Top-floor flats often suffer the most during summer because the roof above them absorbs heat all day and slowly releases it downwards. Reflective roof coatings are one way to reduce this problem.
These coatings are usually light-coloured or specially formulated to reflect more sunlight instead of absorbing it. By bouncing a portion of the heat away, they help keep the roof surface cooler.
A cooler roof means less heat radiating into your ceiling and rooms. While it won’t turn your flat into an AC hall, it can noticeably reduce how intensely the heat builds up, especially in the afternoons.
Proper application matters: the surface should be cleaned, cracks repaired, and instructions followed regarding number of coats and drying times.
When combined with other measures—like insulating false ceilings, using thick curtains, and managing cross-ventilation—reflective coatings become part of an overall cooling strategy.
For top-floor residents, even a few degrees less can improve comfort and reduce AC use.
