Bitumen membrane in Jazan: emergency

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

What is specific about Jazan for bitumen membrane

Team note on Jazan: 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.. Jazan is about 1.9 km from the sea coast (OpenStreetMap).

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

Is a leaking roof in Jazan an emergency, and how quickly can a bitumen membrane be put on? The centre of Jazan sits about 7 m above sea level, and the city is about 1.9 km from the sea coast. Those facts matter for a property owner because a roof that is exposed to the coastal air and to rain runoff needs fast attention, and a bitumen membrane is one of the options used to seal it. For planning, bitumen membrane is priced at SAR 15–35 per m², so the cost of a repair depends mostly on the roof area that needs covering.

When an inspection is arranged, the visit usually begins with a check of the roof surface and the edges where water has been finding its way in. The technician looks for cracks, blistering, lifted laps and damage around drains, parapets and roof penetrations. Where a crack runs along the surface, crack injection is priced at SAR 40–120 per metre, and that figure can help you estimate the cost of sealing a linear defect before the membrane is laid. If the roof is flat and the damage is widespread, the inspector will measure the affected area so that the membrane quantity and price can be set out clearly before any work starts.

Before the visit, gather the details the inspector will ask for. Note where the water appears inside the building, when it started, and whether it follows rain or occurs during dry weather as well. Take photographs of stains and of the roof surface, and clear loose debris from the roof and drains if it is safe to do so. Write down the approximate roof area in square metres, if you know it, so the estimate can be checked quickly. Keep access to the roof open and make sure someone who knows the property can meet the inspector. Being ready in this way lets the work begin sooner, which is what matters most when water is already entering the building.

If water is flowing, close the main valve first, then call or message with photos.

Signs worth paying attention to

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 — we check this before anything else.

Tools and methods, and when we use them

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.

Facts and costs — Jazan

Short answers for Jazan

Mistakes that cost more

• Leaving the membrane exposed without protection

The written outputs

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