Roof waterproofing for hotels & serviced apartments in Alhait

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

What is specific about Alhait for roof waterproofing

The centre of Alhait sits about 980 m above sea level (SRTM open elevation data).

Alhait sits at about 980 m above sea level, which gives the town a dry, elevated character with sharp temperature swings between day and night. For a hotel or serviced apartment roof, that means the membrane is repeatedly heated by strong sun and then cooled quickly, so expansion and contraction work the surface all year. Our roof work in Alhait is planned around that daily cycle, with surface preparation and product choice matched to the thermal stress the roof will actually face rather than a generic lowland specification.

Each of the local conditions links to a practical decision. Because the centre is at about 980 m, the roof sees strong solar exposure and wide temperature changes, so we favour flexible liquid roof waterproofing and bitumen membrane systems that tolerate movement, and we pay close attention to upstands and drainage outlets where water collects. Liquid roof waterproofing is priced from SAR 8–25 per m², while bitumen membrane runs SAR 15–35 per m², and the right choice depends on the roof's slope, access and how many guest rooms sit below. For roofs that also feed water tanks or sit above bathrooms, tank internal coating at SAR 25–60 per m² and bathroom waterproofing at SAR 15–40 per m² can be scoped in the same visit, so that rooftop works and wet-area protection do not get handled separately and missed.

Owners in Alhait commonly make a few avoidable mistakes. The first is treating the roof as a one-off cosmetic job and skipping a proper survey of cracks, which can be sealed by crack injection at SAR 40–120 per metre before any coating goes down. The second is applying a coating over a damp or dusty surface, which weakens adhesion and shortens service life. The third is ignoring insulation: XPS boards at SAR 12–30 per m² can reduce heat gain into guest rooms, which matters in a place where afternoons are hot and nights are cool. Planning these steps early keeps guest comfort high and avoids repeat work on the same roof.

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

When do you need roof waterproofing?

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

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

Where the problem usually comes from

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

Tools and methods, and when we use them

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 — Alhait

Questions from Alhait

Mistakes that cost more

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

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.