To restore and renovate condominiums
ReQuality realize projects that include restorations and renovations of condominiums, starting to accurate energy diagnosis to maximize savings frequently placed in Liguria.
We make interventions on walls, ceilings, balconies and replacement of fixtures; we increase systems efficiency, reducing operating costs.
In our works we compare different possibilities of interventions, costs and benefits.
Today the best solution includes to restore and renovate at the same time.
A great percentage of buildings in Liguria and on italian land have been built in 60’s when a lot of apartments were built, buildings consumed a lot, as 240 kWh sm/year.
It depends on the poor isolation capability of the walls (the tipically “Cassa vuota con intercapedine”) and of the windows (made in wood with a single glass); other cases include heating systems, which were oversized, with high consumption and pollution.
We can say that noweday buildings have the same consumption of the ’60s, even worse because of the damagies dued of their aging.
If a rational approach could be applied, big improvements would reached: in fact condominiums have a compact structure, often with a central heating and an available roof for photovoltaic and solar systems.
Above all, it’s important to isolate the building with a thermal coat and also with the replacement of the features; at the same time, it’s useful to renovate the systems in an innovate way: for example with the installation of photovoltaic system that sends hot water to existing radiators and using a heat pump.
Making these adjustments, we can decreasethe consumption from 240 kW to 50 kW /sqm/year (we can notice a reduction of about 80%), producing the necessary energy by its own.
In this way the building has been renovated, owners life has been improved and the building value on the real estate market has been increased.
In Genoa we worked on 2 large condominiums which have 14 and 26 apartments, and we improved their energy class (from G to C, and from G to A+) with the same approach: the isolation of walls, roof, balconies; the installation of a photovoltaic system to produce the necessary energy for a heat pump; the use of themostatic valves.
In Savona we worked on two other situations reaching a reduction in energy requirements of 64%.
One of these was caracterized by the replacement of shutters, the isolation with a thermal coat, the improvement of systems. We obtained a better energy class and energy saving up to 78%.
In the second case, apartments included independent heating system: in each one we propose to install small condensing boilers of low power (9kW), coupled with accumulations of 120 liters for domestic hot water and thermostatic valves on radiators.
