Green Roof System For 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.

Green roof system for shed.

For a green roof installation that pitch should be at least inch per foot of run. Building a green roof on your shed is a way to add interest to the shed and produce a new area to cultivate. Step 1 check if it is load bearing. There are some things you need to check before building but the job is not very difficult.

For a first green shed roof i would recommend that you start off relatively small. Check that your shed is strong enough to take such weight and remember that the walls will also play a large part in bearing the load. For this shed i used 3x2 softwood timbers at 600mm 2 ctrs which spanned 1 2m 4 with an 18mm 3 4 plywood deck. Even a flat roof should have some pitch so that it sheds water toward gutters.

For plants to flourish on a green roof they will need moisture and drainage which means soil and a sturdy framework to keep it in place. Alternatively you can reinforce and brace the internal shed structure and roofing joists before fitting. 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. When fitting a green roof to a shed make sure that your shed roof can take the increased weight load from a green roof.

When saturated these layers can weigh in at more than 100kg per square metre or 20lbs per square foot. Green roof installation guide. You will also need to make sure that your shed s roof is waterproof.