Lightweight Soil Mix For Roof Gardens

Intensive is a blend of screened sandy loam sedge peat or coir and leca 4 10mm.

Lightweight soil mix for roof gardens.

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. Rooflite extensive the ideal growth medium for extensive green roof systems with hardy and drought tolerant vegetation. It can also be used as a bedding layer when pavers or patios are specified.

Soil s saturated weight can reach 120 lb ft 3 7 5 kg m 3 which is far too high for roof gardening. Supports growth of ground covers perennials ornamental grasses shrubs trees. Normally used at depth of 8 12 inches. Rooflite soil provides key features for excellent green roof performance.

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. For the best green roof medium the growing media should contain the following. These aggregates make a good basis for a growing medium. What was really exciting about rooflite is that they were interested in developing a high quality media mix to suit farming.

It s a huge deal you don t see that often. 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. Fytogreen australia s lightweight roof garden system works to the following depth and saturated weight guidelines. Lightweight planting mix is ideal for.

These materials are available throughout the west coast of north america. Saturated bulk density is 1200 kg m3 trees large to 12 metres. 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. The targeted saturated weight of roof top growing media should be 48 65 lb ft 3 3 4 kg m 3.

Lightweight volcanic aggregate such as pumice or lava. Coir is used if a peat free medium is required. Granular lightweight aggregate that creates a natural root environment and can be used as an alternative to a synthetic drainage layer.