Cooling tips

[motorbiking]

It seems intuitive that the further away from the inside of the house the insulation is, the better it will be at stopping heat from entering

That’s nonsense. The U value is the U value.

 

[MNW67]

Eh? It's covered in render - usually?

I meant the render is usually a light colour. That is what I have just been reading and looking at in photos.

 

[MNW67]

That’s nonsense.

I meant the external face, whether that is render or whatever, is usually light coloured.

 

[motorbiking]

That’s why new builds have a typical heat loss off 4-6kw

New builds in theory can be heated with a flow temp of 50 degrees or less. Try that in an old house!

I don’t think Boyo can comprehend heat loss, or would struggle to do the calculations

Yep that certainly appears so, I’m genuinely shocked that a builder could have such a poor understanding of the subject.

 

[MNW67]

That’s nonsense. The U value is the U value.

They say internal insulation is the worst for overheating and external is the best.

What is your explanation for that.

 

[motorbiking]

I meant the external face, whether that is render or whatever, is usually light coloured.

It doesn’t matter where the insulation goes. Every layer has a resistance value - R. The U value is derived by summing R. U=1/(sum R).

 

[noseall]

Of course there is

And I'm telling you it doesn't happen on a hot sunny day.

Robustly insulated houses heat up due to sun on the windows or thermal bridging. Not due to 'eventual leakage through the walls'. You will not see a scenario (certainly not in the UK) where this does happen.

 

[noseall]

It doesn’t matter where the insulation goes.

It does in terms of thermal mass. there's a tiny risk (1 degree difference) of external heat penetration with internally insulated (solid) walls.

 

[pete01]

Bloody hell nosall you must enjoy getting your arse kicked by motorbiking....all day every day...jeeezzzzzz

 

[noseall]

Bloody hell nosall you must enjoy getting your arse kicked by motorbiking....all day every day...jeeezzzzzz

Pfft.

The bloke is an illiterate dunce.

 

[Deleted member 317777]

Bloody hell nosall you must enjoy getting your arse kicked by motorbiking....all day every day...jeeezzzzzz

He’s trying to fight his way out, again ….

 

[motorbiking]

Robustly insulated houses

R = Resistance, not robustness.

 

[MNW67]

It does in terms of thermal mass.

That's a good point and yet another variable.

 

[Deleted member 317777]

Pfft.

The bloke is an illiterate dunce.

There’s a Meme for this. Who posted it recently?

@pete01 I’m sure it was you

 

[motorbiking]

That's a good point and yet another variable.

I'm sure between you, by the end of the night, you will have come up with your own formula.