Can Thermalite Blocks Get Wet

Thermalite blocks provide an excellent background for the use of internal and external finishes, such as plaster, render, painting or tiling.

Can Thermalite blocks used outside?

Thermalite blocks provide an excellent background for the use of internal and external finishes, such as plaster, render, painting or tiling.

Why do Thermalite blocks crack?

Thermalite blocks are prone to shrinkage. so long as the blocks dont appear on the outside walls this is probably the cause. British Gyprum only recommend boarding on thermalite as opposed to wet plaster because of this. Fill the cracks with a weak mortar and board over using dot and dab.