scope:

This International Standard specifies a method to measure the solar heat gain coefficient of complete windows and doors. This International Standard applies to windows and doors: a) with various types of glazing (glass or plastic; single or multiple glazing; with or without low emissivity coatings, and with spaces filled with air or other gases); b) with opaque panels; c) with various types of frames (wood, plastic, metallic with and without thermal barrier or any combination of materials); d) with various types of shading devices (blind, screen, film or any attachment with shading effects); e) with various types of active solar fenestration systems (building-integrated PV systems (BIPV) or building-integrated solar thermal collectors (BIST)). This International Standard does not include: a) shading effects of building elements (e.g. eaves, sleeve wall, etc.); b) heat transfer caused by air leakage; c) ventilation of air spaces in double and coupled windows; d) thermal bridge effects at the rebate or joint between the window or door frame and the rest of the building envelope. This International Standard does not apply to: a) non-vertical windows; b) curtain walls and other structural glazing; c) industrial, commercial and garage doors.