Traditional roofing is made to shed water as quickly as possible from the Green Roof Modules. Conversely, green roofing actually holds water on the roof. It may also make maintenance harder and can cost up to 50% more to install. So why would you consider building a green roof?
Precisely what is ecological roofing? An eco friendly roof (GR) offers a base on top of a structure where various plant life may grow. Recent GR progress has become developed in Germany. About 10% of the buildings in Germany are actually green. The covering is built up in layers, each layer fulfilling another function. The base layer sits on top of the substrate and provides a waterproof seal for the building. This might come in the form of metal tray roofing or even a synthetic membrane. A drainage layer is added to allow water to evacuate the roofing, followed by a filter and root protection layer. The basis protection membrane prevents plant growth from puncturing the waterproof membrane and causing leaks. The last layer is definitely the growing medium in which the plant growth is bedded. Green or “living roofs” could be separated into three main categories. Extensive, Intensive and Bio diverse.
Extensive green roofs – Extensive GR, (also called Eco roofing) can be used to advertise the growth of mosses, herbs and grasses. The growing medium is fairly shallow using a depth which is between 60-200mm. The weight in the plant medium is 60-150kg per square metre. Eco roofing is used where there is little or no human foot traffic and low maintenance roofing is necessary. This kind of roofing will be the cheapest to set up.
Intensive green roofing – Roof gardens and park gardens are constructed using Intensive green roofing. This group of roofing supplies the widest selection of planting opportunities. Shrubs, flowers and also trees could be utilised. The depth from the growing medium is between 150-400mm. This pushes the load per square metre approximately 180-500kg and requires an important structure to support it.
Bio diverse green roofing – Bio diverse roofing was created to be left alone to reproduce a natural ecosystem. Soil levels on the surface are varied to produce a wide range of different habitats for different species. Local plants are grown and wind swept seeds are allowed to take root. Bio diverse roofing is frequently aimed at providing a particular habitat for any threatened species.
The benefits for the building – Green roofing can change an unattractive urban roof into an great looking feature. Along with the aesthetic useful, living roofs provide numerous financial benefits. The waterproof membrane on roofs is subjected constantly to Ultra-violet light. These UV rays break down the top of the roofing causing leaks and the need for early replacement. The growing medium of just living roofs supplies a protective layer preventing damage from your sun. This can double the life span in the roofing and recoup the primary extra cost of installation. Further, green roofing supplies a thermal layer keeping the building cooler in summer and warmer during winter. Planners within local government have now realized the benefits of ecological roofing. Many district councils offer financial incentives to developers using green roofing on new buildings. This trend continue as the necessity to reduce carbon emissions increases.
The rewards for that environment – Urban roofs constructed with traditional roofing materials absorb the suns rays and emit them as heat. This has led to the urban heat island effect. This effect is most noticeable at nighttime with urban areas being warmer than surrounding areas. Air temperature in the uk is about 6 degrees higher at nighttime as a result of urban heat island effect. Green zjghhj will not absorb the heat radiation and so the effect is mitigated. Thus, the necessity for air conditioner might be reduced in hotter climates.
Mass urbanisation contributes to high water run off and flooding. Huge areas of concrete and tarmac avoid 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 your building reducing energy consumption and carbon emissions even more.
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 possesses a valuable habitat for plants and insects as well as providing food for bee’s and seed eating birds. Ultimately ecological roofing replaces the green footprint removed through the building.
Modern roofing materials offer a lighter, easier to maintain selection for eco roofing. Lightweight mats and module trays allow localized maintenance with no need to go ahead and take Green Roof System. Considering the huge financial and environmental benefits associated with living roofs, the long run for green roofing looks rosy.