Greek law on thermal insulation

Here are the U-value requirements according to the the latest Greek law, called ΚΕΝΑΚ (Κανονισμός Ενεργειακής Αποδοτικότητας Κτιρίων)  Greek State Journal B 407/2010 (9 April 2010)

According to the law there are four climate zonea (A, B, Γ, Δ). Maximum U-values for these zones are as follows

U (W/m2K)Zone ΑΖone ΒΖone ΓΖone Δ

Walls

 

Εξωτερικοί τοίχοι

 

0,60,50,450,40

Roof

 

ΣκεπήΕπίπεδη οροφή

 

0,50,450,40

0,35

Floors / pilotis

 

Δάπεδα

 

0,50,450,4

0,35