Horizontal drainage under slabs
Structural drainage covers any drainage system or product which controls groundwater, helps remove surface water or alleviates hydrostatic pressure.
The compacted fill for slab foundations are traditionally constructed using scarce and difficult to transport aggregate materials. These can be economically replaced using the teradrain© FDE-BAT product consisting of a non-woven sheet with a network of mini-drains fixed on a PE film. This can replace the need for separate drainage trenches, geotextiles, polyethylene film and filter stone.
