Bitumen membrane in Jubail: emergency

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

Why bitumen membrane differs in Jubail

The centre of Jubail sits about 4 m above sea level (SRTM open elevation data). Jubail is about 0.9 km from the sea coast (OpenStreetMap).

Team note on Jubail: 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..

Is a leaking roof in Jubail something that can wait until the weekend? For most property owners here, the honest answer is no, especially when water is already getting into a room. Jubail's centre sits about 4 m above sea level, and the coast is only about 0.9 km away, so homes here are exposed to salty, humid air that can speed up the breakdown of old roof coverings. A bitumen membrane is one of the common systems used on flat roofs in this area, and it typically costs SAR 15–35 per m². When water is entering the building, that price range matters less than how quickly the leak is stopped.

When an emergency call comes in, the first step is a site inspection to find where the water is actually coming from. The team looks at the roof surface for splits, lifted edges, blistering and ponding, and checks upstands and drainage points, since water often travels some distance before it appears on a ceiling. Where the damage is in a narrow line, such as a crack in a concrete slab or a seam, crack injection is priced per metre at SAR 40–120 per m, and the inspector will note the length involved. For wider areas, the inspector measures the affected surface in square metres so the repair can be scoped properly. The aim of this visit is to separate a quick, contained fix from a larger job, and to explain each option before any work begins.

To make the visit as productive as possible, prepare a few details in advance. Note when the leak was first noticed, whether it follows heavy rain or appears in dry weather, and which rooms or ceilings are affected. Clear access to the roof and to the area below, and move furniture, electrical items and stored goods away from wet patches. If you have any previous waterproofing records or photographs of the roof, have them ready, as they help show what was installed and when. Keeping these notes together lets the inspector focus on the cause of the leak rather than spending the visit gathering basic information.

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

Signs worth paying attention to

These are the signs most often linked to bitumen membrane:

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

Where the problem usually comes from

• A common cause: no protection layer.
• Seams that were not welded properly — we check this before anything else.

How we choose the tool in Jubail

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.

Jubail in facts and sources

Common questions about bitumen membrane in Jubail

What we advise against

• Leaving the membrane exposed without protection

What you get after the work

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