Flat roofs are an easier option from a green roof construction point of view but living roofs are able to grow on pitched roofs too.
How to install a green roof on a shed.
Before the plants go up a structural engineer should check to ensure that the roof can support the weight of the engineered growing medium and plants.
The steps to building a green roof are the same.
Roll over the root membrane.
This means that shed green roofs are a very popular choice along with log cabin and garage green roofs.
With a sturdy roof deck to support the roof the first step is to keep out the water.
How to build a green roof step 1.
Green roofs of creeping plants and herbs need some sort of frame around the perimeter to hold.
Having said that any outbuilding or garden building with a flat roof is a suitable route.
Pour on the bags of gravel your looking to get just a single layer cover over the entire roof 2.
Using rot proof timber build a frame around the roof to contain the garden.
It does not matter whether you choose a small diy green roof on top of your garage or if you get a professional to turn your sloped roof into a habitat for wild birds.
The membrane comes in a roll that was xm long and ym wide.
Brush into place 3.
Layers forming green shed roof.
For a green roof installation that pitch should be at least inch per foot of run.
Green roof installation guide sedum blankets substrate for the sedum to root to protective fleece waterproof membrane or pond liner staple gun tanalised timber to build a 3cm high lip around the existing shed roof scissors screw driver drill and bits rake reinforced shed.
Draining and root stopping 1.
The membrane i used to protect the roof deck was a 2000 gauge polythene damp proof membrane.
You will need two pieces of 2x4 timber the same length as the width of the roof and two pieces the same length as the depth of the roof minus 4 inches.
Planting a green.
Even a flat roof should have some pitch so that it sheds water toward gutters.
Green roofs are made up of several layers typically a waterproof root barrier layer to protect.
Creating the green shed roof growing medium.