Environmental Product Declaration in accordance with ISO 14025 Type III and EN 15804
At the end of the 90s, our material RHEINZINK was already declared an environmentally friendly construction product in accordance with ISO 14025 Type III (Environmental Product Declaration - EPD) according to a comprehensive evaluation of its entire life cycle by the committee of the IBU (Institute Construction and Environment e. V.). Since January 2013, we have been one of the first metal manufacturers to possess EPDs in accordance with the new standard EN 15804 (Sustainability of Construction Works – Environmental Product Declarations - Core Rules for the Product Category of Construction Products), for our product lines PATINA LINE, PROTECT LINE and INTERIEUR LINE. The EN 15804 provides fundamental product category rules (PCR) for type III environmental declarations for construction products and harmonises the calculation and assessment of life cycle assessment results at European level.
What are Environmental Product Declarations (EPDs)?
- EPDs describe a construction product transparently with all of its characteristics from the start to the factory gate (cradle to gate).
- EPDs offer planners and builders clear orientation in deciding upon an environmentally friendly and resource-saving construction material.
- EPDs are based on internationally agreed ISO standards and European standards.
- EPDs are independently checked and so provide reliable and comparable data on the environmental effect of a construction product.
- EPDs form the fundamental data for the environmental assessment of a building, e.g. for the production of a life cycle assessment in the framework of the DGNB certification system.
The EPD describes the environmental performance of construction products. It is intended to promote the development of environmentally-friendly and healthy construction. EPDs provide the fundamental data for the environmental assessment of buildings and are based on internationally agreed ISO standards. The assessment is based upon the contents of the life cycle assessment, which supplements the EPD and is produced in accordance with the internationally valid ISO 14040.
The declaration contains in explicit form: product definition and construction-physical information, information on basic materials and the origins of the material, descriptions of the product's manufacturing, instructions on product processing, information on the usable state, unusual effects and the after-use state, life cycle assessment results, documentation and tests. As an improvement of EN 15804, the results of the life cycle assessment are recorded in different modules, which reflect the life cycle stages of a construction material: manufacture, use, end of life. In a fourth module, "potentials", the advantages or pollution/disadvantages resulting from recycling are separately documented. This method creates transparency because it makes it clear at what point in the life cycle effects are to be expected from the product's use. Within the modules, a total of 24 indicators are defined in four groups: environmental impact, use of resources, wastes, and material and energy flows.
Type III declarations are issued on the basis of criteria developed with the help of independent third parties and are also reviewed by an independent advisory board. They are therefore ideal when making an objective comparison between building products in terms of their environmental impact. They provide a systematic and standardised basis for data to produce an ecological assessment of a building in the "modular construction system" using declarations for individual building products. A life cycle analysis takes into consideration the entire life of the building, the construction phase, usage including possible conversion as well as demolition and disposal, with any contribution made by the building products to energy efficiency or other aspects of sustainable building management also being included here.
A study published by the German Federal Environment Agency has confirmed that the use of zinc for roofing and facades is an ecological choice. The guidelines drawn up for architects and developers under this study recommends performing a life cycle assessment for each material to be used for construction.
Further details about EPD´s can be found on the website of Institute Construction and Environment e.V.:
BRE Global Environmental Profile and Certificate
RHEINZINK coils and sheets have been certified by BRE Global (British Research Establishment Ltd.) as environmentally-friendly construction products. As with the EPD’s evaluation, this evaluation is also based on a "cradle to grave" life cycle analysis of the material. The environmental impact is converted into "ecopoints" per tonne of material. The annual environmental impact of an inhabitant of Western Europe equals 100 ecopoints.
The overall evaluation is carried out on the basis of different construction elements, i.e. all the materials required for 1 m² roof or façade are included. Transportation, maintenance, lifetime and required processes at the end of the product’s useful life are taken into consideration to calculate the environmental impact based on a 60 year study period ("cradle to grave"). The result is presented in ecopoints pro m² and translated into easy-to-interpret ratings from A+ to E.
RHEINZINK roof coverings and standing seam façade linings have been awarded an A rating. This and other ratings for RHEINZINK roof and façade components can be found on the free-of-charge online database www.greenbooklive.com. Go to Search all GBL and simply enter RHEINZINK under Company Name.
C2C Cradle to Cradle Certificate
In March 2009 RHEINZINK was awarded certification according to the "Cradle to Cradle" criteria. Cradle to Cradle is based on the philosophy that all materials can be recycled into a new product without loss of quality including their residual materials, thus taking account of the entire life cycle from generation of the material until its reuse. Cradle to Cradle differs from recycling in that a material retains its original value and can be reused as a new item of at least equal value (upcycling) and not as an inferior product (downcycling) or even worse, as a product only fit for landfill.
This desirable technical and biological cycle avoids waste and environmental pollution. In addition, there is the requirement that a material must not release any toxic substances during usage, deconstruction and recycling into a new product. RHEINZINK is also guaranteed to impress with its unusually long service life, which averages 75 years in the case of roofing and facades. Such favourable material properties and the patina's high resistance to corrosion, formed on exposure to the atmosphere, will ensure compliance with the Cradle to Cradle criteria for many generations.
RHEINZINK's roof coverings and facade claddings have been awarded the status "Basic" by the MBDC Institute. Cradle to Cradle certification at "Basic" Level applies to all RHEINZINK roof and facade products including the complete roof drainage system. Categorisation is reviewed by MBDC on an annual basis and the product recategorised. Certification according to the Cradle to Cradle criteria confirms RHEINZINK's claim of operating an environmentally friendly business.
Other useful details about Cradle to Cradle can be found at: