Retrofitting is a complex process, whether of a building or of a house. It is a combination of various construction and repair activities - thermal insulation, replacement of window frames, replacement of waterproofing, preventive maintenance of the heating system, etc.
The service life & exploitation period of the building get increased and its main functions preserved and in the case of a family home its overall “life” gets prolonged.
What gets optimized are both the comfort & convenience of the living and the resistance of the building to external atmospheric influences.
There is a reduction of the harmful emissions and the ecological environment is protected.
The costs for electricity and heating are significantly reduced thus increasing the economic efficiency.
An effect thereof is the increase in the property value, resulting in faster return of the initial investment.
By the partial thermal insulation of an apartment unit there is not much freedom, as the thickness, color, material of the adjacent insulation is to be taken into account. More autonomy for designing the exterior exists when renovating family homes.
The most commonly used thermal insulation materials in Bulgaria are stone or glass wool, XPS and EPS.