Press Archive


Celebrating 10 years of Optigreen UK

This April marks the 10th anniversary of the establishment of Optigreen Limited in the UK.

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Designing green roofs in BIM

15 green roof build-ups in BIM library

Green roof systems from Optigreen are now available as BIM objects in addition to DWG, PDF and JPEG formats.

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New Partner Announcement – Sweeney Landscape Design



We would like to welcome Belfast based Sweeney Landscape Design as a new silver member of the Optigreen Partner Network.

With a background in environmental conservation, company director Noel Sweeney is an advocate of the naturalistic style of planting and sees green roofs as a natural progression from this.

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Optigreen at Specifi

Optigreen are pleased to announce that we will be participating in two Specifi events this year.

Specifi create engaging and unique events which are free to attend for professional specifiers across architecture, landscaping and urban design. They are a unique opportunity to network with key decision makers in a relaxed environment and showcase why Optigreen is the ‘go to’ company for green roofs.  

Optigreen will be exhibiting at:
Sheffield Design – 26th June
London Landscape – 25th September

To register your place or to find out more information on these events check out their website:

Optigreen launch new RIBA approved CPD


Optigreen are pleased to announce that we are now a member of the RIBA CPD Providers Network.

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Optigreen Editorial Archive 2017


At Optigreen, we believe it’s important to constantly improve industry knowledge on the evolving green roof market. That’s why we focus our editorials on educational pieces demonstrating there is no one size fits all when it comes to green roofs.

For your reference and reading enjoyment, here are the articles we produced in 2017:

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Optigreen Green Roof of the Year Winner 2017


Green Roofs are not just focused to big cities. Improvements to our environment, both on an ecological and social scale are important nationwide, and some impressive projects are going up in far flung corners of the UK as specialist green roof installers Bridgman & Bridgman can attest to.

Having recently completed a project in the Outer Hebrides, Chris Bridgman explains the considerations and planning needed when installing a green roof in a location with challenging environmental factors.

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2017 Annual Partner Conference Review


On 19th September, we hosted the 2017 Optigreen Partner Conference.

This year the event was held at the beautiful De Vere hotel Theobalds Estate in Cheshunt, Hertfordshire.

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Enhanced Water Management for Green Roofs


Optigreen now have a suite of products to provide solutions for where greater levels of water management are required within green roof specifications.

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Now Available - New Technical Brochure from Optigreen


We are pleased to announce that we have released an updated version of our fully comprehensive Technical Brochure.

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Changes to the team at Optigreen


We have been through some changes here at Optigreen recently .

In October last year, Nick Day took over as managing director following the departure of previous MD Stefan Zeller.

Since then we have seen a few new faces joining the team, as well a change in roles for others.

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Roof greening system that has proven itself over decades:
Nature Roof system solution. Biodiversity, species protection and nature conservation


Greened roofs combine a variety of positive effects. Perhaps the most important and understandable argument in favour of green roofs is their role as an “ecological balance”. With its Nature Roof campaign and the Nature Roof system solution, Optigreen international AG presented a green roof structure over 20 years ago that displays greater ecological significance than frequently-used simple sedum roofs thanks to its biodiversity (species and structural diversity).

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Managing changes at Optigreen


Changes have been announced within the management structure at Optigreen. Our current Managing Director, Stefan Zeller, will be leaving the company to return to his native Germany. He will be replaced in this position by our current Technical Sales Director, Nick Day, who has been with the company for nearly five years.

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Innovative rainwater management: weather app controls drainage from green roof


Around 74 hectares of natural space is sealed off in Germany every day. These areas are disappearing from the natural water cycle over the long term. The drainage system is outdated and insufficient in almost every town and city. Investments and expansions in the existing system are very costly and are thus avoided. The more affordable solution is to restrict the discharge permitted into the overloaded drainage network. What’s more, flooding verification in accordance with DIN 1986-100 has increased in importance over recent years. The quantity of water produced should be verifiably retained on one’s own property without buildings becoming flooded.

Optigreen international AG has kept abreast of these developments and developed the flow control-type “retention roof” system solution in the versions “green roof” and “public roof”. This means there are now innovative solutions for setting a specified maximum discharge and to thus observe the restriction on discharge into the drainage system

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The success story of the Optigrün international AG Partner Network continues


Between January and March of this year a total of ten internal seminars for continuing education were held, during which nearly 300 professionals of the Optigrün International AG Partner Network were brought up to date with greening of buildings.  In the course of these seminars participants were trained in the use of new products and System Solutions and informed about legal updates. This is the only way to maintain the high level of quality and fair market values associated with the Optigruen brand.

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New "Anti-Slip System"

Optigreen have developed a new and cost effective anti-slip system for extensive pitched green roofs. Called the Optigreen Type P system, it uses their new FKD 58 SD board and is suitable for sloped roofs between 15 and 35 degrees pitch. The specially designed drainage and water storage board is manufactured from pressure-resistant EPS (Expanded Polystyrene).

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New: Children's book about Roof Greening


"Four Friends find a New Home" - is the title of a recently published Children's book by Optigreen. Lilly the butterfly, Marie the ladybird, Tom the snail and Nils the grasshopper have a happy life in a flowering meadow. But one day, their living space is destroyed and they have to search for a new home...

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GREENING OF A BUILDING  – IMPLEMENTATION OF A “GREEN SHROUD“ There is often the talk of greening the complete outer surface (four walls and the roof) of a building and provide it with a “green shroud“.  This was done in Eupen, situated just over the border into Belgium, where the new Parliament building of the German Speaking Community is situated. The project was implemented in an exemplary manner over 635 square meters of roof and walls greening.

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At Optigreen Limited presents their new internet presence.

The homepage already shows how much information is provided on the website: system solutions, planning aids with downloads (CAD drawings, data sheets, technical subjects) and a short description of Optigreen Limited with contacts and international contacts. Furthermore news and fair events are easily viewable.

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