Roof waterproofing in Aldiriyah: before buying or handover

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

Before we start: what we know about Aldiriyah

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).

Is it worth checking the roof before you buy a home in Aldiriyah, or before you take over a property from a previous owner? Yes, and the timing matters. The centre of Aldiriyah sits about 655 m above sea level, so the roof is exposed to a different set of conditions than many residents expect, and a leak found after handover is harder to fix than one found during the visit. For roof work, liquid roof waterproofing typically costs SAR 8–25 per m², while a bitumen membrane runs SAR 15–35 per m², so the choice of system affects both the budget and the expected service life.

Start the inspection from the outside. Walk the full roof surface and look for cracks, blistering, lifted edges and any areas where the coating has worn thin or pulled away from parapets and drains. Pay close attention to joints and corners, since these are where water usually gets in first. Check the upstand walls and the flashing where the roof meets the wall. Then move indoors, look at the ceilings directly below the roof for stains, bubbling paint or damp patches, and inspect the top floor walls for signs of moisture. If the property has a water tank on the roof, check its condition too. Tank internal coating is priced at SAR 25–60 per m², so a tank that needs recoating is a cost to factor into your offer. Where cracks show up in the structure, crack injection is quoted at SAR 40–120 per metre, which is another figure worth having in mind during negotiations.

Before the visit, gather the documents and information that will make the inspection more useful. Ask the seller or landlord for any previous waterproofing records, warranties, and details of past repairs, including the materials used. Note the dates of any leaks you have heard about and which rooms they affected. Clear access to the roof, the water tank and the top-floor ceilings, and arrange for someone to be present who knows the property. Bring a notebook or a phone to photograph anything unusual, and take photos before and after the visit so you can compare them later. With this preparation, the inspection will give you a clear picture of the roof's condition and a sound basis for your decision.

Before buying or taking over a property, an inspection gives you findings in writing before you sign.

Signs worth paying attention to

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

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

Causes we see in the field

• Wrong falls towards the drains.
• A common cause: damaged waterproofing around tank and AC bases.
• 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.

Aldiriyah in facts and sources

Questions from Aldiriyah

What we advise against

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

The written outputs

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