Bitumen membrane for residential buildings in Alqunfudhah

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

Bitumen membrane in Alqunfudhah: the local context

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).

Do you need a bitumen membrane on your roof in Alqunfudhah, and what will it cost? Alqunfudhah sits about 7 m above sea level, and its centre is about 0.4 km from the sea coast. That mix of low elevation and nearby coastline is why local owners ask how to keep rain and moisture out of their homes. For residential roofs, bitumen membrane is priced at SAR 15–35 per m², which gives owners a clear starting point before any work begins. Compare that figure with liquid roof waterproofing at SAR 8–25 per m² and XPS boards at SAR 12–30 per m² to see which system fits your roof and budget.

Before a bitumen membrane is recommended, the inspection starts with a walk across the full roof surface to look for cracks, ponding areas, blistering, and any spots where the existing covering has lifted. The inspector checks parapets, roof edges, and the points where pipes or fixtures pass through the surface, since these are common places for water to enter. Any cracks found along the structure can be treated separately with crack injection at SAR 40–120 per metre, so the inspector measures these lengths during the visit. Interior ceilings and walls below the roof are also checked for stains or damp patches, because these show where water has already travelled. The inspector then notes the roof area in square metres so the membrane can be priced accurately.

To make the visit useful, gather the information the inspector will ask for. Note when you first saw leaks or stains, and whether they appear after rain or during hot weather. Have any earlier waterproofing records, invoices, or warranty papers ready, along with photographs of problem areas if you have them. Clear the roof access route and tell the inspector if there are water tanks or rooftop units that need to be lifted or moved. If the building has a basement or bathroom issues as well, mention them now, since basement waterproofing is priced at SAR 50–150 per m² and bathroom waterproofing at SAR 15–40 per m², and the inspector can assess these in the same visit.

For a whole building, a survey of the shared systems comes before unit-by-unit work.

Signs worth paying attention to

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

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

Where the problem usually comes from

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

How we choose the tool in Alqunfudhah

The steps in order

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

Mistakes that cost more

• 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.