Why Green Roofs?
A green roof is created when living plants are grown on a roof structure. Green roofs provide biodiverse green spaces attracting wildlife and creating colour.
Green roofs address many of the key issues associated with climate change reducing flooding and improving air quality.
Benefits of Green Roofs
• Promote Biodiversity - Creating a natural habitat, encouraging a wide range of insects, birds and butterflies, particularly in areas where the habitat has been ‘lost’.
• Combat pollution – green plants absorb noise, trap dust, recycle carbon dioxide, and absorb and break down many gaseous pollutants.
• Reduce the ‘urban heat island effect’ and the energy costs associated with keeping buildings cool in hot weather.
"One of the most exciting aspects of green roofs is their potential to support life in situations that would otherwise be largely barren and sterile.”
Prof. Nigel Dunnett, University of Sheffield
Types of Green Roof
New construction techniques mean that many types of green roofs can be created, from natural meadows and wildlife habitats to allotments and formal gardens the opportunities are endless.
Extensive green roofs are composed of lightweight layers of free-draining material that support low-growing, tough, drought resistant plants.
The lightweight substrate needs only minimal support from the building and because the plants are adapted to the relatively harsh roof top environment - high winds, hot sun, drought and winter cold - they require little maintenance.
For these reasons, extensive green roofs are growing in popularity and Lindum has developed a range of products particularly suitable for this type of situation.
Extensive green roofs are often not designed to be walked on and are therefore isolated from people, providing a very good undisturbed habitat for plants, birds and insects.
Intensive green roofs support a wide range of plants from small flowers to large trees. Requiring a high degree of maintenance and relatively deep substrates. They are relatively heavy and need a large amount of support from the building. They are what may be described as a ‘roof garden’.