The VersiDrain 6P from Elmich is a perforated interlocking plastic drainage sheet designed for use between the structural slab and sand or mortar screeds.
The under-screed drainage sheets are used in the construction of pedestrian walkways, plaza decks, balconies and verandahs.
The VersiDrain 6p drainage sheets create a ventilation cavity that allows entrapped water in the screed to escape via perforations and drainage channels in the sheet. This ensures that water and salts in the screed are prevented from migrating upward to the surface to form unsightly efflorescence and algae.
The drainage sheets also act as a separation layer and reduces tile and paver cracking caused by expansion of entrapped water and movement of the structural slab.