On a typical summer afternoon in cities like Delhi, Ahmedabad, Nagpur, or Kolkata, concrete buildings feel like they are soaking up the sun and holding onto it long after sunset. Rooftops turn scorching, top-floor rooms become difficult to stay in, and even fans appear to struggle. In many urban homes, especially in dense neighbourhoods, heat does not just come from outside; it gets trapped within the walls.

This is where eco-friendly wall coatings designed to reduce heat absorption are changing how buildings respond to rising temperatures.

What these coatings do

Heat-reflective wall coatings are designed to reduce the amount of solar heat a building absorbs. Instead of letting walls soak up sunlight and slowly release heat indoors, these coatings reflect a massive portion of radiation into the environment.

They are not just paints in the usual sense. They are formulated using reflective pigments, insulating materials, or mineral-based compounds that change how a surface interacts with sunlight. The result is a noticeable reduction in surface temperature and, in turn, cooler indoor spaces.

The potential of white coating

Long before modern coatings entered the market, Indian homes already used one of the most effective heat-reducing solutions,........

© The Better India