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U Value Question

Atlantic1 · 2013-05-16 00:35:29

If you reduce the U Value of an external wall from 2.0 to 0.25, does that mean that it will take 8 times longer for heat to escape through the wall?

16-05-2013 12:35am

#1

Atlantic1

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If you reduce the U Value of an external wall from 2.0 to 0.25, does that mean that it will take 8 times longer for heat to escape through the wall?

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Comments

#2 16-05-2013 7:21am

sinnerboy

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U value measures the flow of heat per square meter per degree in temperature difference. It does not measure speed of heat flow as such.

So 0.25 from 2.0 means 8 times less heat will flow per per square meter per degree in temperature difference.

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#3 16-05-2013 9:27am

Atlantic1

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Posts: 308

Thanks.

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