Thermal and solar modelling and characterisation; the role of IEA SHC Task 27

The objective of Subtask A (“Performance”) of IEA SHC Task 27 “Solar Façade Components” is to further develop, structure and integrate the energy performance assessment methodology for windows and other solar building envelope components. Such a methodology will facilitate selection of components and enable comparative performance to be made. Particular emphasis is given to the assembly and integration of high performance, novel and/or complex solar components into functional building envelope elements. Those assemblies may incorporate highly insulating glazings/frames, anti-reflecting or chromogenic switchable glazings, PV windows, solar shading devices and other daylight components. The work intends to directly support manufacturers in improving product characterisation and specification. But also provide the necessary links to building simulation and building performance characterisation.