GREEN BUILDINGS RATING SYSTEMS   2من   اصل4

Types of Rating Systems:
Designing sustainable buildings calls for a detailed understanding of local
cultures and environments, quality standards, environmental regulations,
safety standards and building codes.  
There are many sustainability rating systems and certifications in the world
today. The most common systems will be listed below:
LEED – Leadership in Energy and Environmental Design
It is one of the most popular rating systems and green building certification
programs around the world. LEED was developed by nonprofit
organization Il.S. Green Building Council   ( USGBC). It is a voluntary,
consensus-based standard to support and certify successful green building
design, construction and operations. It guides architects, engineers , building
owners, designers and real estate professionals to transform the
construction environment into a sustainable one. Green building practices
can considerably reduce or eliminate negative environmental impacts and
improve existing unsustainable design.
As an added benefit, green design measures reduce operating costs,
enhance building marketability, increase staff productivity and reduce the
self-proclaimed world’s leading sustainability assessment method for master
planning projects, infrastructure and buildings.
To rate and certify projects, BREEAM uses a scale of pass, good, very
good, excellent and outstanding depending on the percentage of the score
achieved:
Unclassified: < 30% Pass: 30% Good: 45% Very Good: 55% Excellent: 75% Outstanding: 85% The categories included in BREEAM are as management, health and well- being energy, transport, water, materials, waste, land use and ecology and pollution and innovation. CASBEE - Comprehensive Assessment System for Built Environment Efficiency It is a method for evaluating and rating the environmental performance of buildings and the built environment. CASBEE was developed by a research committee established in 2001 through the collaboration of academia, industry and national and local governments which established the Japan Sustainable Building Consortium (JSBC) under the auspice of the Ministry of Land,