Cellenbetonblokken G2 400mm R-waarde 5,06 Cellenbeton 50mm This means they have a

This means they have a radius of 700mm (including wall thickness)

The Efficient block from HplusH has an impressive R-value of 4

for example by thoroughly vacuuming

Aerated Concrete Block G6 500x250x365mm (pallet) - Applications and Properties

Cellenbetonblokken G2 400mm R-waarde 5,06 Cellenbeton 50mm This means they have aThe Efficient block from HplusH offers the option of insulated construction with aerated concrete. The wall can be built and insulated in one go thanks to the high insulation value of the aerated concrete block. Aerated concrete does not suffer from shrinkage or expansion, so no cracks or seams arise and the high insulation value is retained. New construction: The Efficient block makes airtight construction possible, which results in energy savings