UV- and heat-blocking window films

Kitty

Senior Member (Voting Rights)
I've been getting increasing problems with UV rashes since I moved into a house with a south-west facing sitting room with a patio door. I've had PLE for decades, but I've now collected four or five different types of rash and they tend to be accompanied by 'flu symptoms and fevers.

Weirdly, being out in direct sun is easier than being indoors—the few bits of my skin that aren't covered with clothing are slathered in Factor 50+ sun block. The trouble is that it's designed not to come off, so if I don't want it all over my sheets, I have to wash the skin multiple times with shampoo for greasy hair. I don't want to have to do that when I'm not even well enough to leave the house, or sit here all summer in long sleeves, long trousers and a niqab.

So I've just had UV-blocking film applied to the patio door and sitting room windows. It's the type they use in museums and galleries, and blocks a high enough proportion of UVA and UVB that most people with severe light sensitivity don't need additional protection. Can't even tell it's there, it's clear enough that it can legally be applied to car windscreens.

It won't be of interest to most people here, but the guy told me he's been busy for a few days applying heat blocking film to south facing windows. I hadn't come across it before, and it can apparently reduce heat transmission through glass by up to 80%—lots of people put it in their conservatories, and it's effective enough that they consider it worth the cost. He said it wouldn't be expensive to cover the three-pane bedroom window that gets the sun all day, so I may try it.

I thought I'd mention it, in case anyone wants to look into it. I haven't yet, still recovering from chatting to a really nice young fella for an hour about optimising outdoor spaces for wildlife...
 
This is the company that did mine:


The films they use are made by a company called Llumar, and come with a 10 year guarantee.

It is possible to install it yourself, but it's a bit of a process doing the prep (including going over the whole glassed area with a razor blade) and then getting it on with no bubbles. The cost wasn't high enough to make it worth spending months thinking about it, then doing it in a slightly rubbish way, then needing ages to recover!
 
I've been getting increasing problems with UV rashes since I moved into a house with a south-west facing sitting room with a patio door. I've had PLE for decades, but I've now collected four or five different types of rash and they tend to be accompanied by 'flu symptoms and fevers.

Weirdly, being out in direct sun is easier than being indoors—the few bits of my skin that aren't covered with clothing are slathered in Factor 50+ sun block. The trouble is that it's designed not to come off, so if I don't want it all over my sheets, I have to wash the skin multiple times with shampoo for greasy hair. I don't want to have to do that when I'm not even well enough to leave the house, or sit here all summer in long sleeves, long trousers and a niqab.

So I've just had UV-blocking film applied to the patio door and sitting room windows. It's the type they use in museums and galleries, and blocks a high enough proportion of UVA and UVB that most people with severe light sensitivity don't need additional protection. Can't even tell it's there, it's clear enough that it can legally be applied to car windscreens.

It won't be of interest to most people here, but the guy told me he's been busy for a few days applying heat blocking film to south facing windows. I hadn't come across it before, and it can apparently reduce heat transmission through glass by up to 80%—lots of people put it in their conservatories, and it's effective enough that they consider it worth the cost. He said it wouldn't be expensive to cover the three-pane bedroom window that gets the sun all day, so I may try it.

I thought I'd mention it, in case anyone wants to look into it. I haven't yet, still recovering from chatting to a really nice young fella for an hour about optimising outdoor spaces for wildlife...
Sounds very interesting. As soon as spring comes around I have to wear mountaineering sunglasses inside my house during the day. My body feels as if it under severe physical stress during the day. I have an immense sense of relief when evening comes. Sometimes I wonder if I may be turning into a vampire. I shall definitely look into this stuff. Thanks for the tip.
 
Interesting @Kitty ta. I am south west facing at the front where my bedroom and living room are and I have Venetian blinds to manage the light levels. To be fair light isn’t a major intolerance issue for me. But but that side gets uncomfortably warm during the hottest summer spells and my tolerance for heat is much worse. I had been thinking of maybe getting an air to air source heat pump air conditioner installed in my bedroom possibly the film would be worth trying before the aircon. Let us know how you get on with your sitting room
 
But but that side gets uncomfortably warm during the hottest summer spells and my tolerance for heat is much worse. I had been thinking of maybe getting an air to air source heat pump air conditioner installed in my bedroom possibly the film would be worth trying before the aircon.

The problem in a prolonged heatwave is that most UK houses are built of brick or stone, and the whole structure heats up. The bricks can continue to convect heat even when the weather cools down. I think only air-con would fully effective for that kind of weather, though I don't get on with it very well. (Some people get headaches and sore throats even when the filters have just been changed, and of course I had to be one of them! :rolleyes: )

But I think the heat filters might be useful in normal British summers, where the temperature and amount of direct sunlight varies. It's not especially expensive if you can find an installer nearby, and it should last for years. My chap had to come quite a long way so there was a £100 callout fee, but it would be less if there was someone closer. The film and installation would be a couple of hundred quid for my bedroom windows.
 
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