Lightweight Soil Mix For Roof Gardens

Hydrocks the same material used in lightweight concrete provides the structural strength in the soil mix while the special blend of clay and erth food provides the microbes and nutrients to create a living soil able to breakdown contaminants cycle nutrients and feed the landscape.

Lightweight soil mix for roof gardens.

Rooflite offers a full line of lightweight soil products meticulously engineered for a diverse range of green roof applications and designed to optimize green roof performance. Use on roof gardens where a free draining friable material is required and where point loading is critical. Normally used at depth of 8 12 inches. The targeted saturated weight of roof top growing media should be 48 65 lb ft 3 3 4 kg m 3.

An ideal rooflite soil for intensive green roofs rooftop gardens container gardens planters. Soil s saturated weight can reach 120 lb ft 3 7 5 kg m 3 which is far too high for roof gardening. Rooflite soil provides key features for excellent green roof performance. It can also be used as a bedding layer when pavers or patios are specified.

Rooflite extensive the ideal growth medium for extensive green roof systems with hardy and drought tolerant vegetation. Saturated bulk density is 1200 kg m3 trees large to 12 metres. Supports growth of ground covers perennials ornamental grasses shrubs trees. This soil mix consists of fully decomposed organic compost lava sand texas greensand and a soil sand mixture all of which is specially formulated to create the ideal organic growing environment please read the vegetable gardening best practices document and view the 4 year vegetable garden timeline.

What was really exciting about rooflite is that they were interested in developing a high quality media mix to suit farming. Lightweight volcanic aggregate such as pumice or lava. Coir is used if a peat free medium is required. These aggregates make a good basis for a growing medium.

It s a huge deal you don t see that often. Can be used in combination with rooflite intensive base and rooflite drain to provide deeper root space. The soil mix is 50 washed sand 40 hydrocell flakes and 10 composted organic matter by volume. Fytogreen australia s lightweight roof garden system works to the following depth and saturated weight guidelines.

We provide growing media for both intensive and extensive roof gardens. These materials are available throughout the west coast of north america. Granular lightweight aggregate that creates a natural root environment and can be used as an alternative to a synthetic drainage layer.