KFW 55 - Insulation under the floor slab

Schröder Bauzentrum

I think I expressed myself a bit wrongly.

5 cm cost 9.71 € per square meter, so for 10 cm it was basically 19.42 €/sqm. Then it’s not really awesome anymore?!

Where do you find 6 cm + 4 cm for just under 12 €/sqm ops: or am I missing something?

Where do you find 6 cm + 4 cm for just under 12/sqm ops: or am I missing something?

6cm already costs 12€... therefore your 9.71 for the 5cm is pretty good...