Roof waterproofing for warehouses in Al Azyzya, Riyadh

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

Roof waterproofing in Al Azyzya: the local context

The centre of Al Azyzya is at 24.5877, 46.7701, about 17 km from the centre of Riyadh, with an approximate radius of 3 km. The approximate area shown on the map is centred here. Main roads in or near Al Azyzya: Southern Ring Road, Southern Ring Road, Al-Kharj.

The centre of Al Azyzya sits about 589 m above sea level (SRTM open elevation data).

What should a warehouse owner in Al Azyzya check on the roof before the rains arrive? A leak that starts in a single corner can quietly spread across stored stock, so the sensible first step is a proper look at the roof covering. Al Azyzya sits at 24.5877, 46.7701, about 17 km from the centre of Riyadh, within an approximate radius of 3 km. Its centre lies about 589 m above sea level, according to SRTM open elevation data. For a flat or low-pitched warehouse roof, the usual answer is to match the waterproofing system to the roof's condition and size. Liquid roof waterproofing is priced at SAR 10–25 per m², a bitumen membrane at SAR 15–35 per m², and spray foam at SAR 20–45 per m². Crack injection, where the damage is in a few lines rather than across the whole deck, is charged at SAR 40–125 per metre.

The inspection usually starts with a walk over the full roof to note ponding areas, blistered or lifted sheets, and the condition of joints and upstands around vents and skylights. The technician then checks the points where water is most likely to enter, including drains, outlets and wall junctions, and marks any cracks so their length can be measured for pricing. Where the roof has a rooftop water tank, the inside of that tank can also be assessed, since tank internal coating is quoted separately at SAR 25–65 per m². Any signs of moisture on the ceiling below, such as stains or damp patches on walls near the roof edge, are recorded to help trace the source. The inspection notes then form the basis of a written scope, so the owner can compare the options before any work is agreed.

Before the visit, gather the building's basic details: the roof area in square metres, the roof type and age if known, and any previous repair records or waterproofing warranties. Note where leaks have appeared, when they happen, and whether they follow heavy rain or occur in dry weather as well. Clear access to the roof and the stairs or ladder leading to it, and tell the team about any stored goods or equipment that must be moved. Having the building's access points and key contact available on the day keeps the inspection short and focused. A clear record of what has already been seen makes it far easier to decide between a targeted crack repair and full roof coverage.

For warehouses, work is phased around operations and stored goods.

When do you need roof waterproofing?

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

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

The most common causes

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

Tools we use in Al Azyzya

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.

Quick comparison: facts and costs in Al Azyzya

Short answers for Al Azyzya

Mistakes that cost more

• 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.