Calculate building mean U-value          SS-EN ISO 13789:2017,  SS 24230 (2) and  SS-EN ISO 6946:2007
        Material - layer  Reglar     
Envelope
member
Area U-
value
Väggsektion  Lambda Thick-ness Regel_bla Lambda Joists
area
share
 
ID m2 W/m2K   W/m K mm   W/m K %  
             
       
   Compensation for linear and point shaped  thermal bridges, add [%]  
   Calculated thermal bridges, add [W/K]  version: 2016-08-26