Introduction
A green building (also referred to as sustainable building or green construction) is a structure that employs an approach that is responsible for the environment besides being efficient in regard to resources all through its life cycle: This is from selecting the site to designing it, constructing, operating, maintaining, renovating and demolishing it. To achieve this, the client, the engineers, the architects and the entire design team closely cooperate at all stages of a project (Yan and Paliniotis, 2006). Practicing Green Building complements and expands the conventional building design areas of comfort, durability, utility and economy.
Green Architecture
Green architecture is an approach to building which has become more popular in the last 25 to 30 years. Also known as sustainable design, green architecture is a method of design that minimizes the impact of building on the environment. Once thought of as unconventional and nonstandard, both regulatory agencies and the public alike are quickly accepting green architecture as a socially responsible and logical means of construction.
The beginnings of today's green revolution can be traced back to the environmental awareness of the 1960s and European design.
As the environmental problems become more and more serious these years, especially that intense negative impact that buildings in modern cities bring to the cities, the concept of Green Building is being more and more important considered by local and federal government. According to the U.S. Green Building Council (USGBC), a green building is one that utilizes design and construction practices that significantly reduce or eliminate the negative impact of buildings on the environment and the building's occupants. Besides the more and more advanced building structure and technology, the main goal of green building is to protect the health of the occupants, save energy and reduce pollution to environment. There are many certifications of green buildings to judge whether the building meets the standard of green buildings and what environmental performance level is this building at, to help government regulators, building professionals and consumers to see better how this building can be improved and what is its impact on human beings and environment. Such green building programs include Leadership in Energy and Environmental Design (LEED), Environmental Protection Agency's Energy Star program, National Association of Home Builders (NAHB Green), etc. Among them, LEED is one of the most popular certification programs that give the building credits for its environmental performance. In this essay, I will discuss the costs and benefits of different types of building projects that were certified by LEED.
Sustainable Design
Sustainable design seeks to reduce negative impacts on the environment, the health and comfort of building occupants, thereby improving building performance. The basic objects of sustainability are to reduce consumption of non-renewable resources, minimal waste, and create healthy, productive environments (“Sustainable Design”). Focusing primarily on the sustainable design principles, there are five, including: low-impact materials, energy efficiency, quality and durability, design for reuse and recycling, and renewability. As sustainability appears to become the necessary trend in architecture, the question concerning the cost versus outcome of “going green” really an investment or a waste of time and money comes to mind. With our research provided below, we believe the expenses may truly be with the investment in the end.
INTRODUCTION
The present world with its sustainable resources, environment and way of life became developed. The population growth, consuming almost all the available resources, to meet people’s needs, should be a major concern. The consumption of material and energy around the world which is about to eliminate the available supply, has increased over the last two decades, especially in the built environment. In order to access other reserves of fuel, the more energy will be needed to use.
“We are consuming the Earth’s natural resources beyond its sustainable capacity of renewal” said by Herman Daly, Beyond Growth, Boston 1996, 61[1] .
Pijawka, K. David, and Kim Shetter. "Sustainable Design." The Environment Comes Home: Arizona Public Service Environmental Showcase Home. Tempe: Herberger Center for Design Excellence, 1995.
Green building has come forth over the past decade as a positive movement to produce high-performance, energy-efficient structures that improve comfort and health for resident, meanwhile, minimizing environmental impacts. Nevertheless, a common sense that green features is expensive and not suitable for affordable housing. Recent studies are showed that green buildings have a modest initial cost premium, but the long-term benefits far exceed the additional capital costs. For this report, I will introduce a financial analysis -Net Present Value (NPV), and discuss the impacts of NPV analysis for green affordable housing.
In developing this contemporary and iconic building, the design focuses on practical attributes and optimises energy efficiency. The design strategy encapsulates four key aspects:
Constructing ‘green cities’ using the appropriate off-the-grid techniques would be a solution between human-environmental interactions. Off-the-grid methods uses little or without reliance on services but instead, uses schemes and technologies of alternative energy systems that uses renewable energy such as solar panels and wind turbines. Off-the-grid constructions tend to be costly mainly due to its upfront cost, nevertheless, in most cases, it would be cost-effective in spite of the minor maintenance cost and would also be a solution to some of the ecological concerns. Through understanding the environment, architects could ideally use the concept of eco-cities to minimise the carbon emissions and also consider self-sufficiency to resolve the issues between the production and the zero-emissions requirement.
Syumi Rafida Abdul Rahman. (2012). Green roofs as urban antidote: A review on aesthetic, environmental, economic and social benefits. Department of Landscape Architecture. UTM.