Bitumen membrane in Qatif: without breaking

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

Bitumen membrane in Qatif: the local context

Team note on Qatif: 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.. The centre of Qatif sits about 5 m above sea level (SRTM open elevation data).

Qatif is about 2.5 km from the sea coast (OpenStreetMap).

Is it possible to get a bitumen membrane on a roof or podium in Qatif without tearing up the finished surface above it? For many owners here, that is the first question, and the answer depends on how the site sits. The centre of Qatif sits about 5 m above sea level, and the town is about 2.5 km from the sea coast. Those facts matter because they shape how water moves across a roof and how it can work its way into a slab over time, so a membrane needs to be chosen and laid with that exposure in mind.

Bitumen membrane is priced at SAR 15–35 per m² for this kind of work. Before any material goes down, the inspection should check the existing surface for cracks, ponding areas, lifted edges and old membrane that has lost its grip. Where a crack is present, crack injection is priced at SAR 40–120 per metre and can be dealt with before the new layer goes on. If the roof is being compared with other options, liquid roof waterproofing sits at SAR 8–25 per m², and spray foam at SAR 20–45 per m², so the right choice depends on what the surface can take and what the owner wants to keep. The inspector will also confirm which areas are to be covered and measure them so the quote reflects the actual square metres involved.

Before the visit, it helps to clear access to the roof and to note any past leaks, including where they appeared inside the building and after which rains. Keep a record of earlier repairs, and say whether any tiles, pavers or fixtures sit on the roof, since those have to be lifted and refitted. Confirm who holds the keys to the roof hatch and whether there are any tenants or neighbours who need notice. Having these details ready lets the inspection move straight to the surface itself, so the membrane can be specified for the roof in Qatif rather than for a generic building.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

When do you need bitumen membrane?

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

• 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 — we check this before anything else.

How we choose the tool in Qatif

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 — Qatif

Short answers for Qatif

Mistakes that cost more

• Leaving the membrane exposed without protection

What you receive

The written output: photos of the welds and the flood-test result. The report is numbered and can be checked with its verification code.