Roof waterproofing for apartments in Aldiriyah

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

Roof waterproofing in Aldiriyah: the local context

Team note on Aldiriyah: 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 Aldiriyah sits about 655 m above sea level (SRTM open elevation data).

Roof waterproofing in Aldiriyah starts with a check of the roof surface itself, because the first question for any apartment roof is whether the existing coating is still holding. The centre of Aldiriyah sits about 655 m above sea level, so the technician will look at how the roof is exposed to sun and wind before deciding which system suits the building. Liquid roof waterproofing typically falls in the range of SAR 8–25 per m², while bitumen membrane runs SAR 15–35 per m², and the choice between them depends on what the existing surface can take. Where cracks are present, crack injection is priced at SAR 40–120 per metre, so the technician will measure the length of any crack before quoting.

Some points are left to the site visit, because they cannot be judged from a description alone. The technician will need to see whether water is already entering the apartment below, which areas of the roof pond after rain, and whether there are parapets, drains or rooftop tanks that affect the layout. A rooftop tank adds a separate item, since tank internal coating is priced at SAR 25–60 per m², and the technician will check whether that work is needed. Spray foam, at SAR 20–45 per m², and XPS boards, at SAR 12–30 per m², are also options that are only chosen after the roof is inspected in person.

To help the technician, it is useful to note the age of the roof, any earlier repairs, and whether the apartment has a bathroom or basement that shares the same water path. Bathroom waterproofing is priced at SAR 15–40 per m², and basement waterproofing at SAR 50–150 per m², so knowing which areas are in scope saves time. Please also mention any leaks you have noticed, the rooms they affect, and when they appear, such as only during heavy rain. A clear description of these details lets the technician arrive prepared and give a more accurate estimate for your apartment.

In apartment buildings, the floor below is often where a leak shows first.

Signs worth paying attention to

These are the signs most often linked to roof waterproofing:

• Water pooling on the roof
• Stains on the top-floor ceiling after rain
• The old waterproofing is cracking

The most common causes

• A common cause: wrong falls towards the drains.
• Damaged waterproofing around tank and AC bases — we check this before anything else.
• Cracks in the roof slab — we check this before anything else.

How we choose the tool in Aldiriyah

The steps in order

1. Survey: Falls, drains and the condition of the old layer are recorded.
2. Preparation: Cleaning and repairs before any new layer.
3. Primer: The base coat that the system needs.
4. Waterproofing layers and details: Corners, upstands and bases get their own detail.
5. Flood test: The roof is flooded and checked before it is covered.

Quick comparison: facts and costs in Aldiriyah

Common questions about roof waterproofing in Aldiriyah

Mistakes that cost more

• Ignoring the tank bases
• Covering the waterproofing before the flood test

What you receive

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