How To Make A Sedum Roof On A Shed

This will stop the sedum matting from drying out at the edges.

How to make a sedum roof on a shed.

In this example i have used a pent shed roof rather than an apex which is easier to demonstrate on. The frame can be made by simply nailing the corners together or by using l brackets to form the corners. Now comes the growing medium which for a sedum roof should be at least 8cm 3in deep and for a roof of wildflowers herbs salad and strawberries at least 15cm 6in deep. This will protect the roof of the shed from any potential water damage.

1 build the tanalised wooden roof frame. Fasten the truss by driving 8d finishing nails at an angle down through the board just above the birdsmouth notch and into the underlying wall plate. Remember the plants at the top of the roof will receive less water than the plants at the bottom so make sure this is taken into consideration when planting or laying sedum. Sedum plants herbs wild flowers and grasses work best as they are more resilient than most while still attracting a wide range of wildlife.

Using rot proof timber build a frame around the roof to contain the garden. Build the frame so it provides a 3cm lip around the roof felt for the substrate and sedum blanket to be. Lower the first rafter truss into place at either the front or back of the shed. Lift the wooden frame into place.

It will also protect it from wind uplift. 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. Line the roof of your shed with a piece of plywood wrapped in waterproof butyl lining. The first job is to fix an edging to the roof.

Attach the end rafters to the wall plates of your shed frame. Use 3 nails for each side. An online guide to building your own small scale green roof. Whether you want to know how to make a green roof for your shed garage or house extension we hope to provide a clear pathway to accomplishing it.

An all purpose soil less peat free potting mix is fine for growing herbs and other edibles but mix in plenty of perlite to both improve drainage and save on weight.