3 minutes reading time
The summer of 2024 decided to just cook us alive. March, April, and May were a brutal, unending heatwave that apparently touched 42 degrees Celsius out here. This is the arid belt. The driest, dustiest part of the Coimbatore zone, out near Sultanpet and Sulur. The air feels like it wants to peel your skin off.
It was so impossibly hot that I decided to do a small project just to preserve my sanity. I tried the usual bandaids. An air cooler? It kinda works, decent enough if you're directly in front of it. A misting fan? Absolutely awful. It just makes the indoors too humid, turning the room into a warm, suffocating swamp.
The real enemy wasn't just the air. It was the roof. Most of these houses have traditional red terracotta tiles—the classic Mangalore or Calicut tiles—arranged in neat little overlapping rows. They look charming, but by 2 PM they absorb the sun and radiate pure, unadulterated heat straight down into the house. It's like living inside a clay oven.
So I wanted to attack the problem at the source. Cool the roof.
I set up a system to spray a very fine mist directly onto those red roof tiles. They are actually a little bit porous, which is perfect. The sun hits the mist, evaporates the water, and pulls the heat right out of the terracotta. It is basic evaporative cooling. Then I just turned on the regular ceiling fans that every house already has.
And it actually worked. Really well. I didn't measure the exact temperature drop with any fancy thermometers, but it felt so much better. The inside of the house went from a baking nightmare to something genuinely livable. The tiles got real nice and cool.
I only ran the mist during the absolute peak of the sun. The nights out here were actually getting quite cold, so there was no need to waste it in the dark.
And yes, it used up some water. I know that might not be the most ecologically pure method in a dry region. But you tell me if it was good or bad. Because frankly, the real villains here are the local fuckers who chopped down all the massive old trees to plant endless monoculture cash crops. They wiped out the natural canopy. If they just had more trees, we wouldn't need pumps and misting nozzles. We could just sit under the shade like normal human beings used to do. Or maybe I am wrong. I hear that we have had similar or worse heat several decades ago too.