You need to make sure the roof structure can take the weight of the green roof design you have in mind.
How to make a green roof.
A green roof is a specific type of roof arrangement over a building that is either partially or fully covered with growing medium as well as vegetation.
You might have to add more joists strengthen existing ones or add bracing.
Green roof weights obviously vary hugely depending on the type and amount of vegetation.
Any large slope or flat roof that s hard to reach makes a great area for this kind of vegetation as nature will take care of itself.
Green roof weight loading.
Make a normal flat or sloped roof into a beautiful living garden.
While redeveloping our house we decided to install a living roof on our kitchen roof why you ask.
It is planted over a specially designed water proofing membrane that ensures protection to the tradition roof of a building.
A sedum roof weight can be anywhere between 60 to 150 kg per square metre.
With an extensive green roof vegetation is thinner 1 6 to five inches thick and lighter with appropriate plants that will make them low maintenance and self sustaining.
Pro advice get a structural engineer to tell you what your existing roof needs to support the weight of a green roof.
Adding a green roof to garden buildings such as sheds and storage areas reclaims the space they take up as well as improving air quality and encouraging wildlife into the garden.
This article provides only a basic overview to get you started in thinking about the requirements for putting together a green roof.
Here green roof installer rob gaffney adds a second layer of rubber roofing membrane as a root barrier to prevent damage to the roof.
Step 6 if you re worried that soil may be too heavy place potted plants on the gravel.
Step 5 cut a piece of weed matting large enough to cover the roof and the inside of the frame.
Build a living roof green roof.
This improves the drainage of the green roof which helps reduce soil erosion and aerate plants.
Lay it over the gravel and attach to the frame using tacks.