Bitumen membrane for hotels & serviced apartments in Khafji

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

Why bitumen membrane differs in Khafji

The centre of Khafji sits about 9 m above sea level (SRTM open elevation data). Khafji is about 2 km from the sea coast (OpenStreetMap).

Team note on Khafji: 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.. Main roads in or near Khafji: King Abdullah Road.

Does a hotel or serviced apartment building in Khafji really need a bitumen membrane on its roof, and what does that cost? Khafji sits about 9 m above sea level, and its centre is roughly 2 km from the sea coast. That mix of low elevation and coastal exposure means rooftops and terraces here take a steady beating from salt-laden air and wind-driven rain, so owners often want a roof system that holds up through repeated seasons. Bitumen membrane for roofs in this setting is priced at SAR 15–35 per m², which gives property owners a clear budget range to plan around before any work begins.

Before quoting, the inspection starts on the roof itself. The inspector walks the full area and marks any ponding, cracked screeds, lifted edges, and failed sealant around parapets, drains, and rooftop fixtures. Where the roof has existing coatings, the inspector checks whether they are bonded firmly or peeling, since that decides whether the bitumen membrane can go over them or must be removed first. Upstands and corners are examined closely because they are the most common leak points in hotels and serviced apartments. If cracks appear in the concrete below the membrane line, the inspector notes them separately, because crack injection is priced at SAR 40–120 per metre and is a different job from roof sealing. The inspection ends with a written list of the areas that need work and the measured m² for each.

To make the visit useful, the owner should prepare a few things in advance. Gather any previous waterproofing records, warranty papers, and maintenance logs for the roof so the inspector can see what was done before and when. Clear access to the roof hatch, stairs, and rooftop plant, and make sure water tanks, satellite equipment, and air conditioning units are either accessible or labelled for relocation. Note any recurring leaks in guest rooms or apartments, including the date and room number, because those spots help the inspector trace water back to its source. Finally, confirm which floors are occupied during work, since bitumen application produces odour and requires the roof to be clear of guests and staff for safe working.

For hotels and serviced apartments, rooms are handled in batches to keep units available.

Signs worth paying attention to

The following signs are worth checking before they grow:

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

Causes we see in the field

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

How we choose the tool in Khafji

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.

Facts and costs — Khafji

Questions from Khafji

What we advise against

• Leaving the membrane exposed without protection

What you receive

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