Question

Is lower thermal conductivity better?

Answer 1

Answer:

Thermal movement is basically caused by the expansion and contraction of the fabric of the building due to hot and cold weather. ... Modern structures are sometimes built without any expansion joints so the thermal movement cannot be accompanied within the masonry so cracking occurs.

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Answer 2

Answer:

The lower the thermal conductivity of a material, the better the thermal performance (i.e. the slower heat will move across a material). It is measured in Watts per Metre Kelvin (W/mK).

Explanation:

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