Roof waterproofing in Alqurayyat: before buying or handover

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

What is specific about Alqurayyat for roof waterproofing

Team note on Alqurayyat: 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 Alqurayyat sits about 497 m above sea level (SRTM open elevation data).

The centre of Alqurayyat sits about 497 m above sea level, according to SRTM open elevation data, and that elevation shapes how roofs here are checked before anyone signs a contract or accepts a handover. Start by looking at the roof's exposure to open sky and to the sun, since a high, open site is fully exposed to heat and occasional heavy rain. Ask the contractor which system they propose for the roof itself. Liquid roof waterproofing is priced at SAR 8–25 per m², bitumen membrane at SAR 15–35 per m², and XPS boards at SAR 12–30 per m², so compare quotes on the same system and the same area rather than on headline rates alone.

The rest is for the site visit, where a technician can judge things a checklist cannot. Walk the roof with the contractor and look for ponding, cracked parapets, and old patches that may have lifted. Crack injection, if needed, is priced at SAR 40–120 per metre, so measure the length of cracking and note where it runs. Check the drainage outlets and the junctions where the roof meets walls and rooftop tanks. If the building has a water tank on the roof, tank internal coating is quoted at SAR 25–60 per m², and that work is separate from the roof surface. Confirm whether the quote covers surface preparation, primer, and the final protective layer, because those steps are where cheap quotes often leave gaps.

Information that helps the technician makes the visit faster and the quote more accurate. Bring the age of the roof, any earlier repair records, and a note of where leaks have appeared inside the building, including after the last heavy rain. Give the measured roof area in square metres and any separate sections such as a stairwell roof or a terrace. If the bathrooms above the roof have had problems, mention that, because bathroom waterproofing is priced separately at SAR 15–40 per m² and is often linked to roof leaks. Keep the handover paperwork, including any warranty terms in writing, and ask the technician to state in the report exactly which areas were treated.

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

Signs that call for roof waterproofing

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

Tools we use in Alqurayyat

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 Alqurayyat

Questions from Alqurayyat

What we advise against

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

What you get after the work

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.