UNE-EN ISO 10211:2022

This International Standard sets out the specifications for a three-dimensional and a two-dimensional geometrical model of a thermal bridge for the numerical calculation of:¾ðheat flows, in order to assess the overall heat loss from a building or part of it;¾ðminimum surface temperatures, in order to assess the risk of surface condensation.These specifications include the geometrical boundaries and subdivisions of the model, the thermal boundary conditions, and the thermal values and relationships to be used.This International Standard is based upon the following assumptions:¾ðall physical properties are independent of temperature;¾ðthere are no heat sources within the building element.This International Standard can also be used for the derivation of linear and point thermal transmittances and of surface temperature factors.Table 1 shows the relative position of this International Standard within the EPB set of standards.