Roof thermal insulation for villas in Al Aard, Riyadh

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

Before we start: what we know about Al Aard

The centre of Al Aard is at 24.8935, 46.6060, about 21.2 km from the centre of Riyadh, with an approximate radius of 8 km. The approximate area shown on the map is centred here. Main roads in or near Al Aard: King Fahd Road, King Abdulaziz Road, Abu Bakr Al Siddiq Road.

The centre of Al Aard sits about 671 m above sea level (SRTM open elevation data). The nearest wadi channel is about 1 km from the centre of Al Aard (OpenStreetMap).

Picture a family that has owned a villa in Al Aard for several years. The upper floor is hot by early afternoon, the air conditioning runs hard through the long summer months, and the bedrooms closest to the roof never quite feel comfortable. They want the heat to stop coming through the ceiling, and they want the work done once and done properly, without disrupting the household more than necessary.

Al Aard sits at about 671 m above sea level, roughly 21.2 km from the centre of Riyadh, with its centre at 24.8935, 46.6060. The nearest wadi channel runs about 1 km from the centre of the area, which matters for roofs because heavy rain that runs off a flat surface and into low ground can carry debris and loosen weak coatings over time. Because the property sits within an approximate radius of 8 km of its centre, many villas share similar exposure to sun and dust, so the same roof problems tend to appear across neighbouring homes. For an owner, this means the roof should be treated as a single system: the insulation layer, the waterproofing above it and the drainage around it all work together.

The sensible sequence starts with an inspection of the existing roof to find cracks, ponding areas and worn sealant. Next, choose the insulation: XPS boards, priced at SAR 15–30 per m², give a firm thermal layer under the waterproofing. Then address the waterproofing itself, where liquid roof waterproofing at SAR 10–25 per m² or a bitumen membrane at SAR 15–35 per m² are common options. Any cracks should be dealt with first through crack injection, at SAR 40–125 per m, so the surface is sound before coating. Finally, check that the roof slopes toward proper outlets, and confirm the finished work with a walk-through and a written note of what was done.

In a villa, tanks, the roof and the yard lines are usually yours to look after, so it helps to know where the main valve and tank hatches are.

When do you need roof thermal insulation?

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

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

Where the problem usually comes from

• Old insulation that has deteriorated — we check this before anything else.
• A common cause: no thermal insulation under the roof protection.

Tools and methods, and when we use them

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.

Quick comparison: facts and costs in Al Aard

Short answers for Al Aard

What we advise against

• Relying on reflective paint alone on an uninsulated roof

What you get after the work

You receive: the documented thickness, materials and batch numbers, in a technical report with a verification code.