With the beginning of a new year comes the desire from government and organizational leaders to implement the regulations
and ideas that were devised the previous year. The year 2010 saw new ideas and legislation pertaining to climate change,
green building and efficiency standards—all issues that will have an effect on the construction industry.
GREEN BUILDING STANDARDS UPDATES
The LEED program, the green building standards developed by the US Green Building Council (USGBC), is in the midst of a
public comment period in response to proposed changes to the ground-breaking rating and benchmarking system. The
USGBC continually seeks to update the standards to maintain their relevancy, reflecting changes in the market and the green
technology available for use. “LEED will not change overnight; we are embarking on a process of stakeholder engagement
and careful development of a consensus-based, technically improved, and innovative rating system that continues to push the
market toward optimal building design, construction, and operations practices,” said a statement issued by the USGBC in
November.
The proposed changes reflect improvements to technology and materials used in the green building sector. Certification areas
affected by the proposed changes include Building Design and Construction, such as new construction, schools, retail and
warehouses; Interior Design and Construction, Building Operations and Maintenance for existing buildings and Home and
Neighborhood Development. There will be a second public comment period this summer.
Similarly, the Green Building Council of Australia (GBCA) is currently developing a new rating tool to serve as a benchmark for
the operational performance of existing buildings. "Green Star will soon address the 95 per cent of the market that isn't brand
new, with Green Star - Performance being developed to assess the full range of existing buildings in the market, regardless of
building type," said the GBCA's Green Star Director, Andrew Aitken in a statement in December.
The GBCA uses the Green Star rating system to assess the performance of green buildings in nine impact categories
including management, transport, indoor environment quality, land use and ecology, emissions, materials and innovation and
water and energy assessment from NABERS—the National Australian Built Environment Rating System. The new rating tool
will fill the gaps in the rating systems offered by the GBCA and NABERS. "We will continue to work closely with NABERS to
ensure there is no duplication of measurements or benchmarks where widely-accepted market practices exist, such as
NABERS Energy and NABERS Water in the commercial office market," said Aitken.
HVAC EFFICIENCY
In 2009, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), the Illuminating
Engineering Society of North America and the USGBC published Standard 189.1-2009, Standard for the Design of
High-Performance Green Buildings except Low-Rise Residential Buildings, which created a foundation for how to design,
build and operate sustainable and efficient green buildings.
Standard 189.1 is a comprehensive standard that focuses on the sustainability of the entire building—from energy and water
efficiency to indoor environmental quality and site sustainability. The standard, which is America’s first code-intended
commercial green building standard, creates minimum requirements for the design and construction of high performance
commercial green buildings. "Greening the building code is fundamental to the U.S. Green Building Council's goal of market
transformation and is also a critical factor in how the building industry is working to mitigate climate change," said Brendan
Owens, VP, Technical Development, U.S. Green Building Council in a statement about the Standard in January 2010. "We're
extremely excited to see our collective efforts over the past three years come to fruition in the form of this important standard."
Recently, United States Army adopted the standard as part of its new sustainability and design policy. “We are committed to
sustainable design and development but our commitment extends far beyond construction and renovation savings,” said
Katherine Hammack, assistant secretary of the Army for Installations, Energy and the Environment, in a statement in October
2010. “We are on a path to integrating energy and sustainability considerations into our fundamental way of thinking as we
progress toward net-zero energy, water and waste in buildings and installations.”
ASHRAE has published a User’s Manual for Standard 189.1, which is available for purchase from its bookstore. According to
Kent Peterson, former chair of the Standard 189.1 Committee, “The User’s Manual aids architects and engineers in applying
the standard to design; general and specialty contractors in constructing buildings that are in compliance; and plan examiners
and field inspectors in enforcing the standard where adopted into code.”
CLIMATE CHANGE & ENERGY EFFICIENCY STANDARDS
On the heels of revised green building and efficiency standards from industry organizations comes the push from government
bodies to enact climate change legislation. While climate change action seems to be stalled on a federal level in the United
States, the United Kingdom has been taking a more proactive role, calling for an 80 percent reduction in carbon emissions to
pre-1990 levels by 2050.
A report published in December by the Innovation and Growth Team (IGT) heralded the call for the construction industry to
play a principal role in helping the UK meet these rigorous standards through green building. The embrace of more green
building projects will also set the construction industry back on track to flourish after a rough past few years.
Industry associations support the report, including the Royal Institute of British Architects (RIBA), which issued this statement
in December, “The Institute strongly endorses the emphasis on the need for a dramatic transformation in the construction
industry to address the low carbon agenda. The focus on existing buildings and major infrastructure is right…The transition to
low carbon is as much a business opportunity as a crucial response to the urgency and importance of climate change and
could alter the face of the UK construction industry for the better.”
(转自ConstructionDigital.com)