In Hofheim am Taunus, three structurally identical double-family houses were refurbished according to different energy standards, allowing for a direct comparison. The pre-fabricated, storey-high insulating elements represent a new kind of facade heat insulation. They are thinner than the traditional insulation due to their integrated vacuum panels and do not stick so far out onto the public pavement.
more details Three residential buildings in Hofheim – a comparison of energy standards