Environmental Engineering Reference
In-Depth Information
use of the real environmental conditions and use of buildings, which are by their
nature variables of the problem.
This leads, then, to a design that uses standard solutions, compared with home
automation solutions that allow the automatic adaptation to environmental vari-
ables and use of the buildings, thus contributing significantly to arrest the increase
in efficiency and the evolution of a real estate market in which highly energy
efficient technological systems can be valued like other valuable features of the
buildings.
In what follows, a summary of the current European directives on energy
efficiency in buildings and on the installation of renewable energy sources
systems and of the relevant transposition norms in the Italian context is reported.
The directive 2002/91/CE ''EPBD'' was adopted in Italy with two legislative
acts: the decree of August 19th 2005 nr. 192 then modified by the decree
December 29th 2006 nr. 311, which has proposed the general framework for the
implementation of the directive and has updated the efficiency requirements and
the compulsory transmittance values for the parts of the building envelope. These
decrees have then been integrated by two decrees: the decree may 30th 2008 nr.
115 (then modified by the decree 56/10) and the decree April 2nd 2009 nr. 59. The
first implementing the directive 2006/32/CE and introducing novelties in terms of
volume prizes in case of the use of systems to increase the efficiency of the
building envelope; the second actuating some of the points of the decree 192/
2005
,
by defining the technical norms to be used for the calculation of the energy
performance of the building.
The decree nr. 63/
2013
coordinated with the Law nr. 90/2013 transposes the
EPBD Recast (Directive
2010
/31/UE); they introduce fiscal detractions for energy
efficiency interventions. They also claim the need of an Action Plan to make
compulsory the Near Zero Energy Buildings construction in public administrations
by 2018 and in the private sector by 2021. As far as the RES integration in
buildings is concerned, the decree 28/
2011
implementing the directive 2009/28/CE
is still valid. In the decree at articles 11-12 are specified the obligations
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when
installing RES in new or strongly restructured buildings.
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In the case of new buildings or buildings undergoing major renovation, facilities for thermal
energy production must be designed so as to ensure the respect of the contemporary coverage,
through the use of energy produced by plants fueled by renewable sources, of 50 % consumption
required for domestic hot water and defined percentage of the sum of the estimated consumption
for domestic hot water, heating and cooling, variables with respect to the date of presentation of
the building to the municipality. These obligations can not be fulfilled by renewable energy plants
that produce only electricity which, in turn, devices or equipment for the production of domestic
hot water, space heating and cooling.
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Article 2, comma 1-m of the decree 28/2011: ''building strongly restructured'' is a buildings
falling into the following categories:
(i) existing building with a floor area greater than 1,000 squared metres, subjected to integral
restructuring of the building elements of the envelope; (ii) existing building subjeced to demo-
lition and rebuilding also in extraordinary maintenance.
