BS EN 15651-1:2017 pdf free.Sealants for non-structural use in joints in buildings and pedestrian walkways.Sealants for facade elements. BS EN 15651-1 This European Standard specifies definitions and requirements for non-structural facade sealants intended for sealing exterior wall joints, window and door perimeter joints in building construction,including the interior face.NOTE Provisions on assessment and verification of constancy of performance - AVCP...