Historical
DIN EN 13947:2007
Thermal performance of curtain walling - Calculation of thermal transmittance; German version EN 13947:2006 (Foreign Standard)
This standard gives a method for carrying out a calculation of the thermal transmittance of a curtain wall system that consists of glazed and/or opaque panels fitted in frames or sashes, both with and without shutters. This method accommodates different types of glazing, frames made mainly of metal, timber and UPVC with or without thermal break and different types of opaque panels clad with metal, glass, ceramics or any other material.
Deutsches Institut für Normung [din]