Anyway, stepping away from theoretical physics for a moment, I do like to soak my sun hat in water, put it in the freezer for a while, then put it on my head...
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Cooling tips
- Thread starter MNW67
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Window amplifying the heat was never the issue.
Harry B claimed that an insulated wall would 'eventually or inevitably' allow the heat of the sun to pass through.
This is nonsense.
No. You tried and failed to show that insulated homes would overheat because they are insulated.
This was shown to be nonsense, even your own link said so.
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But it isn’t.
All the time there is a temperature difference heat will move from one to the other according to the thermal resistance of the wall.
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No the link was to introduce you to the concept of over heating.
The fact remains that if the heat can get in, it will stay there longer than a less well insulated home, due to thermal resistance.
If it’s cooler outside than inside. The transfer will happen quicker with a high U value.
Waffle. It does not happen.
Which showed you were wrong
Still wrong
Only in theory.
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Again you show a lack of understanding of the basics. I would ridicule you for it as is customary, but in an attempt to be less of an a***hole to less intelligent beings. I will simply point you here:
Thermal conductance and resistance - Wikipedia
Yep, and Professor Lomas says you are lying again....
Does insulation make your house hotter?
"Insulating homes has very little, if any, impact on the risk of overheating," said Professor Kevin Lomas from Loughborough University, who led the largest national study so far into overheating in homes.
Insulation can even help keep your home cool, because most types - certainly external wall and likely also cavity wall - will stop your home from getting as hot in the first place.
Other energy efficiency measures work both ways too: insulating pipes saves energy in winter by preventing heat from leaking - and so helping keep your home cool in summer.
The exception when it comes to insulation is if you have it on the inside of your wall, which can create a "small additional risk" of overheating by one degree Celsius or so, but only if your home isn't well ventilated anyway, explained Prof Lomas
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Oh good grief. Here we go it’s post-repeat-loop again.
Which works both ways i. e. heating and cooling.
And, in typical time frames ( the day - night cycle in general), the gradient will not be one - way nor steep enough for long enough to actually matter.
No I'm not.
Show me a well insuated internal (cavity) wall that has even changed temperature due to the external influence of the sun upon it and I'll eat my hat.
Correct.
The internal wall does NOT eventually heat up.
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I suggest you and brig go for a swim in the sea in March. Based on your knowledge you should find it’s just as warm as it is in September.
Solar gain through windows, is a major problem. Why do you suppose, that the ac system in your car, assuming it is more than a basic one, includes a solar sensor, which boosts the ac level when it sees sunlight? Why do you suppose in hot countries awnings, and window shutters are so popular, and why do you suppose I close my internal blinds?
If the sun beats down on a wall, no matter how good the insulation, the heat will get through to the interior, to some extent.
