Green walls – more than just painted green.

As the call for action increases to address man-made climate change, one might think ‘what can I do’? There are at least four walls to each house, it may not immediately come to mind, but these walls can be perfect support for living ‘green walls’.

Green walls are landscaped surfaces partially or completely covered with a variety of vegetation that typically include plants, growing media and a water/fertiliser delivery system.

Research has shown that green walls can reduce energy requirements (both heating costs in the winter and cooling costs in the summer); improve air quality (whether inside or out) and increase property and amenity values. These are a few of the benefits of green walls; for an extensive overview of the benefits of indoor plants, click here.

Although traditionally Australia has trailed behind other countries (e.g. Canada, Germany and the U.S.A.) we have vast potential and now some of the world’s largest examples of commercial green walls and an explosion of home-based green wall installations.

Due to the unique demands place upon the vegetation used in green walls, low growing succulents and drought tolerant perennials are often used; this includes many Australian plants. It may seem intimidating when considering a fundamentally different style of wall than you have had previously, however a good start is with Ecospecifier.com.au’s rich and extensive database of sustainable, ‘green’ products; this includes green wall components, installers and much more.

Elmich – Green Roofs & Wall systems is a perfect example of what Ecospecifier has to offer. This product is an effective green roofing and wall system that has been proven to have multiple benefits such as reduced water run-off, reduce demand on cooling and improved air quality.

Whilst there are disadvantages of green walls (primarily the expense and level of maintenance required); green products are the way of the future. They may seem intimidating and mysterious at first, but with Ecospecifier even the greyest areas of understanding can be explained. Green products are the way of the future and what better way to become green than with green walls!

Explore more about the product ranges that have been eco-certified and listed by Ecospecifier, by using the Product Search Engine on Ecospecifier Global: http://www.ecospecifier.com.au

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green covered roofs

What Are Green Roofs?

A green roof or otherwise known as a living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproof membrane. Green roofs often also include a root barrier layer, drainage layer and, where the climate necessitates, an irrigation system. They have multiple environmental benefits at a variety of scales. Benefits for individual buildings include increased roof life, insulating properties that lead to greater energy efficiency through reduced summer cooling and winter heating costs and attenuation of inside and outside noise levels.

Green roofs have two different categorisation; intensive and extensive. Intensive, with deep growing medium, irrigation, grasses, shrubs, trees, and on slopes less than 3%, traditionally support 50 to 120 kg/m2 of vegetation. Labelled intensive as this category of green roofing is labour-intensive, requiring feeding and other up keep maintenance; these are commonly used for easy access and may include such vegetation as kitchen herbs.

Extensive, with less than 300mm depth of growing medium, minimal irrigation with hardy, low growing plants and ground cover species, with slopes up to 30% and usually support 390 to 730 kg/m2 of soil/media and vegetation. Extensive green roofs, by contrast, are designed to be virtually self-sustaining and should require only a minimum of maintenance, perhaps a once-yearly weeding or an application of slow-release fertiliser to boost growth. Extensive roofs are usually only accessed for maintenance and are typically 750-1500kg/m2 depending on soil thickness and type.

Plant selection was more important than other choices for green roof profile structure. It is common to use native species because of their real and perceived benefits, such as their longevity without the use of pesticides, fertilizers, or irrigation. While plants could not actually be native to rooftops, many plant species have evolved in extreme environments and are adapted to green roof conditions. However, native species are not necessarily more successful on green roofs than non-native species.

Explore more about the product ranges that have been eco-certified and listed by Ecospecifier, by using the Product Search Engine on Ecospecifier Global: http://www.ecospecifier.com.au

Join us in more conversations about green products and sustainability issues on our social media pages:

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Traditional Norweigen grass roof house - photo by Kjetil Bjørnsrud

Join our Social Media Honour Roll – support the switch to green products

Like, Comment and Share our blogs and posts on your social media pages … and we will send your name out to more than 15,000 subscribers via our monthly Ecospecifier Global Newsletter.

See which stellar individuals, businesses and networks made the latest Honour Roll on Twitter and Facebook HERE We salute you in helping us educate and help more people #MaketheSwitch to #EcoResponsible products.