Roof waterproofing for hotels & serviced apartments in Unaizah

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

What is specific about Unaizah for roof waterproofing

Team note on Unaizah: 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 Unaizah sits about 667 m above sea level (SRTM open elevation data).

Roof leaks are the most common problem for hotels and serviced apartments in Unaizah, and they are often discovered only after guests complain about damp ceilings or stains on upper-floor rooms. On flat roofs that carry guest rooms, water usually finds its way in at parapets, drains, and joints where the membrane has aged or been punctured by rooftop equipment. Because a leak on the roof often shows up several floors below, the damage is easy to miss until it is extensive.

Unaizah sits at roughly 667 m above sea level, which matters for how a roof is treated. At this elevation, the roof is exposed to strong sun during the day and sharp temperature drops at night, so the surface expands and contracts every day. This movement opens hairline cracks and lifts the edges of membranes over time. For that reason, a roof system here needs flexibility as well as a waterproof barrier. Liquid roof waterproofing, priced at SAR 10–25 per m², and bitumen membrane, priced at SAR 15–35 per m², are two common options, and the choice depends on the roof's condition, the slope, and how much time the property can spare without occupied rooms below. Where insulation is also needed, XPS boards at SAR 10–30 per m² can be added as part of the same job.

Before booking a visit, ask the provider to confirm which system they recommend for your roof and why, and request that the inspection includes drains, parapets, and any penetrations for air conditioning units or water tanks. Ask how they will handle cracks, and whether crack injection, charged at SAR 40–115 per metre, is included in the quote. Clarify how much access they need to occupied floors, and ask for the quote to list the area measured in square metres so you can compare it against other offers. Finally, ask what the warranty covers and how the work will be scheduled around guests and staff.

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

Signs worth paying attention to

If you notice one of these signs in Unaizah, 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.
• Damaged waterproofing around tank and AC bases.
• A common cause: cracks in the roof slab.

Tools we use in Unaizah

From the first visit to the report

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.

Facts and costs — Unaizah

Short answers for Unaizah

Mistakes that cost more

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

What you get after the work

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