14 October 2016

What benefits are there regarding energy requalification of existing buildings

Buildings until only a few years ago, with either no or very poor thermal insulation, were responsible for 40% of global energy consumption. In fact they have long outdistanced various industries and transportation, traditionally perceived as energy-consuming and polluting.

That’s why the proper energy efficiency of a traditional building results in a drastic reduction of harmful emissions into the atmosphere, as well as an immediate and significant reduction of operating costs for maintaining ideal temperature and humidity regime environments. This intervention is thus a forward-looking economic investment, taking into account that the cost of energy from fossil fuels is going to rise, due to the increasing difficulty of finding raw materials.

The adoption of adequate shading systems that can intercept solar radiation affecting south east-facing window surfaces and even farther west, helping to reduce summer heat load translates into:

  • containment of inside temperature environments, avoiding uncomfortable overheating
  • cost savings of electric bills due to the cooling and dehumidification of the air

Filtering and shading solutions offered by Pronema, placed externally before solar radiation reaches the glass surface – modulating, external solar shading with technical shades and blinds of various types – are able to meet the requirements for reducing the effects of direct sun and Summer heat, whilst neatly folding away or changing postion, to ensure the maximum effect of heat input from Winter sunshine.
The external application of heat insulation of walls protects the Interior from climatic variations during the changing of the seasons and defends the building structures from the onset of condensation that might facilitate the proliferation of molds and hence decay.

Reduced costs for energy supply is not the only advantage that comes from living in a low-energy building.
Considering that we spend approximately 90% of our time indoors, the quality of our living environment represents an added value, which is difficult to quantify in monetary terms, but immediately perceptible by the body.
By improving the efficiency of the heating system in the context of independence by integration or even complete replacement of fossil fuel, means to freely determine. in economical terms, the energy management of ones own building.
Increasing the efficiency of a building also results in the growth of real estate value, due to its certified improved energy performance.


Posted by Alessandro Palazzo
​Architect. A ClimateHouse energy consultant who specialises in improving the energy efficiency of buildings. He is a professor at the Faculty of Design at Politecnico di Milano. Since 2010, he has been a European Commission consultant at the Joint Research Centre in Ispra (Varese).

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