Green-Roof Trays: Saturated Weight, Drainage and the Gel Question
Every 100 g of gel per m² adds about 10 kg of saturated weight to a 120 mm tray. Load maths, pore displacement, and why sedum roofs often need zero.
Every 100 g of gel per m² adds about 10 kg of saturated weight to a 120 mm tray. Load maths, pore displacement, and why sedum roofs often need zero.
