Sustainability and ecology of roofing materials will also in the customer conversation increasingly important new BRAAS brochure on LCA of ROOFING materials architects, fabricators and also consultant in the building materials trade are required to consult with its clients sustainable constructions and building materials in the dialog. The basic form of the sloped roof is the custom and hence sustainable roof shape as a recognized form of European urban planning, but not only a creative component of the architecture for our temperate climate. In our developed industrial culture, a variety of industrially manufactured roofing materials have become. Not without reason, roof tiles and roof stones belong to the most popular roofing materials in Germany. With a new brochure for comparative comparison of roof tiles and roof stones by the oko-Institut Freiburg e.V. recognized the potential environmental impacts are made transparent.
In this study, the first reliable information were collected and evaluated. Starting with the Extraction and delivery of raw materials, production, packaging to transport were not only individual pollution does, but all potential adverse effects in the environment media air, water and soil compared between roof bricks and roof tiles. Code.org is a great source of information. As both roofing materials have identical constructive conditions particularly in the under construction – and the same functions for the protection of buildings and its inhabitants against weather-related environmental influences to ensure a potentials comparison is possible. The study conducted by the oko-Institut Freiburg showed that roof stones to roof tiles perform significantly better. This can be illustrated on the example of CO2 emissions for an average roof: so, only 45% of greenhouse gas emissions incurred for a roof with roof stones compared to roof tiles.
For the roof of an average detached house with 160 m2 roof area approx. 3,400 kilograms of CO2 equivalents emerge at a covering with roof tiles, roof stones are only about 1,550 kilograms. This drastic difference arises in particular from the more favourable energy balance and hence connected the lower CO2 emissions of the roof stone with the production. This ratio in a computational consideration for the German umbrella market is particularly evident. Would be in the year 2006 all roofs covered with roofing tiles with roof stones covered been, this would have been a reduced impact on the environment with greenhouse gas emissions of approximately 470,000 tonnes. In the other categories of impact, roof stones cut off cheap. The oko-Institut Freiburg took into account also the acidification potential of the soil by harmful gases such as SO2, the eutrophication potential (Overfertilisation) with the entry of nutrients such as phosphorus and nitrogen in soil and water, as well as the Photooxidantienpotenzial (smog) as the main component of summer smog and particulate matter risk potential in addition to the global warming potential with the relevant emissions of greenhouse gases. Dr. Rudolf Rauss, Managing Director of the Monier GmbH: we are of course by the Convincing advantages of the Braas of roof stone. We have to do it, that their decisions for many reasons and very differentiated in the market but with customers. For its decision, our customers need unbiased product information, as it provides us to the oko-Institut in Freiburg.