United Kingdom
General community for news/discussion in the UK.
Less serious posts should go in !casualuk@feddit.uk or !andfinally@feddit.uk
More serious politics should go in !uk_politics@feddit.uk.
Try not to spam the same link to multiple feddit.uk communities.
Pick the most appropriate, and put it there.
Posts should be related to UK-centric news, and should be either a link to a reputable source, or a text post on this community.
Opinion pieces are also allowed, provided they are not misleading/misrepresented/drivel, and have proper sources.
If you think "reputable news source" needs some definition, by all means start a meta thread.
Posts should be manually submitted, not by bot. Link titles should not be editorialised.
Disappointing comments will generally be left to fester in ratio, outright horrible comments will be removed.
Message the mods if you feel something really should be removed, or if a user seems to have a pattern of awful comments.
view the rest of the comments
Interesting. You have any data on that?
Trying to Google the question gives about a thousand links to very mediocre sources (mostly companies selling blinds), so I won't arbitrarily link you to one. But it's exactly the same mechanism as exterior shutters, just less effective.
Ultimately it's all about reflecting solar energy away. Some is reflected away by the white colour, while some is inevitably absorbed by the blind making the material hot to touch. The advantage of an exterior shutter is that all the energy it absorbs instead of reflecting is still outside your house, and the window glass should keep it out. Wheras the heat absorbed by interior blinds or shutters is now on the wrong side of your window glass and can warm up the room.
So in order to get the best of the effect, you need nice highly reflective blinds. White is better than darker colours for obvious reasons; you can also get slightly more expensive "thermal" blackout blinds which are coated with pigment that reflects a greater proportion of the non-visible sunlight too.
Also worth pointing out that it's not binary, and that non blackout blinds and curtains will help too, just not as much.
I don't doubt it's true. I was just hoping you had a numbers source to hand to save me looking.