Hi all,
i live in double storey terrace house.both floor equipped with a ceiling fan
currently im trying to turn my room at 2nd floor into a multimedia video game movie room.
i install kdk ceiling fan.
but the heat is unbearable,especially noon and also nite.
i cant afford to install air cond,and currently my house electric bill is still free,lol.
are there any way?kungfu? to make my 2nd floor as cold as my 1st floor?
exhaust fan? ventilation fan?will it work?
someone told me to put polisterine on the attic to stop the heat from coming down.
the logic is jus like polisterine box are being used to kept ice from melting.
will it work?

my room




Some of the findings from this thread
-Exhaust fan
-nippon solareflect
-wind turbine ventilation n air vent
-tinted windows/tinted film
-aluminium foil
-polisterine on roof
-awning/canopy
-water sprinkler
-ventilation fan on ceiling
-double layer brick wall
-tcl

This post has been edited by hansapkuay: Jul 27 2014, 09:05 AM

Just get an aircond, u wont regret it.

i think because the heat generate during daylight will release to top during night time, that's why top floor hotter than ground floor.sum more top floor close to roof/ceiling. open the windows, let the hot air go out, but usually brick house is like this compare to wood, as they store heat more compare to wood

my 2 cents (^__^)

there's no kung fu to cool your room, only aircon

big lcdtv + cpu will generate extra heat...
need to be aircond room to solve it..

yea, agree that you should get air-con for the long run.
remember, all the electronic equipments in the room wear out faster if the room is too hot.

I believe it's hot because one of the wall face sunlight during afternoon to evening. Heat trap in the wall will be released at night.

Have ventilation, use a suction fan to suck out hot air. Ventilation fan does not use much electric as air con.

if you have money to invest. The best bet will be an insulator. I got a contractor to build this some time ago.

On the wall that face sun light, they assembled a frame consisting of made of wood laid vertically. aluminium can be use as well. In the empty spaces, heat insulator can be placed. if not leave empty, air also can act as an insulator. Before you put up the wooded / gypsum / artificial concrete. You can have additional heat reflector pasted at the board facing inside to reflect heat.

Last time i did not do both heat reflector / physical insulator. Still the temperature reduce to an acceptable range.

The greenest way. Grow a tree to block of the afternoon sunlight.

If you were to put aircond do not put at the wall facing the afternoon sunlight. avoid placing the compressor at the same wall too,

Good luck!

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Added on June 4, 2011, 10:53 amrefer here! http://en.wikipedia.org/wiki/File:Hallway_insulation.jpg

This post has been edited by akmis: Jun 4 2011, 10:53 AM

You can contact Roxul. They have a system to cold 5 deg down.

Thermal insulation is critical as the heat will not go away. I installed insulation material and I could take nap in the afternoon with the moderate fan on.

To be really effective, laminate window film to window too.

Thermal Foil insulation.

thanks bro

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Added on June 6, 2011, 8:35 amwow,this seems interesting... and cheap
can u provide any diy web on the installation bro.
i tried google around but i got lost

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Added on June 6, 2011, 8:36 amthanks bro

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Added on June 6, 2011, 8:37 amthanks for all the reply guys.i will try emulate exhaust fan system in my room,by using a standing fan,direct it out of the window from my room and see if there's a difference

This post has been edited by hansapkuay: Jun 6 2011, 08:37 AM

how bout take cold shower b4 u sleep

hang some wet cloths in your room...

open your room door , dont close it...

Dun know what it is called but I call it a canopy. Install it outside ur window. It helps to keep the sunlight out of ur room during the day. cheap solution.

It shows that your roof is badly insulated. Your condition is same as mine, mine is three storey house, The top floor is super hot in the afternoon, the living room is probably 2-3c colder than the top floor. You can practically feel the difference in temperature, downstairs and upstairs. It's like walking into a sauna room in the afternoon.

alrdy tried bro,lol.doesnt work

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Added on June 6, 2011, 3:55 pmyes,yes and yesss...
this is exactly my situation.
even walk up the stairs feels like heading to hell

This post has been edited by hansapkuay: Jun 6 2011, 03:55 PM

can try install a turbine ventilator..

to extract the heat out from the space between ur ceiling and roof

or install a ceiling ventilation fan to remove the warm air from the room and keep a circulation of air to keep the temp down..

air from bottom house raise up due to the ceiling ventilation fan and the air is extracted to the ceiling and the turbine ventilator take the hot air out from the attic/space between ceiling and roof...

u want better install thermal insulation material.. and if got some extra money to spend around wash and repaint the roof to white/silver shade..

maybe what you can do is to get ventilation holes for your wall (the lower the better, then get electric ceiling ventilation fans..... then have your roof install the "mushroom" thingy....

install air-con and start pay the bill..lol

ur problem is same with me but my ground floor most hot than 2nd floor.. i still cant find the problem why my ground floor toilet is too hotttttt.. what wrong with our ozone now?

My dad solved the ground floor hot toilet by adding a ventilation fan on the wall to extract the hot air out to kitchen. It helps....

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Added on June 7, 2011, 7:47 pmThe room is hot bcos the heat transmit from roof and trap in ceiling, when you on the ceiling fan, it puss the hot air downwards. Also, there are more heat come in from the window if your window is facing west.

Thermal insulation on the ceiling + tint on window. Open window when the outdoor ambient is cooler for natural ventilation.

This post has been edited by JoJo(0^0): Jun 7 2011, 07:47 PM

interesting

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Added on June 20, 2011, 8:12 pmi plan to mod my room window n intall kdk exhaust fan there.is it ok?

This post has been edited by hansapkuay: Jun 20 2011, 08:12 PM

I think akmis is 100% correct. Heat is from your side wall, ceiling is not so bad assuming you have concrete roof tile.

Insulate yr wall, outside cannot ( for link terrace ) then do inside. Not much choice other than AC.

Hot air rises. Thus they are trap at the upper portion of the house.
Like someone mentioned before. Install the wind turbine ventilators.
Alternatively, install those insulation - rockwool, etc. try searching in the net. This is to prevent the heat from radiating from the attic to the room below (1st floor)

It depend on how much (temperature) you want to cool down. If you want to use it for entertainment, nothing beats installing A/C

Ok 1st of all, someone got it right. Hot air rises, so its only normal if ur upper floor is hot.

1. If ur glass is facing east or west, it would be hot in da morning or afternoon, solution, put blinds.

2. If ur roof is of bad quality tiles with a low u-value, it would also transmit heat to your room. Is ur ceiling of gypsum board? I dun think so. Solution, change roof tiles or ceiling, which both are costly.

3. Placing any fans would not help as the hot air will still be trapped in the room. Place a higher static pressure axial fan to suck out the air in ur room. By doing so actually forces the air from floor below to replace the air in ur room which cools it down to the same temperature as downstairs.

4. Air conditioning. No need more explaination.

economy way is turbine ventilators to be installed on roof top (around RM800) to cool down the heat, see below link
http://voyager8.blogspot.com/2008/04/make-...heaper-and.html

but for long term, to install air-cond would help, sure can kungfu abit.....

i think long term economy would be the turbine ventilator since it only cost installation cost

while for ac when u use it you have monthly bills hahahaha

i know not all turbine ventilators are built the same, any idea what are the good "types"

depends on what room temp you are looking for. in our kind of weather, the turbine ventilator will not lower the room temp much. Basically, its function is to draw out the hot air that are trap at the ceiling level. If the weather is hot, the room will not be much cooler then outside. Maybe a few deg C lower. That's all. This is from my experience from using them at my previous house

To really have a cool room, nothing beats having an air con switched on. Of course, there is the initial installation cost plus the monthly elect bill

Another method like some restaurant do loh. Sprinkle water on the roof

for best result :-

1) install the aluminium foil e. monier radenshielf below the roof area.... involve removing the roof tiles... cost about RM3k for normal
double storey house

2) install another layer of CSR Coolbatt above the ceiling area.. cost between RM2k-RM3k for 2 storey house

3) install tinted film...cost RM3k + for whole house...

4) put Nippon Solareflect paint on the outer area of your house...

guaranteed your house will be cooler !

well its better to get same temp inside and outside.. rather than hot inside..

previously my room was HOT... now its normal warm.. cause i've installed the ceiling fan,

but my hall is HOT cause there is no ceiling fan there, planning to install turbine ventilator so that the air in the roof can circulate this making it less hot.. this COOLER than the CURRENTLY HOT...

if you want ur room to be COLD/COOL then install aircond else, the best is to have equal temperature

sounds expensive lo bro...

i'm thinking of the nippon solareflect on my room, to give it a new coat since the old one is dirty and etc....

anybody used such roofing coating ? is it any good ?

HW-Racer,

did almost the same thing but instead of CSR coolbats i used cellulose because the woolen blocks have gaps which will cause heat-bridges. not by far as good as cellulose flakes. result with the allumiumum foil (double sided, double woven): inside the roof only reaches 41° tops. under the ceiling in the roof side temp: 28° tops; inside the house ceiling temp even a bit lower cause a/c-ed room: 26° (ambient temp).

thinking of painting roof with reflective / white paint too to make it even cooler.

tint helps a lot if you have lots of windows. do yourself a favour and get a good tint, dont waste time with the cheap ones. no need for v-cool though. personally we used raybarrier which was good. cost for house is much lower than for car (per sqft that is).

Solareflect or similar will be used next time we paint the house i guess. last time not in the market so we just paint it white. also helps a lot.

i recently found this wall insulation paint from heatshielsolution.com - did anyone try it? thinking about getting them to paint the exterior of the house + roof with it.

i remembered u used TCL rite?

hi Bro... so how's the temperature inside your house ? effective ? feel cooler ?

yes i used TCL - i would use them again.

temp inside the house is very comfy. on a hot day if you dont use the A/C at all and keep all windows closed temp will not go beyond 29° inside (if you aired in the night). all you need is a fan to blow the air around you...

if you add aircon you can get the house extremly comfy with minimal electricity consumption. i highly recommend it.

what's the damage for the TCL?

have to look up the exact figure. my roof-area is pretty large. around 5k i think.

Generally, heat from the outside penetrates into the house from all directions. They can be from the roof, walls, windows or even openings.

Those that are renovating their house (to be exact, hacking and extending their existing perimeter walls) can opt to use the autoclaved aerated concrete (AAC).
These are not the normal red clay brick or the sand bricks. They are concrete product made with fine raw materials entrained with tiny air bubbles and cured under high pressure and temperature. The tiny bubbles slows down the heat transmission through the walls and acts as a heat shield. Thus providing an insulation against incoming heat into the house.

This is not a new material. It was first introduced as a building product in Europe in the late 1920s.

These products are currently being used in the green bungalows in Semenyih

usually what i did is use a table fan/standing fan facing and blowing to the windows(windows must open)...the hot air will blow out....

hope this can help you...

This post has been edited by tiensong: Jul 13 2011, 11:29 AM

You might try to install those small fan use to suck the heat out of your room.

What does TCL stands for? Thanks

make a hole at center of the room then can get the aircond from downstairs room

You can refer to here

I always know higher floor is hotter... Thus I got myself 3 storey where I only use 2 storey... The 3rd floor is used for store room and guess room that hardly use... 3rd floor mainly help the vendilation...

my room + balcony is facing west , what is the best way to block the sunray to heat-up my wall & windows:

1. setup sun louvers at balcony
2. outdoor wooden blinds
3. outdoor curtain (with reflective surface, does it exist? )

1.. if you take aluminum it can last...
2... dont think can last long outdoors...
3.. never heard of such thign..

4. Solarreflect nippon paint..
5. tinted window
6. ventilator fan

7. install those "extended" wall units.. like some office building they have another out layer of wall(made from alu) that has an air space between the alu walls and the brick walls...

no need repaint and the heat is stopped by the alu wall covers and the inner wall remains slightly cooler

polisterine on the roof

logically it helps.
if it could keep out the heat from melting the things inside, it should keep the heat from going down to your room as well. Keyword = "LOGICALLY"

installing an air con could solve the problem but that is not an option to you since you stated so. ALSO if air con is installed, overtime it doom us all. short term solution with long term effect. WAKE UP people!

I had that problem at my old house too. the source of the heat is from the window facing north the sun shines from morning till evening. i kept the curtain close halt and open that window to allow ventilation. I also kept my door open.

but since this is your media room with no aircon, i would suggest reposition your electrical things that generates heats away from easily heat trap area. (ie corner with no immediate window) and install a ventilator. one off cost with no electrical commitment. try using old newspaper as a replacement to try out polisterine during the weekend. means you have to use install it on saturday morning till sunday but quickly replace/remove after you have the results. Remove or replace with polisterine if it helps a lot. I dont know if polisterine is highly flamable, but if it is then dont use that as well. you can try aluminum foil (Shiny way facing up) as an alternative. two side of aluminum foil, 1 transfer heat to the other side and 1 reflect heat. The shiny part is the one reflecting heat.

thz jinxxx & zeese for the proposals , could not afford to implement all the solutions tho' , i suppose option 1 or 2 would hv the best cooling effect among all rite ?

btw , is water spraying fan harmful to us in long run ? not spraying directly to the body of course ... any complication ? mold problem ?

Removed since commented caused Fire Hazard


This post has been edited by Jo_da48: Aug 7 2011, 11:49 AM

Any fire hazard concerns using the bubble wrap (pop pop plaster)?

This is in between the Concreate roof and Plaster ceiling, and if fire hazard it will start from room as fire can't go thro concreate, right?
If in the room, everything in the room are the possiable of fire hazard already...only thing I could imaging will be the heat or wire from downlight as it will be the only item on the plaster ceiling.

* It called "bubble wrap"? (pop pop plaster)


This post has been edited by Jo_da48: Aug 7 2011, 12:30 AM

Yes it is call bubble wrap. My company always buy in roll. It is fire hazard. You don't want so many thing that can cause fire or accelerate the fire in the room.

the reason that there is a fire rating is so that if there is a fire

the things on the roof/house is not an accelerator for the fire aka FUEL

FYI.. you might void your fire insurance if anything happen if that shit is in the bomba report.. man

Is it worth the savings to DIY your own combo of aluminium foil + bubble wrap, when it is such a fire hazard? I would've gotten fire tested radiant barriers that contains bubble wrap such as Heat Away or some other brands.

guess that can only be answered only when, a fire actually happens and you wan claim from insurance...

Only thing that could really prevent "fire hazard" is stay in a Metal and no electric good house....
Wood, curtain, electric good, light all are "Fire Hazard" free?

It all depend ....

This is where I plan to put...




This post has been edited by Jo_da48: Aug 7 2011, 02:49 PM

Just use Solar Window Film. Heat Reject up to 80%!
Interested please look for me. =)

that's bro...
i also wanna a turbine ventilation for my home

It's what I'm currently doing, using the top floor for storage purpose and laundry hang drying. The 3rd floor which is also the top floor only consist of masterbedroom, but due to the temperature during daytime is too high, it's not an idea place to make it a bedroom since I'm currently renting and no air conditioner is installed.

awning?

how about upgrading the 3-blade fan to 5-blade fan?its cheaper,and i believe 5-blade fan give more cooling air.

Take your shirt off. Sexiness.

Still is circulating warm air. Unless you have water to vaporized it.

sounds high tech water to vaporized ehehhe

the fan will still blow the same room punya "Warm" air around.. = no diff

we need to exhaust the warm/hot air out.. or prevent more heat/warmed from building up

= insulation or exhaust or aircond

This site give you a very good example how to cool and preserve the cool air and efficiency of a home at here. They list down all the material and where to get. Even you can visit their home.

http://www.cooltek.org/

I think is humidifier, not vaporized. Just like when blowing air to the aquarium, temperature can drop 1 to 2 deg. Like you see in mamak during how day they blow the fan + mist. But this will generate lots of humid, not good for room. Later bed growth mushroom.

wa...very great tips from you guys. thanks!
i think air circulation is very efficiency way.

hansapkuay, have you solve it out?

heard that hanging a gourd (can be found in chinese/ buddhist religious store) near the window/ door/ place near the hottest space, or putting a white/ transparent crystal, might help to adjust the room temperature.

growing/hanging some pot plants near outside windows might also help.

Does this plant produce cold air? Any logic of it?

putting plants around living areas are common green methods of adjusting indoor/outdoor temperature; juz like u would feel a lot cooler when u walk into under a big tree from the outside with burning heat.

plants with lots of leaves release water vapour into the air, thus help to retain a certain level of humidity around the area where the plants exist.

some buildings that encounter all-time heat even have special arrangement on the exterior walls in which plants are grown on the entire surface on the wall; but these methods are more common in other countries.



This post has been edited by Life_House: Jun 17 2012, 09:59 AM

+1 .. there is a building in KL sentral that uses this...

need some kind of creeping plant/grass that is easy to maintain any ideas ?

insulate the house, put ventilation fan and AC... if temp is damn hot your venti fan won't do much. but you can stop the ventilation fan and run the AC for maybe less than an hour(if you're not aiming for cool/cold) just to cool down the hot air.. maybe it'll increase your bill around less than RM30 i think if run not more than an hour everyday.. keluarla duit skit kalau mau selesa...

Bring Fridge upstairs and open the door

you need to insulate the roof and ceiling. Shades by trees help. Good circulation of trap hot air. I believe the above is the best I know.

cheapest way is too install ventilation fan which could be result heat reduction up to 30%.

you may combo ventilation fan with window tint for better result.

btw does any ventilation fan brand come with remote control?

guys, i just installed ventilation ceiling on today.. I could feel the hot air is reduced. Air flow better..
I'm think install one more ventilation window fan flow in the cool air from outside during night time.. any suggestion?

KIntos, why you need remote control?

This post has been edited by PrinceMickey: Jun 18 2012, 10:49 PM

one thing i dont like about ventilation fan ceiling/wall mounted..

is it helps with the circulation with also happen to increase the dust

I think your all your ventilation going to suck power as high as aircon.

I cannot understand. It is suck air from the room to roof, hot air will release on the top.

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Added on June 19, 2012, 9:38 amAircon power consumption is much higher than ventilation fan la bro..

This post has been edited by PrinceMickey: Jun 19 2012, 09:38 AM

electricity consumption is low in fan compare to aircond la.

good to hear that mickey as I will be doing one. my contractor also suggested the turbine thing so that hot air can escape.

bro.. your air need to come from somewhere for it to be sucked to the top right

and that somewhere is usually windows/door thus dust will enter..

unless your hse is air tight.. and the only opening is installed with an dust filter..

bro, i got your point now..
My window placed an air purifier filter

I personally prefer natural air than aircon.. aircon i feel very uncomfortable even though we are working in office from morning to night
I'm thinking buy one more exhaust fan suck from fresh air outside into room.

Exhaust fan is supposed to create air flow through the building (convection) i.e. to improve ventilation.
It doesn't help to block off the heat from radiation.
To reduce heat from radiation, you need a medium to reflect heat from a building - a reflective roof (not applicable to houses) or reflective aluminium foil. It works on the same principle as the thermo flask.

This post has been edited by tehtmc: Jun 20 2012, 12:09 PM

yes but if air are properly vent you won't get to hot. Just imagine two car under the sun. One with windows A open another with all closed. You get oven effect for the car with windows closed.

Also is good for better air circulation, maybe not this month.

I been using air vent for almost 20 years is goods to help suck in fresh air, and also you can cool the room down (till same as outside temperature) before switch on Ac. Help save energy too.

Air circulation or ventilation is one form of heat transfer. If you study physics, there are 3 methods of heat transfer - conduction, convection and radiation.

Say you live under a concrete roof. You can have the fan on full blast but yet you can still feel the heat being radiated from the concrete slab above. Heat transfer through radiation, which is a form of electromagnetic wave, does not depend on the medium, i.e. the air around you. The is also how we receive heat from the sun.

This post has been edited by tehtmc: Jun 20 2012, 12:30 PM

Sure I know, been using it for so many decades. I am giving layman comparison.

tehtmc, ventilation fan is useful at nighttime and is also cost effective. I can feel the improvement of less heat air in the room at night time, better air circulation.

Of coz it will help much such block of radiation, like paste the uv tinted sticker on window, aluminum foil, sun block pain on roof, turbine ventilation, etc.

However, our weather is getting hotter nowadays...global warming arrrrr....

[EDIT] - I touch the wall, i could feel the heat release from the wall, especially for endlot house. I see some forum suggest climbing plant, creepers outside the wall. Any suggestion and tips for end lot or corner lot house?

This post has been edited by PrinceMickey: Jun 20 2012, 02:17 PM

The logical way is to prevent the sun from hitting the wall. Treatment on the outside is always more effective than
treatment inside (using blinds, reflective film, etc). That's why the orientation of the house to avoid the sun is so important.

Using creepers helps but it takes time to have the whole wall covered. Walls are hot because concrete, bricks and plaster are good conductors of heat. Having trees for shade is good but it takes years for them to reach that height. Or have a layer of sunscreen in front of the wall which is not cheap. Having canopy/awnings over windows helps, or reduce the size of the windows.

For new houses, it's worth having a double layer brickwall with a air cavity in between (called cavity wall).

I doubt those reflective paints help much. Light colours would not absorb as much light as dark colours of course.

This post has been edited by tehtmc: Jun 20 2012, 02:56 PM

tehtmc, thanks for your tips!!!! It will helps a lot.

This post has been edited by PrinceMickey: Jun 20 2012, 03:02 PM

BEST SOLUTION I WOULD RECOMMEND....INSTALL AIR COND AT THE SAME TIME IMPLEMENT THOSE HEAT REDUCONG METHOD TO REDUCE NATURAL HEAT IN YOUR ROOM

MY EXAMPLE: IN A PARTITION ROOM OF A CONDO WITH A SLIDING DOOR TO BALCONY AS MY WINDOW AND WIND SOURCE... THE HEAT IS UNBEARABLE AT AFTERNOON AND NIGHT IF THERE IS NO RAIN...

MY SOLUTION IS GETTING THOSE PANASONIC 1.0 HP NON INVERTER ECONAVI AIR COND....NEXT STEP IF I HAVE EXTRA CASH I WILL TINT MY SLIDING WINDOW DOOR...SO THE BILLS CAN BE REDUCE WITH THE AIRCOND DONT HAVE TOO WORK AT FULL LOAD TO COOL THE ROOM....

I'm facing similar problem with end lot of terrace house. The wall is facing west. Full sun light blast from noon to dusk. Thick curtain helps a bit.

Check out www.heatshield.co.nr. We provide onsite installation Malaysia wide.

Anyone know any good reliable and reasonable contractor for both ROXUL and roof turbine? My house is extremely hot even at night both upstairs and downstairs also very hot. DIEYING at home every day.

I've already gone down the TCL cellulose path for my ceiling, put a film of tinted stuff on my window, and both have helped bring down the temperature in my bedroom, but it's still not enough and I now plan to DIY, get some insulation material, plaster the offending NNW facing wall with the stuff, then conceal it with tongue and groove nyatoh or pine cladding. I also plan to replace the window with a double-glazed casement.

This post has been edited by PangurBan: Jul 26 2013, 05:18 PM

No lah. You will not die. Infact you will get healthier, coz everyday you doing sauna n sweating all day round.