hello all, want some advice on my masterbed room heat issues. I got a very large L shape window, not sure what is the developer thinking because the view not so good also.....

I got install tint recently, but my room still feels very hot in the morning. my room temperature around 30 degree Celsius but feels way hotter than my other room that is 31 degree Celsius and only my room got this issues.

And out of all 7 casement window, only 3 can open and it is open from below for safety purpose and the gap is so small that i can hardly blow stand fan at it.


the major concern is that the heat built up so fast early morning and it just stays there till night time even after install tint. So what can i do to keep the room stays cool? blackout curtain? or any suggestion?

nothing much you can do as the walls are also heated and can retain heat. Only solution is install thicker curtains and a good quality tint.

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

air conditioner

This post has been edited by SYAMiLLiON: Nov 7 2022, 03:31 PM

That is the reason unit facing north-east are normally selling more expensive but wont have such problem for high rise.

double post

This post has been edited by SYAMiLLiON: Nov 7 2022, 03:31 PM

Try this, not kidding, there will probably be other similar videos, but what you want is to move the air either out of your room, or circulate it.


This post has been edited by thomasyke: Nov 7 2022, 03:37 PM

cant install reflective tint, do blackout curtains help that much? I m now using normal thick curtain only. oh and in the morning, should i open my window? or just keep all windows and curtain closed?

The fastest solution, put up the curtain or blind.

If you willing to do away with the view. Erect the partition wall with rockwool insulation (50mm), block of at least a the direction facing west.

Tint don't do much help.

Just curious to know why you can't install reflective tint. I can't imagine that the MC/JMB has a say in what colour curtains you can install on the inside of your unit, so similarly the colour of your tint.

will this works if my window can only open about 10 cm? and its casement window that push out from bottom one



really? tint doesnt help much? dang..... money wasted

Tint only filter out the radiation mode of heat transfer.

The major heat transfer via conduction & convection are still present. The best way to address the convection & conduction is the selection of the material of the surface with low U-value material.

If got money, put the double glaze window with vacuum cavity in between. The vacuum will stop the convection & conduction heat transfer. It will block the noise transfer also.

This post has been edited by nihility: Nov 7 2022, 04:32 PM

Are you an engineer?

The best way is another condo building right in front of the window .


Really nothing much can do unless JMB to look into this which is very unlikely due to the commercial matter

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.

Blackout curtain does help (albeit not that significantly). Perhaps do a round of blackout curtain surrounding the walls too.

not to cari gaduh or anything.... what you mean "not sure what developer thinking".....
u means they should change from large window to smaller window?
or the should not build anything facing the west?

anyway- this issue is common in property. when ever possible, landed developer these day will have north-south orientation
condo a bit hard right, since all 4 side need to build something.

why can you use tint with high infra rejection?
it doesn't need to be chrome in color. many good brand has something of high visibility ( say 50% or so) with 80% + heat rejection.
It wont eliminate fully la, but add with black out curtain- certainly will help a lot.

Wall still remain warm, but at least not making the whole house like oven

Sorry for late reply, still under probation period, so can only post 3 comments in 12 hours, and sorry my window is actually 4 pcs facing south east and 3 pcs facing north east. So far my wall not that hot, only window already very hot in the morning.




hmm, if i were to change the curtain, which one is better? thermal insulated blackout curtain or honeycomb blind?

and in the morning, should i open my window with curtain closed? or just keep everything closed?





this is the max window size that i can open, crack open the windows you mean crack the bathroom one and install vents? or crack open my bedroom one? because if room one i think developer wont let crack open because they scare ppl suicide or kids accidently jump.

I do open my window but only after sunset, i keep the window close in the morning, is it ok? my tint around 80% IR, just it is not reflective one. reflective and non reflective one big difference? because last time my management there say cant reflective, but then i didnt argue with them




this morning i try touch my wall, wall is not hot at all but window very hot



yes i really think they should cut the 7 large window to just like 3 - 4 is enough, and because there are too many windows, i can barely put any furniture/cabinets there because of the extra size window. and sorry i mistaken that the window is facing east not west. and I did apply tint, with 80% heat rejection one but i still feel quite hot in the morning, so I wonder are there anything else can do or if change to blackout curtain, will it help to block the heat

I'll go for the thermal insulated blackout curtain.

If you already have AC in the room, leave the window closed. Opening the window will cause the hot air / fresh air entering the room via the window opening.

Blackout curtains helped a lot. Traps the heat between window and curtains.

There are pro and con in buying a corner unit, including landed. One can only do little to reduce the heat esp in highrise due to the limitations from jmb.

Turning on the ac is the next option but not a solution in the long run ... you win the battle but not the war.

The reasons why some prefer buy subsale .... can see, can feel, can nego.

Well.... if during initial sales, more units to choose from, as long as careful, then can get something that matches all the criteria.
inclusive the view ( i got friend which the window over look a shopping mall top, cooling towers and other vents), further from refuse chamber, away from lift etc

if sub-sales... hard to find anything that meet most the criteria. yes, risk lower, but if the unit is ideal- not so easy to reach you.
need to spend lot of time and effort. And more-ever, if ideal then the price will sure be higher at sub-sale.

'RiSK' is good enough to turn a dream into nightmare. I took 3 years to find my current almost perfect property.

This post has been edited by mini orchard: Nov 8 2022, 11:04 AM

well... have to balance ba
not all people got 3 years. may be new baby coming out. or kids going to start school etc.
so not all have the luxury to hunt and wait

Also even sub-sale, we cant rule out all risk.
eg- night mare neighbour, new taman development causing main road congested, etc

New construction have to wait 3 years ba ... pay and wait

If baby coming, more reasons have to buy subsale ba.

Nightmare neigbours are applicable to new and subsale.

This post has been edited by mini orchard: Nov 8 2022, 12:02 PM

I want to ask, what if I just cover the window and window frame with BB238FR-10 Aluminium Foil Bubble Foil? will it block the conduction heat better? or still the thermal insulated blackout curtain will be better?

It will help if based on the technical specification.

i see, then is it that i need to install/paste like 2 cm from the window frame to get the best result for radiant heat reject?

TS meaning your corner room kena both east n west sun?

What in the design even is that wei

My bedroom only facing west also so hot after evening confirm need aircond from 3pm onwards