Once the green roof structure has been built adding the drainage and plants is easy.
Green roof substrate diy.
That original information has been taken and updated new and redrawn diagrams made and multi media items added.
I m putting a green roof on a small bike shed.
Growing substrates for green roofs are typically composed of a mix of inorganic mineral and organic components.
I liked the idea of having a bit more greenery in the property we live.
Diy green roof substrate.
The substrate contains many organic elements needed in ecological cycles.
The growing substrate supplies water and nutrients to plant roots ensures gas exchange at the roots and provides anchorage to support plants.
Simply cut the three layered drainage provided and fit it to size add a 30mm layer of substrate over the top and rake it until smooth.
While redeveloping our house we decided to install a living roof on our kitchen roof why you ask.
Whether you re choosing to go with an extensive or intensive treatment the primary layers of the green roof will remain the same.
The makers of live roof a modular green roof system have developed their own brand of green roof substrate which aims to increase soil lifespan and reduce substrate shrinkage by incorporating a high percentage of inorganic material 94 and avoiding the use of peat moss compost and perlite all of which can break down and erode after exposure to the elements.
Build a living roof green roof.
They can include scoria ash pumice sand coir pine bark porous chemically inertfoams and even recycled materials such as crushed bricks and roof tiles.
In addition the system uses clay to bind nutrients a buffering agent to reduce the impact of acid rain and a disease.
A single sheet can be used to cover the whole area and keep the water and roots from reaching the roof.
An extensive substrate soil is then poured over the vegetation mat.
It s 2x1m with a 10cm depth and it s sloped so drainage won t be an issue.
Spreading substrate soil for green roof.
The first layer should consist of a water and root proof membrane.
Make a normal flat or sloped roof into a beautiful living garden.
September 2018 in problem solving.
A 40 litre sack of substrate mix will cover an area of 1 square metre at 40mm deep.
This website based guide builds on the material and information in our original pdf the diy guide to green living roofs which we published in 2008.
This online guide is designed to meet the needs of diy enthusiasts looking to put a green roof on a shed or outhouse builders and landscaper contractors who want to build green roofs.
Substrate for green roofs.
This is the ideal depth for an extensive green roof.
