Roof thermal insulation for apartments in Al Azyzya, Riyadh

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

What is specific about Al Azyzya for roof thermal insulation

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

Main roads in or near Al Azyzya: Southern Ring Road, Southern Ring Road, Al-Kharj.

Do roof thermal insulation options in Al Azyzya differ much in cost, and how do you know which one suits your apartment building? The answer depends on the roof's condition and the work it needs. Al Azyzya sits at 24.5877, 46.7701, about 17 km from the centre of Riyadh, with an approximate radius of 3 km. The centre of the district sits about 589 m above sea level, according to SRTM open elevation data. For roof work, the facts show a clear price spread. Spray foam costs SAR 20–45 per m², XPS boards cost SAR 15–30 per m², and bitumen membrane costs SAR 15–35 per m². Liquid roof waterproofing costs SAR 10–25 per m², while crack injection costs SAR 40–125 per metre. Owners of several flats sharing one roof should compare these rates against the actual area and condition of their slab.

Before any work starts, a site inspection follows a set order. The inspector first checks the roof surface for cracks, ponding and worn coatings, and measures the total roof area in square metres so that quotes can be compared on the same basis. Where cracks are visible, the crack length is measured in metres, since injection is priced per metre. The inspector then looks at the roof's connections to parapets, drains and water tanks, because these joints are common leak points. Finally, the inspector recommends one or more options, such as a liquid coating, a bitumen membrane or an XPS board layer, based on what the roof needs rather than on a single fixed package.

To prepare for the visit, the property owner should gather the building's plans or any earlier roof records, and note any past leaks, damp patches or repairs inside the top-floor flats. Clear access to the roof, including the stairwell or hatch, saves time on the day. It also helps to know whether water tanks sit on the roof, because a tank internal coating is priced separately at SAR 25–65 per m². Having these details ready lets the inspector give a clear, comparable estimate for your building.

In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.

Signs worth paying attention to

These are the signs most often linked to roof thermal insulation:

• Strong heat on the top floor
• The AC runs for long hours in summer
• The ceiling stays hot at night

Causes we see in the field

• Old insulation that has deteriorated — we check this before anything else.
• No thermal insulation under the roof protection.

Tools we use in Al Azyzya

How the work is done, step by step

1. Thermal survey: Hot areas of the roof are mapped.
2. Choosing the system: The material and thickness are agreed in the quote.
3. Installation: The layer is installed and protected.
4. Measurement and documentation: Thickness is measured at spread-out points.

Facts and costs — Al Azyzya

Short answers for Al Azyzya

Common mistakes we see

• Relying on reflective paint alone on an uninsulated roof

The written outputs

The written output: the documented thickness, materials and batch numbers. The report is numbered and can be checked with its verification code.