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LEED, or Leadership in Energy and Environmental Design, is an internationally

recognized certification system for green buildings, developed by the

US Green Building Council (USGBC) in 2000.

LEED certification provides independent, third-party verification that a

building, home or community was designed and built using strategies aimed at

achieving high performance in key areas of human and environmental health:

sustainable site development, water savings, energy efficiency,

materials selection and indoor environmental quality. LEED certification is the

internationally recognized distinction that a building or neighborhood

development is environmentally responsible, profitable and a healthy place tolive and work.

With nearly 9 billion square feet of building space participating in the suite of

rating systems and 1.6 million feet certifying per day around the world,

LEED is transforming the way built environments are designed, constructed,

and operated - from individual buildings and homes, to entire

neighborhoods and communities. Comprehensive and flexible, LEED works

throughout a building's life cycle.


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BREEAM (BRE Environmental Assessment Method) is an

environmental assessment method for buildings around the world.

BREEAM provides clients, developers, designers and others withmarket recognition for low environmental impact buildingsassurance that best environmental practice is incorporated into abuilding

inspiration to find innovative solutions that minimise theenvironmental impacta benchmark that is higher than regulationa tool to help reduce running costs, improve working and livingenvironmentsa standard that demonstrates progress towards corporate and

organisational environmental objectives


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CASBEE (Comprehensive Assessment System for Built EnvironmentEfficiency) is a Japanese assessment and certification tool for buildings thatcovers:Energy efficiencyResource efficiencyLocal environmentIndoor environment.Four CASBEE assessment tools serving at each stage of the design processCASBEE for Pre-design;CASBEE for New Construction;

CASBEE for Existing Building; andCASBEE for Renovation.Each tool is intended for a separate purpose and target user, and is designedto accommodate a wide range of uses (offices, schools, apartments, etc.) inthe evaluated buildings.There is also a CASBEE accredited ProfessionalRegistration System for specialized engineers with expertise and knowledgein the comprehensive environmental performance evaluation of buildings who

attend a special training course and take an exam to become accredited


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The DGNB Certification System was developed by the

German Sustainable Building Council (DGNB) together with

the Federal Ministry of Transport, Building, and Urban Affairs

(BMVBS) to be used as a tool for the planning and evaluation

of buildings in a comprehensive quality perspective. It is

designed as a rating system and covers all relevant topics of

sustainable construction.

Awards within this certification scheme are given in categories

of bronze, silver, and gold.

Six impact areas and fields are considered during evaluation:

ecology, economy, social-cultural and functional topics,techniques, processes, and location.


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The HQE label aim to improve environmental quality of newand existing buildings. Certification of building owners thatproves higher environmental quality of buildings they comission.

It applies to various kinds of buildings - individual and multistory,residential and commercial.The Leadership in Energy and Environmental Design (LEED)Green Building Rating System encourages and acceleratesglobal adoption of sustainable green building and developmentpractices through the creation and implementation of universally

understood and accepted tools and performance criteria


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PassivHausis a certification for super-energy efficientbuildings meeting the code developed by the PassivHaus

Institute in Germany, and administered in Canada, Germany,UK and US.A Passive House is a very well-insulated, virtually air-tightbuilding that is primarily heated by passive solar gain and byinternal gains from people, electrical equipment, etc. Energylosses are minimized. Any remaining heat demand is provided

by an extremely small source. Avoidance of heat gain throughshading and window orientation also helps to limit any coolingload, which is similarly minimized. An energy recoveryventilator provides a constant, balanced fresh air supply. Theresult is an impressive system that not only saves up to 90% ofspace heating costs, but also provides a uniquely terrific indoor

air quality.


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