Roof waterproofing in Ahad Almasarihah: preventive periodic check

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

Before we start: what we know about Ahad Almasarihah

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

The centre of Ahad Almasarihah sits about 667 m above sea level, according to SRTM open elevation data. That elevation matters for roofs here. Higher ground tends to mean more direct exposure to wind and sun, and the surface of a roof can heat and cool sharply over a day. For owners, that daily movement is one of the main reasons a roof membrane begins to crack or lift at the seams, so a preventive check each year is more useful than waiting for a leak to appear inside the home.

Because the area's ground and roofs face these conditions, the service is planned around the roof surface first. 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. Each option suits a different roof type, so the inspection looks at the existing covering, the slope, and any ponding before a method is chosen. Where a roof meets a wall or a drain, crack injection, priced at SAR 40–120 per metre, is often the practical fix, because small splits at those joints are where water usually enters first.

Owners in Ahad Almasarihah tend to avoid a few common mistakes, and the check is designed around them. The first is leaving a small crack unsealed until it spreads across the roof. The second is coating a roof without first cleaning away dust and old loose material, which stops the new layer from bonding. The third is ignoring the tank and bathroom areas above the roof line, where leaks are often blamed on the roof itself. A periodic check catches these problems early, when repairs are simpler and the cost stays within the ranges listed above.

Preventive checks follow a written schedule instead of waiting for a fault.

When do you need roof waterproofing?

The following signs are worth checking before they grow:

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

Where the problem usually comes from

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

Tools we use in Ahad Almasarihah

How the work is done, step by step

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 Ahad Almasarihah

Questions from Ahad Almasarihah

Common mistakes we see

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

What you receive

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