In hot weather, a sun-exposed roof can transfer heat into rooms below. Reflective roof coatings are designed to reflect more sunlight and reduce heat absorption when applied to a suitable, properly prepared surface.
Check the roof condition first
Repair active leaks, loose coatings and drainage issues before adding a heat-reflective layer. The coating must be compatible with the roof and applied at the specified coverage and thickness.
Set realistic expectations
Indoor comfort also depends on insulation, ventilation, windows, room orientation and air-conditioning use. A roof coating can be one part of a broader heat-management plan; the result varies by building.
Read more about roof heat proofing in Karachi and request advice for your roof type.