Retrofitting insulation
Insulation retrofit is the key way to save energy in existing buildings. The first energy requirements for buildings were developed in the 1960ies and 1970ies, but many countries still do not have sufficient energy requirements for new buildings. In most countries the insulation level is very poor, the more so in countries where energy costs are state-subsidised.
The need for insulation is found in all main envelope constructions of a building: external walls/facades, roofs, floors and foundation. Moreover, pipe and boiler insulation is one of the most cost-effective insulation investments, often with a payback time of only a few months.
Insulation is the key way to save energy in existing buildings.No insulation in too many existing buildings
Usually, there are also many thermal bridges in old buildings due to gaps in the insulation layer. In some cases, the initial insulation work was not carried out carefully enough. In other cases, the thermal bridges have arisen over the years, e.g. by boxes and other items put on the roof insulation, or by spotlights and other installations penetrating the insulation.
The Rockwool Group has developed systems to fulfill the need for energy refurbishment and low energy building envelopes. They include high-performing systems for façade and roof insulation and for air tightening of buildings.
