Jump to content
Find Professionals    Deals    Get Quotations   Portfolios
Sign in to follow this  
Tse

'heat Proof' Walls

Recommended Posts

Hi,

My HDB unit is facing the afternoon sun. When its night time, the wall give out the heat absorbed in the day time, making the room very warm.

Any idea what can be done to 'heat proof' the walls?

I am thinking of covering the wall with wood. Just the portion under the windows.

Any brilliant ideas?

Thanks in advance.

TC

 

Share this post


Link to post
Share on other sites
Looking for good contractors? Click here for your request

our place faces afternoon sun too... we have solar films for the windows, but of course, can still feel the heat.

saving grace is the place is rather windy.

if there are any ideas on reducing the heat, would like to hear it too :)

 

Share this post


Link to post
Share on other sites
same problem here. anyone with a solution???

some of my thoughts ..... something must be a very good conductor of heat to draw away heat , plant ,heat sink, water feature on the wall etc ....

 

Share this post


Link to post
Share on other sites
It does help, where you got the quotation from ?

solar film does help... in reducing the direct heat fm windows.

the heat conduction fm the wall will still be present though

 

Share this post


Link to post
Share on other sites
solar film does help... in reducing the direct heat fm windows.

the heat conduction fm the wall will still be present though

double wall with vacuum in between.

 

Share this post


Link to post
Share on other sites

can try the double wall thingy, but that means, u lose floor space leh....

I read that there's some kind of glass called low E glass that can cut away the heat plus double glazing is supposed to be very effective lah... anyone got experience with this??

 

Share this post


Link to post
Share on other sites

You can do a few things to reduce the heat such as:

a. air-con the place

b. install a ventilator to extract out the hot air

c. install double glazed windows

Other options include making the wall thicker such that heat finds it harder to penetrate into the wall to the room.

 

Share this post


Link to post
Share on other sites

Read all the alternatives suggested, the most practical and simple are:

1. Curtain to block sunlight from entering room, instead of solar firm.

2. Ceiling fan, best with KDK for lasting.

Theoretically, the most effective way is to prevent sunlight from reaching the wall. In practice, here are some examples , aluminium clad(cvommercial buildings), planting, Hugh water fall, double-layer glass (sound & heat isolated). Question is which is most cost-effective in long run?

Wood wall next to brick is not a good solution. Heat transfers from brick to wood, SLOWLY.

 

Share this post


Link to post
Share on other sites

to thermal insulate your home, there are two phases we need to understand:

1, during the direct afternoon sunshine;

2, after the sunsets

in phase 1, energy is absorbed in the wall, transmitted through your window to the room, heat up your furniatures etc.

in phase 2, the energy absorbed by the wall and furniture will be released to the surrounding, your flat will be pretty much like an oven.

afternoon sun is horrible mostly because of the phase 2 problem, because your flat will be still hot even the sun sets.

as mentioned by some fellows above, solar film is a good solution to prevent heat going through the window to heat up your furnitures. A good grade solar film could reject UV, and infra lights (it is the infra range of light carries majority of the heat but it does not give you the feeling of brightness), but allow visible light to pass through, so your room will still be bright, but less heat is transmitted and received by your room. this is basically to reduce the effect during phase 1.

to tackle phase 2 problem, we need high thermal insulation materials (low thermal conductivity). someone mentioned thick wall to insulate heat, which is correct. because the outer surface of your flat (outer surface of the glass and wall) will be very hot after direct sunshine for hours. when the sun sets, the heat will be released to the surrounding, which is inevitable. however as long as the heat is not released to your room, it will be fine to you. so the whole idea is to prevent the heat of the outer surface of the flat from going into your room. the solution is to increase the resistance of the wall and the window. however there are other ways to increase the thermal resistance as well: double glazed window has a vacuum or inert gas filled between two glasses. vacuum is a very bad thermal conductor, which means even your thickness of the glass is not significantly increased, the thermal conductivity will be greatly reduced due to the vacuum in between.

as for the wall, of course we do not want to increase the thickness to much to insulate the heat. the feasible solution is to use high density polymers such as high density polyurethanes, which has a very low thermal conductivity. meanint that you need a very thin layer of such material, whose thermal insulation effect is equivalent to a thick wall.

or you can use those thermal insulation paintings as well. they have a lot of ceramic microspheres dispersed in the painting. the microspheres have low thermal conductivity, so a thin painting layer will be as good as a thicker wall too.

I bought a flat similar to yours (afternoon sun), so I was looking for feasible solutions recently.

as for the solar film, 3M is a good choice, you can find discussion in this forum. cost wise around 16 dollars psf.

as for the wall, if you want to go with the painting, you can google insuladd for more information. but as far as i know, they do not have a distributor in singapore yet, I have contacted a local painting provider, who would like to give it a try.

if you want to use polymer board, I do not know any place we can buy such boards in singapore so far.

hope it helps

Edited by maksimsg
 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • advertisement_alt
  • advertisement_alt
  • advertisement_alt
Aura Sink download renotalk renovation guide


×