Bitumen membrane for restaurants in Alnuayriyah

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

What is specific about Alnuayriyah for bitumen membrane

Team note on Alnuayriyah: 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 Alnuayriyah: King Abdulaziz Road.

The centre of Alnuayriyah sits about 49 m above sea level (SRTM open elevation data).

Restaurants in Alnuayriyah most often face leaks on flat roofs, where kitchen extraction units, air conditioning plant and foot traffic from staff wear down the surface over time. Water that gets under a roof can soak into the dining room ceiling and the kitchen storage above, and a stain that appears on the inside is usually a sign that the damage has been spreading for some time. A bitumen membrane is a common choice for this kind of roof because it forms a continuous layer that bridges small movements in the structure, and the typical cost quoted for this work is SAR 15–35 per m². Because a restaurant roof is often large and cannot be closed for long, the layout of the work matters as much as the material.

The centre of Alnuayriyah sits about 49 m above sea level, which tells us the area is not a low-lying basin where rainwater gathers from every side. Still, a roof here must shed water quickly and drain it properly through outlets that are kept clear of grease and debris, since a restaurant roof collects far more residue than a home roof does. The approach taken should therefore start with the drainage points and the upstands around plant units, not just the open roof area. Where the roof surface is cracked rather than worn, crack injection at SAR 40–120 per metre can be used to seal defined lines before the membrane goes down, and the bitumen layer is then laid over a clean, dry base.

Before the visit, it helps to know a few things about the building. Ask how many years the roof has been in use, whether any previous repairs were done, and where the water has been seen inside. Tell the team which parts of the roof carry heavy equipment, whether there is a rooftop seating area, and when the restaurant is quietest, since this shapes the work schedule. Ask whether the existing surface is to be removed or covered, and request a written breakdown of the area in square metres so the quote can be compared line by line.

For restaurants, visits are planned outside service hours and recorded for the premises file.

When do you need bitumen membrane?

The following signs are worth checking before they grow:

• 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.

Facts and costs — Alnuayriyah

Questions from Alnuayriyah

Mistakes that cost more

• 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.