Roof waterproofing in Al Shafa, Riyadh: emergency

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

What is specific about Al Shafa for roof waterproofing

The centre of Al Shafa is at 24.7969, 46.6401, about 9.9 km from the centre of Riyadh, with an approximate radius of 3 km. The service-area circle on the map below is drawn from this point. The nearest wadi channel is about 1.1 km from the centre of Al Shafa (OpenStreetMap).

Main roads in or near Al Shafa: King Fahd Road, Thumamah Road, King Abdulaziz Road. The centre of Al Shafa sits about 656 m above sea level (SRTM open elevation data).

Al Shafa is largely commercial, with shops and offices.

Al Shafa sits at 24.7969, 46.6401, roughly 9.9 km from the centre of Riyadh, with an approximate radius of 3 km. Its character is largely commercial, with shops and offices, so many roofs carry heavy foot traffic, rooftop plant and drainage that was never designed for constant wear. Al Shafa is also a practical base for emergency work because it is well placed for crews travelling in from the wider city, though the distance means a response from the central districts still needs to be planned rather than assumed.

Each of these facts shapes the job. The commercial mix means a leak can quickly affect stock, equipment and customers below, so our first step on a call is to isolate the water path and protect contents before the membrane is opened up. The centre sits about 656 m above sea level, and the nearest wadi channel is about 1.1 km away; during heavy rain, runoff that collects on flat commercial roofs can build quickly, so we check outlets, scuppers and upstands at the same visit to avoid a repeat failure. Liquid roof waterproofing is typically priced at SAR 10–25 per m², bitumen membrane at SAR 15–35 per m², and XPS boards at SAR 15–30 per m², and the right choice depends on access, the existing surface and how much of the roof is actually affected. Where a leak runs along a joint or parapet, crack injection at SAR 40–125 per metre is often the faster repair.

Owners in Al Shafa commonly make a few avoidable mistakes. They patch a visible leak without tracing where the water entered, so the problem returns a few metres away. They let ponding water sit on a flat roof rather than clearing outlets after storms. They cover a damp surface with a new coating, which traps moisture and causes blistering. They also wait until ceilings are stained before calling anyone, when a quicker inspection would have kept the damage small.

If water is flowing, close the main valve first, then call or message with photos.

Signs worth paying attention to

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

Causes we see in the field

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

How we choose the tool in Al Shafa

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 Al Shafa

Questions from Al Shafa

Common mistakes we see

• 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.