Bitumen membrane for hotels & serviced apartments in Aldarb

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

Bitumen membrane in Aldarb: the local context

The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Aldarb is about 18.7 km from the sea coast (OpenStreetMap).

Do you need to know what a bitumen membrane will cost for a hotel or serviced apartment building in Aldarb? The centre of Aldarb sits about 79 m above sea level, and the town is about 18.7 km from the sea coast. Bitumen membrane work here is priced at SAR 15–35 per m², which is a useful starting range for roof and wall budgeting. Owners should keep in mind that the price depends on the surface, its condition and access, so the final figure comes only after an inspection.

The inspection begins with a walk over the roof, podium, or other exposed surfaces to check for ponding, lifted laps, cracks and failed old coatings. Where cracks appear in concrete, the crew measures their length, because crack injection is priced per metre at SAR 40–120 per m. Adjacent areas such as basements, bathrooms and water tanks are noted separately, since each is priced on its own basis. For example, basement waterproofing sits at SAR 50–150 per m² and tank internal coating at SAR 25–60 per m², so each zone is recorded and measured before a quote is drawn up. The technician also checks the area of each surface so that the quote reflects real measurements rather than estimates.

Before the visit, the property owner should gather a few details that speed up the assessment. Prepare a roof or floor plan with dimensions, and note any areas that leak after rain, including the location of stains inside the building. Share the age of the existing waterproofing, if known, and any past repairs. Confirm access arrangements for guest floors, since occupied hotel rooms and apartments may need notice. If the building uses liquid roof waterproofing at SAR 8–25 per m² or XPS insulation boards at SAR 12–30 per m² on other sections, record those too, so the inspection covers the whole system rather than one surface alone.

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

When do you need bitumen membrane?

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

• No protection layer.
• Seams that were not welded properly — we check this before anything else.

How we choose the tool in Aldarb

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.

Quick comparison: facts and costs in Aldarb

Common questions about bitumen membrane in Aldarb

What we advise against

• 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.