Hi,
which solid wall construction should I use to achieve a minimum U-value of 0.15? It is important for me to have a slim wall, maximum 36 cm (14 inches).
Are filled poroton blocks very expensive?
Regards, ark
which solid wall construction should I use to achieve a minimum U-value of 0.15? It is important for me to have a slim wall, maximum 36 cm (14 inches).
Are filled poroton blocks very expensive?
Regards, ark