Passive house wall buildup The IG passive house shows on the fair this wall construction. With 50cm wall is u=0.1 achieved. Exactly what I promoted 1991.  

Passive house wall buildup

The IG passive house shows on the fair this wall construction. With 50cm wall is u=0.1 achieved. Exactly what I promoted 1991.

I started to calculate 1991 how my house should come throgh the winter in Austria. The result of the calculation u=0.1 was at this time extreme exotic. At this time was u=0.3 counted as a good insulation.

2007 is my caclulation at that time standard as passive houses.