ᐅ Reflective film on large south-facing windows – effective?
Created on: 22 Jul 2020 21:57
C
chewbacca123
Hello everyone,
We have three very large windows in our living and dining area facing south.
As a result, it gets extremely warm as soon as the sun shines on them. During the summer, we almost always keep all the roller shutters down, making the room completely dark.
We have now received a suggestion to apply reflective film on the outside. Does this really provide the desired effect? Has anyone had any experience with this?
Thanks and best regards
We have three very large windows in our living and dining area facing south.
As a result, it gets extremely warm as soon as the sun shines on them. During the summer, we almost always keep all the roller shutters down, making the room completely dark.
We have now received a suggestion to apply reflective film on the outside. Does this really provide the desired effect? Has anyone had any experience with this?
Thanks and best regards
Müllerin schrieb:
Great, large south-facing windows to let in full sunlight and then cooling down with an air conditioner... what an energy disaster.
In a public building, this would cause a media outcry about poor planning and waste of taxpayer money.
Why did you even choose roller shutters instead of Venetian blinds or shutters?
Sure, retrofitting is possible, but it’s complicated and expensive. Well, if we had planned everything perfectly, I wouldn’t have to write this forum post now... we know we made a planning mistake...
shoulda, woulda...
Your comment isn’t helpful here and is unnecessary!
T_im_Norden schrieb:
You can retrofit external venetian blinds (raffs) on the surface, so you get the benefits of both.
If you have an air conditioning system, you should at least install internal blinds as well.
Although not as effective as external shading, it’s better than nothing.
Otherwise, the air conditioner wouldn’t be able to cope with the heat from direct sunlight or would have to be massively oversized.
When shading, pay attention to keeping a gap from the glass and the placement to prevent heat buildup and cracking. Yes, that’s true.
We’ll wait and see over the next few months and consider what to do.
Having external venetian blinds installed during construction would be ideal, but our architect didn’t advise us on this at all, which is really unfortunate. There are so many things to consider; it just slipped past us :-(
Joedreck schrieb:
The air conditioning works well in combination with photovoltaic panels. Any house construction for a family is pure luxury and a waste of space and resources. So everyone should be more restrained when it comes to single-family houses. I agree. We produce our own electricity, so although using air conditioning is still a waste, it’s just how it is.
chewbacca123 schrieb:
Yo, if we had planned everything 100% perfectly and correctly, I wouldn’t have to make this post now... we also know that we misplanned... could-have, would-have... I have been writing this here in the forum for years. Large windows on the south side and generally modern houses mean -> warm houses in both summer and winter.
There are basically only two solutions: a sophisticated shading system or active cooling.
Most people only believe this once they actually live in the house. But with air conditioning, you can’t go wrong, especially if you have your own surplus electricity anyway.
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