GREEN ROOF PLANTERS SOUTH EAST LONDON
The green credentials of two new apartment buildings in London were substantially enhanced with large green roof planters constructed on the external mezzanine walkways. Traditional soil would have created structural weight concerns so contractor Ground Construction Limited of St Albans, Hertfordshire selected the lightweight advantages of Leca® Lightweight Expanded Clay Aggregate as the growing medium for these attractive features.
Leca® Lightweight Expanded Clay Aggregate is a free draining, lightweight aggregate created by heating and firing natural glacial clay in a rotary kiln at up to 1150°C. This process transforms the clay into lightweight ceramic granules with a hard shell and porous core. The material is extremely light with a bulk density of just 0.3 tonnes per cubic metre. The granules are frost resistant and chemically inert, ideal for horticultural planting.
Amount of material: 55m3
Interesting Fact: The close confines of the construction site for these new apartment blocks in Bermondsey, South East London made access to the giant planters difficult and the problem was compounded by restricted hours of access.
Delivery Method: Pneumatic Delivery
Main Contractor: Ground Construction Limited