approximate age of the existing membrane, and when leaks were first noticed and whether they worsen after rain or sea-breeze days. Mention any previous repairs, any access limits such as a rooftop tank or solar panels, and whether the water appears at a fixed point. Photographs of the ceiling stains and the roof surface taken after a rainfall are very useful. Give the technician clear access to the roof and to the rooms below. With this information, the visit can focus on the causes rather than on guesswork.

Some signs can be watched for a few days; others need a technician straight away — the signs list above helps you decide.

Signs worth paying attention to

If you notice one of these signs in Alqunfudhah, it is a good moment to talk to the team:

• A flat concrete roof that needs waterproofing
• Old rolls that are cracking

The most common causes

• A common cause: no protection layer.
• A common cause: seams that were not welded properly.

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.

Facts and costs — Alqunfudhah

Short answers for Alqunfudhah

Common mistakes we see

• Leaving the membrane exposed without protection

The written outputs

The written output: photos of the welds and the flood-test result. The report is numbered and can be checked with its verification code.