Bitumen membrane in Alqunfudhah: for companies (annual contract)

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

What is specific about Alqunfudhah for bitumen membrane

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 is a coastal town, and the first thing a technician checks on a bitumen membrane job here is the ground and water situation around the building. The centre of Alqunfudhah sits about 7 m above sea level, and the town is about 0.4 km from the sea coast, so salty air and a high water table are real considerations for a roof or basement deck. Before any quote is firmed up for a company contract, the crew confirms the substrate is sound, dry enough to take the membrane, and free of old ponding areas where water has been sitting. The bitumen membrane itself is priced at SAR 15–35 per m², and that range reflects how much preparation and how many layers the surface needs, so the first check is the existing condition rather than the area alone.

Several points are left to the site visit, because they depend on what is physically in front of the technician. These include the actual slope and drainage of the roof, the number and location of outlets, parapet heights, the condition of any existing felt or coating, and whether the work sits alongside other elements such as basement walls or a water tank. Where a basement or a tank is involved, the rates are different: basement waterproofing is SAR 50–150 per m², and tank internal coating is SAR 25–60 per m². Crack injection, if needed, is priced per metre at SAR 40–120 per m. A visit confirms which of these apply to the company's buildings and whether the bitumen membrane should be paired with insulation. Where XPS boards are considered, the range is SAR 12–30 per m², and the decision is made on site, not in advance.

For the technician, it helps to have a short list ready before the visit: a plan of each roof or deck with its approximate area, notes on any leaks or staining seen in the last year, the age of the existing waterproofing, and access arrangements for the building. Knowing which areas are in regular use, such as plant rooms or car parks, also helps plan the work around the company's operations. With that information in hand, the technician can match the scope to the annual contract and check each area against the facts above. Please bring any previous maintenance records as well, since they show where problems have repeated and which sections deserve closer attention.

For companies, an annual contract sets the scope, the visit schedule and the reports in writing.

When do you need bitumen membrane?

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

Tools we use in Alqunfudhah

How the work is done, step by step

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

Questions from Alqunfudhah

What we advise against

• 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.