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Green Roof
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Green Roof
/ Living Roof Systems
Flat Roof
- Terraces
- Decks
-
Balconies
- Gutters
- Canopies |
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What Are Green
Roofs? |
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Green Roofs are vegetated layers
that sit on top of the conventional waterproofed roof surfaces
of a building. Whilst green roofs come in many different forms
and types, usually a distinction is made between Intensive,
Simple Intensive and Extensive or Wildlife Roofs. These terms
refer to the degree of maintenance the roofs require.
As you can imagine, the addition of a green roof to an otherwise
unused area on a building, is beneficial in many ways. The
benefits are not only to the surrounding environment - there
are also other advantages to be aware of, such as waterproofing
membrane protection, storm-water retention, reduced energy
consumption, improved air quality, sound insulation, reduction
of the urban heat island effect, aesthetics and increased
property value. The advantages are growing!
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Intensive Green Roof: |
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- Is
only accessible for inspection and maintenance.
- Requires very low maintenance.
- Aesthetic & ecological
function.
- On wood, metal and concrete roofs.
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Intensive Green Roofs are composed of relatively deep
substrates and can therefore support a wide range of plant types
including trees and shrubs as well as perennials, grasses and
annuals. As a result, they are generally heavy and require
specific support from the building. Intensive green roofs (what
most people think of as roof gardens) have in the past been
rather traditional in their design, simply reproducing
landscapes found on the ground, such as lawns, flower beds and
water features. However, more contemporary intensive green roofs
can be visually and environmentally exciting, integrating water
management systems that process waste water from the building as
well as storing surplus rainwater in constructed wetlands.
Because of their larger plant material and horticultural
diversity, intensive green roofs can require a substantial input
of resources - the usual pruning, clipping, watering and weeding
as well as irrigation and fertilization. |
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Simple Intensive Green Roof: |
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Less accessible.
- Intended for aesthetic
purposes.
- Still allows choice of vegetation.
- Requires less maintenance.
- Fewer
structural demands. |
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Simple Intensive Green Roofs are composed of
lightweight layers of free-draining material that support
low-growing, hardy, drought-tolerant vegetation.
These simple
intensive green roofs have great potential for wide application
because, being lightweight, they require little or no additional
structural support from the building. Furthermore, because the
vegetation is adapted to the extreme roof top environment,
simple intensive green roofs require little in the way of
maintenance and resource input. Simple intensive green roofs can
be designed into new buildings or "retro-fitted" onto existing
buildings. |
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Extensive Green Roof: |
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- Accessible
only for inspection and maintenance.
- Requires very low maintenance.
- Aesthetic & ecological function.
- On wood, metal and concrete roofs. |
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Extensive Green Roofs or Wildlife Roofs are becoming more
popular, as people become more aware of biodiversity issues and
options for conservation. These are designed either to replicate
the specific habitat needs of a single or small number of
species, or to create a range of habitats which can maximize the
array of species which inhabit and use the roof.
Because of their very wide range of environmental and economic
benefits (in particular their insulation and cooling properties,
ability to significantly reduce rainwater runoff from roofs, and
their value in promoting biodiversity and habitat in built-up
areas), green roofs have become important elements of
sustainable and green construction in many countries. Moreover,
because they can be highly visible, green roofs clearly signal
the intent for sustainable building and can provide a building
or development with a positive and distinctive image.
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Benefits of Green Roof Areas: |
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- Ecological and aesthetic roof concept.
- Thermal insulation and sound insulation.
- Natural filter for rainwater (slow-down effect in storm water
release).
- Additional protection of waterproofing.
- Increase in property value. |
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* Our applicators carefully
seal around penetrations, vents, skylights, dormer windows and
chimneys to ensure a leak-free roof.
**
The information on this page is a brief introduction
to the Green Roof - Living Roof System. For more information,
specs and data sheets, please visit the supplier website or
email us with your enquiry.
New Zealand Green Roof - Living Roof System suppliers: Nuralite, Equus,
Sealco, Jaydex, Allnex, Viking, Ardex, Allco,
ABEP and
Hitchins. |
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*
Please contact us in Christchurch for free
advice on waterproofing the roofs, decks, parapets, walls and basements
of your projects. |
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Phone: 022 444 4475 | E-mail:
info@h2off.co.nz |
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H2OFF Limited 2013 - 2020
All rights reserved |
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