How much drainage mortar and screed do I need?
Drainage mortar consumption per m² at 5 cm thick = 82.5 kg.
Screed consumption per m² at 0.5 cm thick = 10 kg, including compaction.
Drainage mortar consumption per m² at 5 cm thick = 82.5 kg.
Screed consumption per m² at 0.5 cm thick = 10 kg, including compaction.