Sustainable Building Products & Materials

Transcription

1 Sustainable Building Products & Materials

2 Edge Environment Information Briefing Paper Page 2

3 Sustainable Building Products & Materials The use of more sustainable building products and materials has become an essential component of new construction developments. A significant proportion of projects now target an environmental rating, which sets clear sustainability targets. The manufacturing and construction industry recognise the need to supply products and materials that have a low environmental impact. This briefing paper provides an overview of current sustainability trends and Australia specific building rating tools. The paper explains the various methods of demonstrating environmental performance of products and materials and provides details of well recognised certification schemes. The paper concludes with some thoughts about the value. The growing number of green building products and materials and the numerous methods of rating environmental performance has caused confusion for specifiers and purchasers. It can be difficult to thoroughly assess the sustainability credentials of products and materials, and to understand the meaning and appropriate use of different environmental claims. For example: How are products rated? What is the difference between an Environmental Product Declaration and other environmental certifications? What is an eco-label? How do different eco-labels compare? Ultimately the goal of any environmental rating mechanism is to allow specifiers and purchasers to make informed decisions about the products or materials they are choosing. This information paper provides an overview of current sustainability trends and Australia specific building rating Page 3

4 Sustainable Building Trends The uptake of Green Building continues to increase on a global scale. In a recent worldwide survey 51% of the architects, engineers, contractors, owners and consultants surveyed anticipate that more than 60% of their work will be green by 2015, up from 28% in Edge Environment conducted an industry survey 2 on Environmental Certifications for Building products, with the intent of establishing if and to what extent the building industry considers environmental certifications as a differentiator when selecting or purchasing building products. The results of the survey identified that: 74% of participants think environmental certifications are a differentiator when selecting building products; 78% of participants have intentionally procured products with environmental certifications; 96% of participants are influenced (directly & indirectly) by Green Star; and Environmental performance has an influence of 26% on average when selecting or purchasing building products. Global recognition to reduce resource consumption and lower greenhouse gas emissions continue as key drivers for sustainable building. However, social aspects of sustainable development such as improved health and wellbeing and responsible sourcing of products and materials are now recognised as being equal parts of a sustainable development. The life-cyclelife cycle approach to Materials and Resources credits in the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) v4 offers incentives for project teams to specify products from manufacturers that provide full transparency of their product's environmental performance. Specific recognition is given to Health Product Declarations (HPD) provides a standardised way of reporting the material contents of building products, and the health effects associated with these materials. Building construction in Australia has long since had a sustainable focus. Property developers support the notion that sustainable developments can offer significant social and environmental benefits whilst maintaining commercial viability. In the three years 2012 to 2015, Australian companies expect to increase their levels of green building at higher rates than from 2009 to Building Certification and Rating Tools Independent environmental certification of buildings continues to be another key driver for sustainable development. Rating tools consider the environmental impacts of a whole development and generally include themes such as; Management; Energy, Water and waste; Indoor environmental quality; Materials; Transport; Emissions and Ecology. Rating tools have historically focused on minimising consumption of resources such as energy and water and minimising the production of waste, with these impacts being reduced so significantly more importance is now being placed on products and materials to reduce the overall environmental impact of a development. The increasing trend within rating tools is therefore to give more recognition to sustainable sourcing of products and materials, as well as for assessing the life cycle of individual products and whole buildings. The most prevalent rating system used within Australia is the Green Building Council of Australia s (GBCA) Green Star system. The system contains a suite of tools which are used to rate different development types at both the design and as-built project stages. Page 4

5 The whole rating methodology is currently being redesigned into a single combined design and as-built tool for numerous development types. The new Green Star Design and As Built tool is due to be released late A number of new Green Star credits recognise the need for sustainable products and materials: Product Transparency and Sustainability Points are awarded for good environmental performance of products and materials used within the project; Responsible Sourcing of Construction Materials Points are awarded for good environmental performance of materials used to construct the project; and Materials Life Cycle Impacts Points are awarded for conducting a whole building Life Cycle Assessment (LCA). Demonstrating the environmental performance of products and materials is vitally important to ensure their contribution to green ratings is recognised. Methods for demonstrating environmental performance of products and materials There are a number of ways the environmental performance of products and materials can be demonstrated, they include: Environmental Product Declaration (EPD) An EPD is a verified document that reports environmental data of products in accordance with the international standard ISO (Type III Environmental Declarations) EPDs provide information on the environmental impact of raw material acquisition, energy use and efficiency, content of materials and chemical substances, emissions to air, soil and water and waste generation. Product and company information is also included. An EPD is a standardised reporting format for a product on Life Cycle Assessments (LCA). Products and materials with an EPD are usually acknowledged in relevant building rating tool credits. Some examples of international EPD schemes are IBU based in Germany and The International EPD System based in Sweden. They operate in compliance with the international standard ISO (2006) - and for construction products, the European standard EN Page 5

6 Environmental certification is a voluntary means of environmental regulation and development. Manufacturers and suppliers choose to verify their product or material against predefined environmental criteria. Certification can be undertaken on a varying scale, from self-certification to independent third-party verification. First-Party Environmental Certification or self-certification indicates that the manufacturer or supplier of the product or material offers assurance regarding its claimed environmental credentials. Self-certified products or materials will not meet the requirements for purchasers who are seeking a form of independent verification. ISO provides guidance for best practice environmental product self-declarations; Second-Party Environmental Certification refers to a method in which a product or materials environmental credentials are certified by an industry association relevant to the product or material. These associations are in some cases directly involved in the creation of performance standards, operation of certification schemes and verification of environmental credentials for the products or materials; and Third-Party Environmental Certification is conducted by an independent body hired by the manufacturer or supplier. Thirdparty certification ensures an independent assessment of products and material declaring that the specified requirements of the independent body are met. ISO provides third party environmental claims. Environmental certification can differ from an EDP or product LCA in that it may have focus on a specific environmental performance indicator rather than the products whole life cycle. Environmental certification is undertaken following one of two international standards: ISO Third Party - (Type I environmental labelling); or ISO Self-declared environmental claims (Type II environmental labelling). Life Cycle Assessment (LCA) is an internationally accepted method of evaluating the environmental impacts of products and materials following international standards ISO and LCA studies assist manufacturers and suppliers in examining inputs such as natural resources, materials and fuel and outputs such as waste. Conducting a lifecycle assessment allows analysis of key environmental impact categories and identifies opportunities where better environmental performance can be achieved. A product LCA can be used to produce an EPD or as evidence to demonstrate environmental preferability for type I ecolabels (ISO 14024), which intend to certify environmental preferability across all relevant environmental impact categories, Social Life Cycle Assessment (S-LCA) is an emerging aspect in the life cycle assessment domain. Social and socioeconomic LCA complement environmental LCA and Life Cycle Costing, contributing to a complete assessment of goods and services within the context of sustainable development. Tools such as the Social Hotspot Database are driving an improvement in social conditions worldwide by providing the data and tools necessary for improved visibility of social hotspots in product supply chains. Product or Material Stewardship Schemes are a method to encourage manufacturers, suppliers and purchasers to share responsibility for reduction, reuse, recycling and recovery of products and materials. It also helps manage environmental impacts arising from the disposal at the end of its life. Stewardship schemes are often seen as Page 6

7 complementary to environmental certification and EPDs as stewardship schemes focus on best practice processes rather than measurements of performance and impacts. Some examples of product stewardship schemes in the building products industry include: The Australian polyvinyl chloride (PVC) industry s Product Stewardship Program. This is a voluntary initiative by The Vinyl Council of Australia setting out a series of commitments to address environmental and health issues associated with the life cycle of PVC; The Australian Forest Stewardship Council (FSC) operates a system for different stakeholders interested in forest issues to work towards responsible forest management. In providing this system, FSC promotes environmentally appropriate, socially beneficial, and economically viable management of the world's forests; The Steel Stewardship Forum (SSF) is developing a sustainability certification scheme called Responsible Steel which will provide certification of compliance with nominated sustainability criteria for all sectors of the steel supply chain, incorporating the full life cycle of steel from mining through steel making, processing and fabrication to use, re-use and recycling; Certain manufacturers of products such as furniture and storage operate their own stewardship schemes, in which they are responsible for taking back the product at the end of its service life and either reusing or recycling it. Reused Products or Materials are generally regarded as items that have previously been used in another project. It should be demonstrated that reused items directly substitute a new items without significant changes to the structure or function of the item. ISO for Type II environmental product declarations is the most relevant ISO standard to communicate resuse, recycled content, recyclability and compostability of products. Product and material certification schemes An eco-label is generally awarded following environmental certification to either ISO or ISO An eco-label confirms a product or materials environmental performance against its chosen certification type. Most certification services have a brand or logo (eco-label) which is applied to products and materials certified under their scheme. There are almost 500 different eco-labels in use by 25 industry sectors in 197 countries around the world 4. This results in significant uncertainty about the meaning and relevance of different types of label. Some well recognised environmental certification schemes within Australia are: Carpet Institute of Australia Environmental Certification Scheme; Ecospecifier GreenTag GreenRate Certification is applicable to furniture, flooring and assemblies; Australasian Furnishing Research and Development Institute. AFRDI Standard 150, is applicable to commercial furniture; Good Environmental Choice Australia (GECA) certification is applicable to furniture, flooring, assemblies, paints and cleaning products; and Institute for Market Transformation to Sustainability (MTS) Sustainable Materials Rating Technology (SMaRT) certification. The above certification schemes are recognised the Green Star 2014 materials Page 7

8 credits, whereas most international certifications cannot be used to demonstrate leading environmental performance. Performance achievements As illustrated there are numerous ways of demonstrating a product or materials environmental performance. Each available pathway for environmental certification offers its own benefits and restrictions. The use of EPD or LCA offer an overview of the product or material s complete environmental performance, whereas some forms of environmental certification may focus on a specific environmental performance indicator. Environmental rating tools generally award credit to products and materials demonstrating one of the following forms of environmental attributes or performance: Reused products, products with recycled content, products that are recyclable, etc. This category of environmental attributes should not be considered a proxy for environmental preferability, but rather one management approach to reduce waste and improve resource efficiency; Environmental Product Declarations (EPD). One of the main purposes of EPDs is to provide comprehensive and comparable information based on LCA. The EPD certification is not evidence for environmental preferability per se.; Third-Party Certification. The Type I eco-label is one of the most widespread third party certifications. ISO compliant ecolabels intend to signal that the product is environmentally preferable according to the rules and within the class of comparable products, according to the ecolabel programs standards; and Stewardship Programs focus on best practice processes rather than measurements of performance and impacts. Product stewardship is an approach to managing the impacts of different products and materials. It acknowledges that those involved in producing, selling, using and disposing of products have a shared responsibility to ensure that those products or materials are managed in a way that reduces their impact, throughout their lifecycle. Conclusion Sustainable development represents a significant portion of the construction industry, impacting a wide range of building sectors. Environmental rating tools are placing an increased importance on the use of sustainable building products and materials and the use of these products and materials is only expected to increase with the impact of building products and materials representing a larger percentage of a buildings overall impact. This market driven requirement provides an important incentive for manufacturers to provide buildings products and materials with environmentally recognised credentials. For more information on Edge Environments involvement with sustainable building products and materials, please contact Clint Craggs (clint@edgeenvironemnt.com.au or ). Page 8

9 References 1 World Green Building Trends, Smart Market Report, McGraw Hill Construction, 2013, p5. 2 Results of the Environmental Certifications for Building Products Survey, Edge Environment, July World Green Building Trends, Smart Market Report, McGraw Hill Construction, 2013, p Disclaimer The research and findings in this paper are based on best available data and information at the time of writing. This publication contains general information only and Edge Environment Pty Ltd is not, by means of this publication, rendering accounting, business, financial, investment, legal, tax, or other professional advice or services. Before making any decision or taking any action that may affect your business, you should consult a qualified professional advisor. About Edge Environment Edge Environment, identifies, analyzes, and explains the major sustainability issues driving today s business dynamics and shaping tomorrow s marketplace. From provocative points of view about strategy and organizational change to straight talk about science, economics, regulation and technology, Edge Environment delivers innovative, practical insights companies can use to improve their bottom-line performance. Page 9

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