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102

Why did we give up on insulation? (lemm.ee)

submitted 8 months ago* (last edited 8 months ago) by Wanderer@lemm.ee to c/unitedkingdom@feddit.uk

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I just watched some video about Yakutsk Siberia which is meant to be the coldest city in the world. Thought "Those poor bastards, wonder what they need to wear indoors when it is -40 outside."

Turns out a pissing tank top and PJ bottoms. We really need to start demanding better things in this country don't we?

I'm also reading a book about coal mining. All the unpaid labour, minimising wages and dodgy things the bosses did then still happens now. Now I'm not a tankie so don't get the wrong idea here. But why are we all okay living like this I don't get it? Why is the UK population so forgiving at living it shit conditions.

Also I'm going to jump in before anyone says no insulation keeps you cold in the summer. Insulation works both ways, it can keep heat out or it can keep heat in. It's better in the summer and in the winter.

Siberia video in question:

https://youtu.be/K0z7Avc9ZtY?si=_KTob2YYMn2HLwkv

Also I hope I havent broken any rules. I can't see any. This seems mostly news posts but I guess text posts are allowed? Sorry if not.

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[–] GreatAlbatross@feddit.uk 4 points 8 months ago* (last edited 8 months ago) (1 children)

(text post is fine :) )

I would say that we haven't. However, we have a lot of old housing that needs improving.
As someone who's been spending too much time on building work at the moment, the current regulations and requirements for insulation are not that light. (Approved Document L, if you're interested)

The specifications are written in W/(M2-K), or watts of heat lost per meter squared, per degree delta from one side to the other.

New dwellings have to hit:

External walls: 0.13wmk
Roofs: 0.11 wmk (that's about 330mm of glass fibre insulation, or 160mm of PIR board)
External floors: 0.13

Or to put this in perspective: A 30 M2 roof on a new house, on a 0 degree day, with an internal temperature of 20 degrees should only be losing 66W of heat per hour.

An older building retrofitted with 100mm of insulation (effective wmk of 0.4) would lose 240W

An uninsulated roof (2.5wmk) would lose 1500W.

The ECO plans are trying to fix this in older properties, and they're honestly pretty well thought out (they target the lowest hanging fruit, to get the best effect for the money spent). But things take time, and ensuring the work is done to a good standard costs a lot of money.

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