Drainage is a system for draining excess water from the ground. It is designed to protect foundations, basements, sub-basements and areas around buildings from the negative effects of water. It is mainly used in situations where the groundwater level is high or there is a risk of rainwater accumulating next to the building.
The drainage system usually consists of:
- perforated (plastic) drainage pipes,
- a filter layer (e.g. gravel, pebbles),
- geotextile fabric to protect against pipe siltation,
- inspection and collection manholes for water control and drainage.
The drain is laid around the building at the correct depth and with a gradient. So that the water flows by gravity to a discharge point (e.g. a ditch, absorption well or rainwater drain).
The purpose of drainage is protection of the building structure against moisture and washout, reducing hydrostatic pressure on foundation walls and improving ground conditions within the building. Drainage is a particularly important element for houses with a cellarThe design and construction of the building has a significant impact on the durability of the structure and the comfort of use. Its correct design and execution affects the durability of the structure and the comfort of the building.
