Installation & Uses of Green Roofs Construction
As building owners and city planners realize the benefits of green roofs, they will be more likely to adopt this type of infrastructure. Residents of urban areas can benefit from green roofs in many ways. In terms of life cycle costs, green roofs cost the same as or less than conventional roofing and are an investment that offers multiple economic, environmental, and social benefits.
There is nothing new about green roofs. For hundreds, if not thousands, of years, they have been standard practice in many countries, primarily due to their superb insulation properties.
A green roof was viewed primarily as a vernacular practice until the mid-20th century. Germany and Switzerland, on the other hand, experienced a resurgence of interest in green roofs in 1960 in light of increasing concerns about degrading urban environments and the rapid reduction of green space.
Various new experiments were conducted on root repellents, membranes, drainage, and lightweight growing media in addition to plant suitability.
Benefit of Green Roofs
1. High water retention: It can runoff attenuation reduces sewer overflows.
2. Environmental Improvement
? Cooling & humidifying the surrounding air produces a beneficial mono-climate.
? It can soak green house gases.
? It can also soak dust & air pollution.
? It reduces the heat island effect that causes ozone production.
3. Animals & Plants Habitation
4. Building Fabric
? The life of the roof can be extended using green roof that protects the roof from mechanical damage & ultra-violet radiation.
? Extra insulation can be provided.
? It reduces the noise levels.
5. Uses of Recycled Materials
Many recycled materials used for green roof construction to reduce the landfill disposal of plastics & rubber.
Types of Green Roof
The green roof has two types there are: Intensive and Extensive.
? Construction heights of 150 mm - 1500 mm.
? Various types of trees and plants.
? A regular irrigation system is necessary.
? Maintenance must be performed regularly.
? Natural-looking gardens are often difficult to tell apart.
? Landscapes consist of both hard and soft elements.
? A good insulation property.
? The build-up height should be between 50mm and 150mm
? Larger areas can be accommodated
? Ease of installation
? Design is simple
? An ecosystem that can sustain itself
? A lack of irrigation
? Low maintenance / no maintenance required
? Gardening on natural grounds.
? Sports and recreation.
? Grow your own food.
? Roof decks are lightweight.
? Roofs are inaccessible.
? A flat roof or a sloped roof.
? Water runoff can be reduced.
? Plants that are edible
? Grasses and perennials generalist
? Small conifers and deciduous trees
? Sedum and moss
? Moss and sedum, as well as herbs
? Sedums, grasses, and herbs
? Plants such as grasses and herbs
The primary construction of a green roof is 3 layered (vegetation, drainage, & filter layer). Each layer has to maintain various functions to decrease the overall constructions height & depth.
Various types of plantation depend on the growing medium layer depth with other useful factors.
Drainages from the roof of this layer prevent mechanical damage to the root-proof layer, provide water retention during drought conditions, and keep the substrate moist and oxygenated.
As a grain's size, water retention, air volume, weight, and nutritional reserves filter into a soil, a soil with good aeration that is not prone to weeds, not prone to settlement, and has adequate moisture levels to support grain growth.
Waterproofing will not be damaged in this way by root filtering. It depends on the slope of the roof and the landscape filter over which the roof will be built to determine the membrane specifications.
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