Houses in desert regions often feature flat roofs due to a combination of factors related to climate, construction, and cost:

• Minimal Surface Area: Flat roofs have less surface area exposed to the intense desert sun compared to pitched roofs. This helps to reduce heat absorption into the building.

• Efficient Use of Space: Flat roofs can be used as additional living or storage space. This can be particularly useful in areas where land is scarce or expensive.

• Water Collection: In arid climates, collecting rainwater is a valuable practice. Flat roofs are ideal for water harvesting systems because they allow water to easily flow into collection drains.

• Simple Construction: Flat roofs are generally easier and cheaper to construct than pitched roofs, which require more materials and labor. The simplicity of a flat roof structure can be advantageous in regions where resources are limited.

• Wind Resistance: In some desert areas, high winds are common. Flat roofs, when properly constructed, can be more resistant to wind damage than some types of pitched roofs.

• Traditional Design: In many desert regions, flat roofs are a traditional architectural style that has been used for centuries due to their practicality and suitability to the climate.

It's important to note that modern construction techniques and materials can also influence roof design. While flat roofs are common, newer homes may incorporate pitched roofs with specific insulation and ventilation systems to manage heat effectively.