Traditional roofing is designed to shed water as soon as possible from the Modular Green Roof Trays. Conversely, green roofing actually holds water on the roof. It may also make maintenance more challenging and can cost approximately 50% more to install. So why would you think of building a green roof?
Precisely what is ecological roofing
A green roof (GR) provides a base on top of a structure where various plant life may grow. Recent GR progress has been developed in Germany. About 10% in the buildings in Germany are now green. The covering is made up in layers, each layer fulfilling an alternative function. The base layer sits on top of the substrate and offers a waterproof seal to the building. This may come in the form of metal tray roofing or perhaps a synthetic membrane. A drainage layer is added to allow water to evacuate the rooftop, followed by a filter and root protection layer. The main protection membrane prevents plant growth from puncturing the waterproof membrane and causing leaks. The last layer is the growing medium wherein the plant growth is bedded. Green or “living roofs” can be divided into three main categories. Extensive, Intensive and Bio diverse.
Extensive green roofs
Extensive GR, (also called Eco roofing) is utilized to advertise the expansion of mosses, herbs and grasses. The growing medium is comparatively shallow using a depth of between 60-200mm. The load in the plant medium is 60-150kg per square metre. Eco roofing can be used where there is very little or no human foot traffic and low maintenance roofing is necessary. This sort of roofing will be the cheapest to install.
Intensive green roofing – Roof gardens and park gardens are constructed using Intensive green roofing. This class of roofing offers the widest variety of planting opportunities. Shrubs, flowers as well as trees could be utilised. The depth in the growing medium is between 150-400mm. This pushes the body weight per square metre as much as 180-500kg and needs a significant structure to back up it.
Bio diverse green roofing – Bio diverse roofing is designed to be left alone to reproduce an all natural ecosystem. Soil levels on the surface are varied to produce an array of different habitats for various species. Local plants are grown and wind swept seeds are permitted to take root. Bio diverse roofing is often targeted at providing a particular habitat to get a threatened species.
The rewards for that building – Green roofing can make an unattractive urban roof into an great looking feature. And also the aesthetic value added, living roofs provide numerous financial benefits. The waterproof membrane on roofs is subjected constantly to Ultra Violet light. These Ultra violet rays breakdown the surface of the roofing causing leaks and the requirement for early replacement. The growing medium of living roofs supplies a protective layer preventing damage from the sun. This can double the amount life-span in the roofing and recoup the primary extra cost of installation. Further, green roofing provides a thermal layer keeping the building cooler in summer and warmer in the wintertime. Planners within local government have recently realized the advantages of ecological roofing. Many district councils offer financial incentives to developers using green roofing on new buildings. This trend will continue as the necessity to reduce carbon emissions increases.
The rewards for that environment – Urban roofs designed with traditional roofing materials absorb the suns rays and emit them as heat. It has resulted in the urban heat island effect. This effect is most noticeable at nighttime with urban areas being warmer than surrounding areas. The environment temperature in the uk is all about 6 degrees higher at nighttime as a result of urban heat island effect. Green zjghhj does not absorb the heat radiation so the effect is mitigated. Thus, the need for air cooling may be reduced in hotter climates.
Mass urbanisation results in high water run off and flooding. Huge parts of concrete and tarmac prevent the natural drainage of heavy rainfall. Green roofing absorbs between 50-75% of rainfall, gradually releasing it back into the environment. This evaporation process also cools the property reducing energy consumption and carbon emissions further.
Depending on the growing medium as well as the species present, green roofing can store as much as 239 grams of carbon per square metre. It provides a valuable habitat for plants and insects in addition to providing food for bee’s and seed eating birds. In effect ecological roofing replaces the green footprint removed through the building.
Modern roofing materials offer a lighter, simpler to maintain choice for eco roofing. Lightweight mats and module trays allow localized maintenance without having to consider the Modular Green Roof Trays. Considering the huge financial and environmental benefits associated with living roofs, the future for green roofing looks rosy.