Corrado Colagiacomo
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Corrado Colagiacomo
Tel. 0541 322.355
E-mail c.colagiacomo@giordano.it

Energy certification of buildings


Istituto Giordano determines the data necessary for calculating the energy performance of buildings as indicated in Para. 6.2 “Data relative to thermal and construction characteristics of buildings” according to UNI/TS 11300-1:
  • thermal transmittance of building envelope components (U);
  • the transmittance of total solar energy of transparent building envelope components (solar factor g);
  • the solar absorption factors of opaque components of the building envelope (a)
  • and emissions from the external surfaces of the building envelope (e);
  • reduction factors in the transmittance of total solar energy of transparent components of the building envelope in the presence of mobile shutters (F sh);
  • coefficients of the linear thermal transmission of thermal bridges (y)

The Heat Technology Department, in conformance with Para. 11 “THERMAL TRANSMISSION PARAMETERS” of UNI/TS 11300-1 carries out thermal characterisation of external building components, i.e.
  • thermal conductivity of materials with the guarded hot plate method according to UNI EN 12664 and 12667
  • thermal transmittance of opaque structures (masonry) by means of calculation according to UNI EN 1745
  • thermal transmittance of blinds and shutters according to UNI EN ISO 10077-1 and -2, UNI EN 13947
  • calculation of thermal bridges according to UNI EN ISO 10211
  • thermal transmittance testing of masonry in the hot box according to UNI EN ISO 8990.

    See the HEAT TECHNOLOGY section

The Optics Department carries out solar characterisation (testing transmission, reflection, absorption and solar factor) on:
  • materials for the building envelope (glazing, polycarbonate sheets etc.) according to UNI EN 144501 and UNI EN 13363
  • shutters and blinds (curtains, blinds,venetian blinds) according to UNI EN 14501 e UNI EN 13363
  • opaque components and materials of the building envelope (paints, waterproofmembranes)
     
IG also carries out testing acording to Para. 11 "THERMAL TRANSMISSION PARAMETERS" of UNI/TS 11300-1:
  • thermal transmittance of glazing according to UNI EN 673
  • normal (perpendicular) emissivity of specular surfaces (glazingss) according to UNI EN 12898
  • hemispherical emittance according to ASTM C 1371
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