Heatwaves….can green roofs really cool us down?

The heat island effect

Understanding Heat Islands – Why Green Roofs can cool us down!

What is a heat island?

The heat island effect – The term ‘Heat Island’ describes built up areas (urban) where temperatures are much higher than its surrounding rural areas. Everyone has experienced this, even in a small scale. The feeling when you walk from a built up areas into a park or open space with trees and plants, you instantly feel cooler. You are experiencing the effects of the Heat Island Effect.

The Heat Island effect is created due to large populations, the increased amount of buildings, cars, industrial sites and polution.

Low Maintenance NOT No Maintenance

Green Roof Maintenance Services

Green Roof Maintenance

This is a huge mistake people are making after having a sedum green roof installed!

“Sedum roofs are a low maintenance roofing solution, NOT No Maintenance.”

Green roof maintenance is an essentional service to keep your sedum roof functioning efficiently.  Maintaining the roof system allows it to perform the same as the day it was installed. Providing environmental and aethestic benefits.

damaged sedum green roof


< Don’t let your green roof end up looking like this!

The results of no maintenance can be devasating.

Carrying out a routine maintenance service on your green roof can make all the difference to your invested money.

We recommend doing this every 12 months depending on the state of your green roof.

If you require any advice please contact our expert team on 01691 659618

Sedum Supply Green roof maintenance service


A green roof in West London looking superb after our maintenance

team carried out the routine service.



The GRO code of practice for Green Roofs

What is the GRO and what does it mean?

GRO = Green Roof Organisation. The Green Roof Organisation is for manufactures and installers of Green Roofs in the UK. An independent organisation which provides it members with guidelines for best practices for green roofs, setting standards for the design, installation and maintenance of Green Roofs in the UK.

The Code

This code has been developed in partnership with national and European experts, including The Green
Roof Centre at the University of Sheffield, Livingroofs.org, GRO (Green Roof Organisation) members, the
Environment Agency and Homes and Communities Agency and Groundwork Sheffield.

The code was first published in 2011 then revised in 2014. It provides manufactures, installers and anyone interested in green roofs, valuable information and advice on all aspects of green roofing. It includes specifying, designing, installing and maintaining living green roofs.

The code also includes details on structural requirements, drainage systems, fire safety, substrates, irrigation and all other aspects.

Where can I find the GRO Code of Practice UK?

Sedum Supply ltd recommends reading the code if you are planning on having a green roof installed. Whether it be a small sedum shed roof or a large commercial project. The code can be viewed here.


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