Thermal Properties
One of the useful features of corrugated cardboard is the presence of a multitude of air pockets spread throughout the product. As the air represents a substantial portion of the total cardboard volume, it
substantially reduces the thermal conductivity of the material.
A further test carried out by the CSIRO showed CeramiBoard® to have 40% higher resistance to heat flow than plasterboard and 300% higher resistance than fibre cement board (for equal thickness).
The actual R-value was in fact 0.233m2/KW for 28.5mm thickness versus plasterboard at 0.166m2/KW and fibre cement at 0.06m2/KW.
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K value
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0.1223W/mK
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R value
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0.233m2K/W
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