Summer is in full power here in Kerala, India. Concrete radiating heat and rooms are hot even at night.
Have seen people mention things like blackout curtains, reflective or white paint on the roof etc.
Have upped hydration and am now sleeping with windows open, with a mat on the floor.
What all things do the people in your locality do? Or if you have any specific insight into cost-effective techniques or so, could you kindly share them?
Thanks in advance


If your home isn’t well adapted to reject heat, you can use tinfoil to reflect the sun. It’s cheap and incredibly efficient at keeping heat out. It doesn’t look very nice but it works a treat. Just remember if you are covering windows (with anything) that the cover has to be on the outside otherwise some heat will still make it in.