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Green shed roof construction.
Sample of gambrel truss plans.
For this shed i used 3x2 softwood timbers at 600mm 2 ctrs which spanned 1 2m 4 with an 18mm 3 4 plywood deck.
For a wildflower roof with a 150mm depth of the substrate work on loading capacity of 250kg per square metre.
The roof construction will be 48mm x 100mm 2 x 4 spanning approx 3 metres at 400mm centers.
There are some things you need to check before building but the job is not very difficult.
Building a green roof on your shed is a way to add interest to the shed and produce a new area to cultivate.
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.
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.
Make a birdsmouth notch at the end of each rafter to help it fit into place.
To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles.
To support lightweight sedum green roof construction your roof needs a loading capacity of at least 120 kg per square metre.
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 saturated these layers can weigh in at more than 100kg per square metre or 20lbs per square foot.
The walls will be framed from 50mm x 50mm 2 x 2 uprights with a 48mm x 100mm 2 x 4 top sill and cladding to the sides.
Slopes and angles for green roofs the pitch of your roof determines how fast rainwater runs off it.
I liked the idea of having a bit more greenery in the property we live.
Build a living roof green roof.
Building a shed roof with trusses.
Step 1 check if it is load bearing.
The roof will be an extensive green roof with a substrate thickness of approx 100mm.
For a first green shed roof i would recommend that you start off relatively small.
First cut your rafter boards to size using a circular saw to make sure they fit your roof.