1978 apartment building with 7 units, total floor space 554m2
Energy consumption reduced from 161,000kWh/yr to 56,000kWh/yr
(2010 to 2016)
Due to the reduced heating energy demand, a much smaller heating system (combi boiler for hydronic heating) could be installed, accounting for additional savings.
Internal coating with MIG-ESP® resulted in 35% energy savings (adjusted for other measures taken, i.e. new heating system). Payback period was 2.7 years, compared to more than 50 years for traditional insulation.
The laundry (with 7 washing machines and dryers, as well as clothes lines) has dry walls and not the usual soapy smell.