Roof waterproofing in Riyadh: without breaking

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

Why roof waterproofing differs in Riyadh

Team note on Riyadh: 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.. Main roads in or near Riyadh: King Fahd Road, King Abdullah Road, King Abdullah.

The centre of Riyadh sits about 637 m above sea level (SRTM open elevation data).

Will my roof leak if I ask for work that doesn't involve breaking the existing finish? In Riyadh, many owners ask this before they commit to any roof project. The short answer is that the choice of system matters more than the idea of demolition. The centre of Riyadh sits about 637 m above sea level, and the open elevation data behind that figure is the reason we treat every roof as a site-specific job rather than a template. Liquid roof waterproofing is priced at SAR 10–25 per m², and bitumen membrane at SAR 15–35 per m², so the budget range for a roof alone is wide enough that the scope should be settled on site, not guessed from a brochure.

A visit to your property usually starts with a walk of the roof surface, looking for cracks, ponding areas, and the state of parapets, drains, and joints. Where cracks appear, crack injection is quoted at SAR 40–125 per metre, which is why the inspection measures the length of each crack rather than estimating it from the doorway. The inspector then checks which areas hold water after rain, since standing water is often what decides whether a liquid coating or a membrane is the better fit. If the same roof also serves a tank or a bathroom, those areas are assessed separately, with tank internal coating at SAR 25–65 per m² and bathroom waterproofing at SAR 15–40 per m² each treated as their own line item. The output is a written list of the defects found and the method proposed for each, so you can see what is being done before anything is applied.

To make the visit efficient, gather whatever documents you have about the roof, including any earlier waterproofing invoices, the warranty if one was issued, and notes on when leaks first appeared. Clear the access route to the roof and to any tank or basement, and tell the inspector where water has been seen inside the building, even if the spot is far from the roof itself. Note the rooms below the roof that were affected and any stains or smells you have noticed. Keep pets and children away from the roof during the inspection, and arrange for someone who knows the property to be present. With that information ready, the visit can focus on the work that matters and the proposal you receive will reflect your actual building.

The aim is to locate the cause with instruments first, so any opening is limited to one point.

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.
• A common cause: wrong falls towards the drains.
• A common cause: damaged waterproofing around tank and AC bases.

Tools we use in Riyadh

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.

Facts and costs — Riyadh

Common questions about roof waterproofing in Riyadh

What we advise against

• 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.