BS 8414-1:2015+A1:2017 provides a test method for determining the fire performance characteristicsof non?loadbearing external cladding systems, rainscreen overcladding systems and externalwall insulation systems when applied to the face of a building and exposed to an external fireunder controlled conditions. The fire exposure is representative of an external fire source or afully-developed (post-flashover) fire in a room, venting through an opening such as a windowaperture that exposes the cladding to the effects of external flames, or from an external fire source.This British Standard does not cover the performance of glazed window openings or the detailing atsuch openings.This British Standard does not apply to curtain walling systems or systems that include glass panels.Cross References:BS EN 60584-1:2013BS EN ISO 13943:2010 BS 8414-2:2015Incorporates the following:Amendment, June 2017; Corrigendum, Septe