A 7 story social housing apartment building in Athens, Greece has been
renovated following a holistic energy efficient retrofit process. The
retrofit plan, resulting from tenant surveys, environmental parameters
monitoring and extensive energy simulations, included commercially
available technologies like insulation and energy efficient windows,
innovative technologies like energy efficient lighting and smart
coatings, passive techniques like night ventilation as well as RES,
aiming to transform this inefficient building into a near zero energy
one, achieving a reduction of the energy consumption and CO2 emissions
by 80% and significant improvement of thermal comfort conditions. An
experimental campaign has been executed in order to measure and validate
the energy savings and indoor comfort conditions before and after the
retrofit. The results of this monitoring procedure are reported and
analyzed. Measurements include air leakage and thermal imaging for
determining leakage rate and heat loss through the building fabric,
smart meters to record energy consumption and indoor and outdoor
environmental measurements. The opinion of the occupants is taken into
account through pre- and post-retrofit surveys. (C) 2017 The Authors.
Published by Elsevie
