Thermal transmission | Calculations | Istituto Giordano
Corrado Colagiacomo
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Corrado Colagiacomo
Tel. 0541 322.355
E-mail c.colagiacomo@giordano.it

Thermal transmission | Calculations

The Thermal Transmission - Calculations section deals mainly with the thermal characterisation of building shell elements by means of numerical simulations that can be used to declare the thermal performance of non-homogenous building shell elements as an alternative to physical tests. This activity is carried out in accordance with point 11, “Thermal Transmission Parameters” of the UNI/TS 11300-1 standard.
In addition, the section's staff is involved in a number of on-site and laboratory experimental activities related to the characterisation of certain elements of the building shell described below.
 
Below is a list of the main products evaluated by the Thermal Transmission - Calculations section divided between numerical simulations and experimental activities.

THERMAL ANALYSES THROUGH NUMERICAL SIMULATIONS
  • Frames: doors, windows and window doors, according to EN ISO 10077-1 and EN ISO 10077-2, in accordance with the harmonised product standard EN 14351-1.
  • Roller shutter boxes/shutter boxes according to EN ISO 10077-2.
  • Linear thermal bridges of side and sub-bridges for monoblocs and point thermal bridges of dowels and anchoring elements for external insulation systems according to EN ISO 10211.
    Thermal conductivity and thermal resistance using the hot plate method with guard ring (EN 12664, EN 12667 and EN 12939).
  • Blackout blinds (shutters, blinds, roller shutters, sunshades...) according to EN ISO 10077-1 and EN ISO 10077-2 in accordance with the harmonised product standard EN 13659).
  • Honeycomb polycarbonate panels according to EN ISO 10077-2 in accordance with the harmonised product standard EN 16153.
  • Industrial doors according to EN 12428 in accordance with the harmonised product standard EN 13241.
  • Curtain walls according to EN ISO 12631 in accordance with the harmonised product standard EN 13830.
  • Monolithic domes according to EN ISO 10077-2 and EN ISO 10211, in accordance with the harmonised product standard EN 1873.
  • Calculation of the thermal output of floor, wall and ceiling heating systems according to EN 1264-2 and 11855.
  • Components with homogenous stratigraphy (e.g. layered panels) according to EN ISO 6946.
  • Self-supporting panels with thermal bridges according to EN ISO 6946 and EN ISO 10211, in accordance with the harmonised product standard EN 14509.
  • Precast concrete elements according to EN ISO 10211, in accordance with the harmonised product standard EN 14992.
  • Continuous rooflights of plastic material with or without plinths according to EN ISO 10077-2 and EN ISO 10211, in accordance with the harmonised product standard EN 14963.
  • Calculation of dynamic thermal characteristics according to EN ISO 13786 (periodic thermal transmittance, internal and external thermal admittance, attenuation factor, phase shift, internal and external periodic thermal capacity).
  • Thermal resistance of masonry elements and thermal transmittance of masonry according to EN 1745.

THERMAL MEASUREMENTS IN THE FIELD AND LABORATORY
  • Measurement of the thermal transmittance of opaque elements (walls, floors, etc.) of the building shell using thermal flow meters, according to ISO 9869.
  • Thermographic inspection of building walls for qualitative analysis of thermal irregularities in the building shell, according to ISO 6781. The institute employs “Level 2 Infrared Thermografic Testing = TT” qualified personnel according to ISO 9712 and EN 473 in the field of non-destructive testing.
  • The dew point test on insulating glass units is according to EN 1279-6.
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