I feel sorry for you.

Thats a tough nut to crack. You can replace the normal tint with higher quality reflective tint, subject to your JMB rules, but its not only the windows that is the problem........ Blackout curtains is a must.

The walls will also radiate heat all night long after being heated up in the day.


What you can do is to try to cool the room down before you come back. Install a timer equipped ventilation fan in the bathroom to turn on and vent the room before you get back...so your aircon wont have to work extra hard to cool the room down. However that works best if you can leave your windows open a crack to allow for crossflow, so the vent fan can actually properly work.

This post has been edited by jaycee1: Nov 7 2022, 03:28 PM

That's the point I was trying to make. Use the vent fan in the bathroom, crack open the windows, and close your bedroom door.

Your bathroom vent fan will suck out the hot built-up air through your windows and out the bathroom.

I do that with mine, at it gets hot with the evening sun. I am just too lazy to install a smart timer to control that bathroom vent fan, so I just switch it on when I get back.

Yes, if you intend to vent the room like I do. Look above.

your JMB don't allow reflective / high IR film? Do open the windows if you can but at the risk of rain coming in when you are not in.