Often planted with wildflowers and meadow grasses, beehives, bird baths and log or stone outcrops can also be included to provide an alternative ecological habitat.

A green roof can intercept 50% of annual rainfall and can be a useful contribution to a larger rainwater management scheme.

Protecting the roof membrane from the elements increases the lifespan of a roof from the average 20 years to 50-70 years.

Covering what’s usually a wasted area of a building with greenery can improve performance and aids compliance with environmental regulations and building standards.