extensive green roof on a small shed

DIY Green Roof Guide

The online resource for building small scale green roofs on garden sheds, garages, house extensions and other small construction or retrofitting projects

a green roof on a new bike shelter

New Builds

A step by step guide to creating a SAFE and LEAK FREE green roof on a new small scale construction project. Learn from the vastly experienced authors how to accomplish it yourself or provide guidance to your contractors

poppy and harebell as green roof plants

Plant Lists

Planting suggestions focussed on native species that can provide the maximum biodiversity. Separate lists for the UK, Eastern USA & Canada, Mid-West USA

a small green roof on an electrical substation


Even the smallest of roof spaces can provide a small haven of beauty and a wildlife oasis. The retrofitting section advice can be used on garden sheds, cycle & bin shelters, the fundamentals remain the same!

gabion edge details of a green roof


From suggested screw sizes through edge details to drainage suggestions, John & Dusty take you through the process using text, photos, illustrations and videos

Celebration – 10 years of our online green roof guide

by | Feb 9, 2018

Celebration is due. Ten years ago, John Little and I put our heads together to write an online green roof guide. Why? Well, we were both getting so many emails asking questions about how to build green roofs.

Back then the original was a downloadable pdf. Now the guide is an all singing and dancing manual. This allows us to update with videos, sketches and new content. Much of the new content is generated by questions sent to us by email. So the guide is constantly being refined.

Celebration - green roof guide


Celebration – 2008 – 2018

Whilst our hair may have grown a tad greyer and we have aged, the thriving green roofs are a testament to the guide. From Australia to Montreal via Cornwall in the UK, wildflowers are flourishing. Whether they are on sheds, garages, outhouses or extensions the power of the guide to generate interest has inspiring. The other day when we posted a tweet online a great guy in Finland tweeted back:

We have been following Mikko on instagram for awhile now.  He is like so many people who get the guide. They want to build a building sustainably as possible. And I especially like Mikko’s work, because I have always wanted to go to Finland. And I am hoping to get there this year. If I am lucky, I will get the chance to visit his roof.

All pictures welcome to help us celebrate.

Celebration - online green roof guide

So if you have any pictures of a good green roof you want to celebrate, do send them to us. Of course we would love images of roofs that have been built using the guide. But that would be too ‘selfish’. We want to celebrate the guide. But we also want to celebrate green roofs across the world. You can send via contact here or tag @grassroofco or @greenroofsuk or @worldgreenroof. You can also send to Dusty’s facebook page.  Furthermore use the hashtag #smallgreenroofs. Don’t worry if they are huge, they hashtag will allow us to find you.