Description The Sika® Cavity Drainage System Corner Piece is installed at the corners of a perimeter drainage channel system to allow continuity of the drainage system. Part of the Sika® Cavity Drainage System creates a water management system to control water after it has penetrated the structure. Utilising a high density polyethylene internal drainage membrane, the system is installed, loose laid in flooring applications and attached to the wall with surface plugs in vertical installations.
