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Clay Block and Walling Systems

U Value Calculator
 

Cavity

Desired U-Value
Internal Finish
Internal Plasterboard or Thermal Board
   
Cavity Insulation
Thickness
Clear Cavity Thickness -
External Skin
   
External Finish
Thickness
 
Porotherm Block Achieved U Value Wall Width
PTH 100 1.905 * 100
PTH 140 1.392 * 140
PTH 190 1.098 * 190
Please Review Insulation Selections

Please note: L = Lambda (W/mk)

This U value indicator is provided only for guidance EH Smith and Wienerberger accept no liability for error or ommision

Insulation and Render systems are shown for illustration purposes and should always be installed in accordance with the manufacturer's advice


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