Traditional roofing is made to shed water as soon as possible from the Roof Garden. 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 about building a green roof?
What is ecological roofing? An environmentally friendly roof (GR) supplies a base along with a structure by which various plant life may grow. Recent GR progress continues to be created in Germany. About 10% in the buildings in Germany are actually green. The covering is made up in layers, each layer fulfilling another function. The base layer sits along with the substrate and offers a waterproof seal for the building. This may come as metal tray roofing or a synthetic membrane. A drainage layer is included in allow water to evacuate the roof, accompanied 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 will be the growing medium wherein 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 known as Eco roofing) can be used to promote the growth of mosses, herbs and grasses. The growing medium is comparatively shallow having a depth which is between 60-200mm. The load of the plant medium is 60-150kg per square metre. Eco roofing is utilized where there is very little or no human foot traffic and low maintenance roofing is needed. This kind of roofing is definitely the cheapest to put in.
Intensive green roofing – Roof gardens and park gardens are constructed using Intensive green roofing. This group of roofing offers 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 body weight per square metre up to 180-500kg and needs a significant structure to aid it.
Bio diverse green roofing – Bio diverse roofing was created to be left alone to reproduce an all natural ecosystem. Soil levels on the surface are varied to produce a variety of different habitats for many different species. Local plants are grown and wind swept seeds are allowed to take root. Bio diverse roofing is frequently aimed at providing a specific habitat for a threatened species.
The benefits for that building – Green roofing can turn an unattractive urban roof into an attractive 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 UV rays break down the surface of the roofing causing leaks and the necessity for early replacement. The growing medium of just living roofs supplies a protective layer preventing damage through the sun. This can double the amount life-span from the roofing and recoup the initial extra expense of installation. Further, green roofing offers a thermal layer keeping the building cooler in summer and warmer in winter. Planners within local government have finally realized some great benefits of ecological roofing. Many district councils offer financial incentives to developers using green roofing on new buildings. This trend will continue as the need to reduce carbon emissions increases.
The advantages for the environment – Urban roofs constructed with traditional roofing materials absorb the suns rays and emit them as heat. It has led to the urban heat island effect. This effect is most noticeable during the night with urban areas being warmer than surrounding areas. Air temperature in London is all about 6 degrees higher at night due to the urban heat island effect. Green zjghhj will not absorb the heat radiation so the effect is mitigated. Thus, the requirement for air conditioner could be reduced in hotter climates.
Mass urbanisation contributes to high water run off and flooding. Huge parts of concrete and tarmac stop the natural drainage of heavy rainfall. Green roofing absorbs between 50-75% of rainfall, gradually releasing it 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 approximately 239 grams of carbon per square metre. It possesses a valuable habitat for plants and insects along with providing food for bee’s and seed eating birds. Ultimately ecological roofing replaces the green footprint removed from the building.
Modern roofing materials offer a lighter, much easier to maintain option for eco roofing. Lightweight mats and module trays allow localized maintenance without the need to consider the Modular Green Roof Trays. Thinking about the huge financial and environmental advantages of living roofs, the future for green roofing looks rosy.