Experts in green roof soil more than a decade of experience.
Lightweight growing medium green roof.
Sedum mats have a base layer of polyester hessian or porous polythene depending on the supplier.
Three types of extensive green roofs 1.
Substrate roll is a lightweight green roof substrate manufactured from long mineral wool fibres.
A 20mm layer of growing medium is laid and sedum seeds or cuttings are spread across it.
It is a good growing medium and ensures good water absorption and tenacity.
Types of green roofs.
Criteria for growing media for roof top gardening.
All our products are created with our innovative proprietary product development process which is designed to ensure high quality soil that meets established industry.
These aggregates make a good basis for a growing medium.
These grow into the substrate as.
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.
Lightweight volcanic aggregate such as pumice or lava.
Pumice is somewhat porous and is lighter than most aggregates.
In general the bulk of the water storage in a green roof buildup is in the growing medium.
A green roof system is an extension of the existing roof which involves at a minimum high quality water proofing root repellent system drainage system filter cloth a lightweight growing medium and plants.
The thickness of the drainage layer will depend on the roof structure and the water storage capacity required depending on the.
When saturated these layers can weigh in at more than 100kg per square metre or 20lbs per square foot.
Extensive green roofs sedum mats sedum blanket green roof city of london.
Derived from 100 uk sourced materials.
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.
However the factors allowing for a lightweight roof can create a high stress environment for plant material.
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.
Green roof systems may be modular with drainage layers filter cloth growing media and plants already prepared in movable often.
The extensive green roof lightweight cost effective and probably the most popular of the green roofs.
Lindum s green roof substrate provides good aeration and water holding properties and controlled fertility levels.
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.
These materials are available throughout the west coast of north america.
