Thermal transmittance U-value (W/(m²K)

Calculation of the thermal transmittance is based on the numeric method according to EN ISO 10211 and EN ISO 10077-2.

  • heat transmission resistance at the inner surface Rsi = 0.13 m2K/W
  • heat transmission resistance at the outer surface Rse = 0.04 m2K/W
  1.  Analysis of the functionality concerning the moisture conten must be performed with specially validated simulation programmes such as WUFI and cannot be carried out according to the glazier`s method. Analysis must be performed by a skilled person experienced in the field and contain information on condensation risk.