Drainage sheets - accessories Special accessories ensure proper installation of drainage that ensure the stability of the foil and the correct closure of the sheets so that it performs well in the long term. Stop bead for drainage sheets 08 Stop bead for drainage sheets 08 - perforated Stop bead for drainage sheets 20 Spiral anchor for ALU Stop bead for drainage sheets 08 Spiral anchors for drainage sheets Hardened steel nail with rubber plug Butyl-rubber tape