wall with anchors 12,068 W θint 20 ° C θext 0 ° C U1 0,078 W/m².K
wall without anchors 11,2 W 20 ° C 0 ° C 0,078 W/m².K
Χi = (Q1- Q2) / (θint - θext) Χi = (12,068 - 11,2) / (20 - 0) Χi = 0,043 W/K The thermography carried out on the next page shows the same result as the thermal bridge simulation (display above). We see that the attachment has the same temperature as the external surface, which means that the internal heat does not pass through the attachment. On the contrary, in the two plates on the bottom, because there is no insulation in the retightening around the attachment, the internal temperature appears clearly.
chap2 propreUK - Copy.indd 98
passive
architecture
98
24/10/2014 19:23:04