The ceiling of the cellar was insulated with non-flammable Rock Mineral Wool lamellas, two VELUX® Sun tunnels were added in the hallway, all light bulbs were replaced with LEDs and nine ventilation devices with heat recuperation were installed. Finally, the old bio-mass central heating system was replaced with a heat pump.
Circularity awareness in renovation works
An important aspect of the project has been circularity — not landfilling used building materials but, for example, recycling or reusing them.
“There are challenges,” says Domen. “We know our Mineral Wool can be 100% recycled, but often it is hard to separate building elements for reuse after 50 years, such as ETICS facades which are highly predominant in Slovenian family houses, used in new builds and renovations. However, we are experimenting to find alternative more circular solutions.
“For example, a ventilated façade will be installed on one of the walls using the Knauf Insulation Diagonal 2H ventilated system which can be completely disassembled into primary elements. These elements can then be further processed and ideally returned to the material loop.