Performance of windows and doors - Part 1: Classification for weathertightness and guidance on selection and specification
Executive summary
Classification and guidance on the exposure categories related to test pressure levels for air permeability, watertightness and wind resistance for external windows and doors.
Abstract
This British Standard a part of the BS 6375 series, specifies the exposure categories related to test pressure levels for air permeability, watertightness and wind resistance for external windows and doors.
This British Standard is applicable to vertical windows and doors, and includes windows in which the opening lights are not fully framed, e.g. adjustable glass louvres.
This standard excludes patent glazing and curtain walls that span across horizontal structural members of floors but includes the opening lights within a vertical patent glazing or curtain walling system.
An abbreviated method for calculating wind loading is given in an annex to this standard.
History and related standards
This British Standard supersedes BS 6375-1:1989 which is withdrawn.
This standard includes the following cross references:
BS 6399-2:1997, BS EN 1026, BS EN 1027:2000, BS EN 12207, BS EN 12208,
BS EN 12210, BS EN 12211.