Bfl-s1 is a European reaction-to-fire classification for floor coverings under EN 13501-1. The “fl” suffix identifies the product as flooring. “Bfl” indicates strong control of flame spread and fire contribution for a floor covering, while “s1” identifies low smoke production during the relevant test procedure.
For buyers, the practical value is not the label alone. The classification should connect to an exact product code, construction and test report. Core formulation, decorative layers, wear surface, attached backing, installation method and tested substrate can all influence which result applies.






