Lightweight Growing Medium Green Roof

Derived from 100 uk sourced materials.

Lightweight growing medium green roof.

These aggregates make a good basis for a growing medium. Types of green roofs. Lightweight volcanic aggregate such as pumice or lava. Experts in green roof soil more than a decade of experience.

Green roofs are made up of several layers typically a waterproof root barrier layer to protect the roof a drainage layer water retention mat then the growing medium and vegetation. The thickness of the drainage layer will depend on the roof structure and the water storage capacity required depending on the. In general the bulk of the water storage in a green roof buildup is in the growing medium. When saturated these layers can weigh in at more than 100kg per square metre or 20lbs per square foot.

For the best green roof medium the growing media should contain the following. It is simple to work with lightweight and offers guaranteed consistency throughout the green roof installation. With a full line of standard rooflite soil products including regional and project specific blends you can trust us to have the perfect soil for your project. These grow into the substrate as.

Substrate roll is a lightweight green roof substrate manufactured from long mineral wool fibres. 3 drainage including filterfleece 11 20 mm. Monday march 30 2020 susan parent in our previous article urban gardening a growing trend we discussed the basics of urban agriculture with a focus of growing plants on roof tops in this article we will discuss the ideal growing medium and properties required for roof top gardening. These generally require a 5 15cm 2 6in depth of growing medium that can consist mainly of lightweight inorganic materials such as perlite leca sand rockwool and crushed tiles or concrete.

Pumice is somewhat porous and is lighter than most aggregates. However the factors allowing for a lightweight roof can create a high stress environment for plant material. Green roof systems may be modular with drainage layers filter cloth growing media and plants already prepared in movable often. Lindum s green roof substrate provides good aeration and water holding properties and controlled fertility levels.

High quality green roof growing medium. All our products are created with our innovative proprietary product development process which is designed to ensure high quality soil that meets established industry. Extensive green roofs sedum mats sedum blanket green roof city of london. These materials are available throughout the west coast of north america.

Criteria for growing media for roof top gardening. A 20mm layer of growing medium is laid and sedum seeds or cuttings are spread across it. Three types of extensive green roofs 1. Sedum mats have a base layer of polyester hessian or porous polythene depending on the supplier.