Can metal ceilings reflect heat better than plasterboard?

Yes, metal ceilings, particularly those with light-colored or reflective finishes, are significantly more effective at reflecting heat than standard plasterboard. This is a crucial advantage in the sun-drenched climates of the Gulf region. Plasterboard tends to absorb and retain radiant heat that penetrates the roof, gradually releasing it into the room below and increasing the load on air conditioning systems. Aluminum, on the other hand, has a naturally high thermal reflectivity. When treated with specific coatings, its surface can reflect a significant percentage of radiant heat away from the living or working space. This thermal barrier effect helps to keep the interior environment cooler and more comfortable. By reducing heat gain through the ceiling, the demand on HVAC systems is lowered, leading to substantial energy savings and reduced electricity bills over the building's lifetime—a key benefit for property owners in countries like Saudi Arabia and the UAE.