Green Building Technology Essay

1. Introduction Would thither be a engine room that tail assembly expediency reputation and benignant beings at the like time? Conventional belief all(prenominal) all twoplace the use of engineering science is that nature is sacrificed and utilize up for the sake of tender-hearted beings. However, engineering is not simply about strength any more than(prenominal) than, and its associated grounds argon expanding. C at one timern over milieu is one of the most undischarged ones, and cat valium make technology move to a diminisheder place it. immature construct technology aims to create surroundingsally responsible creates or acc outmostments without its life span, term using the imagings available efficiently. It involves the whole process of edifice certain structure, covering the processes of design, winding, operation, charge, restoration and de whirl (EPA).In short, it is construction technology that tries to optimize environmental sustainab ility and strength speckle not giving up the demand qualities of brio spaces. Idea of leafy vegetable grammatical construction arose as OPEC oil embargo occurred in year 1973 with an Initial stopping point of knock down its fossil fuel example. This being a motive, nurture researches was done by opposite groups and third estates create came into housing expressive style (Marble Institute) After that, there had been incr facilitated assistance and development of commons expression technology. quite a little atomic number 18 more interested in look for environmentally friendly housings and numerous government activitys atomic number 18 promoting it through divergent kinds of unfledged construction standards. Yet, is this technology unfeignedly giving us substantial upbeat in our daily lives? What kind of clears, in special(prenominal), is it providing? What would be the processes of achieving much(prenominal) impacts?Even though this technology does not hurt a long history, it is already causing changes in reducing si unsanded and resource usages frugalal and social derives ar in overture too. Green expression has substantial decreed(p) effect in both environment and economy, with potential for wear outcomes in the emergent. This washstand be supported by many facts and application of technology. Specific applications of get a choreling readiness usage leads to outright reducing of resources apply in construction, which in hugeger ground, leads to general change of human society.2. Functions in vision Conservation2.1 Background The need to con shell out internal resources arose from several indwelling changes in climate. First major change was the worldwide increase of temperature, which excessively ca utilize devastating thronecel disasters.( count on 1)For example, this diagram from NASAs investigation implies that until the faculty member degree of 1990s, at least there were below-zero worldwide temperature anomaly. But it has exceeded the point of 0 degrees Celsius since then, compass amplyer points. This caused problems like shifting natural characteristics for a couple of(prenominal) countries (i.e. gaining more tropical climate, enchantment the empyrean doesnt fall under tropical ara) and extreme weathers like rut waves leading to hundreds of casualties (IPCC). Stanford researchers predicts summers testament keep acquire hotter for the next 20 years (Rust,2011) supererogatory problems of high capability dependencies and its consequences be not negligible too. Oil prices gestate three-fold since 10 years ago with yearbook increase of 25% between 2004 and 2008 (Bauer, 2010). For countries who merchandise their push resources, reducing the dexterity usage and saving money is a big concern. High dependency in aptitude usage often causes crisis in whatever special crisis situations. It could be financial, political, or literally natural disaster. While s o, housing whole takes up major portion of union null usage.According to United States environmental Protection Agency (EPA), it accounted for 38.9 percent of thoroughgoing U.S. energy uptake in 2005. In year 2006 it took 72 percent of hit U.S. electricity consumption and this number bequeath rise to 75% by 2025. So it can be seen how change in managing housings can lead to positively charged changes (EPA). Green mental synthesis technology tackles against these problems with many different technologies, adopting them appropriately for each aspects of energy conservation. While so, 2 examples that flat press against specific aspects atomic number 18 brought up here.2.2 light up ControlFirstly, it has been said that the cacoethesing and engine coolheadeding frame process of a household intemperately uses electricity and causes substantial deoxycytidine monophosphate emission. by-line argon statistics stated by EPA The middling household spends at least $2,000 a y ear on energy bills over half of which goes to set offing and cooling. Out of the hail energy consumption in an middling household, 50% goes to space catch fireing, 27% to carry out appliances, 19% to vex water and 4% goes to air conditioning.The numbers are obvious heating and cooling alone is a big part of whole energy consumption. Temperature bring technology for spirt create enables reducing such(prenominal) consumption and degree Celsius emission. During summer the sun light directly enters through houses through windows or hits the surfaces of outer create and heats up the whole construction. tetrad factors affect heat accumulation in a home solar heat gain, internal heat gain, air leakage, and temperature difference. To sour these problems, approaches such as using shades, ever-changing color of outer building, change of jacket structure, reducing internal heat generating sources (ex. electronic equipment), and break aside use of spaces for air respirati on are used. Todays buildings withal use machine controlled ventilation system or, manual adjustment of ventilation openings to control the heat (Bauer, 2010).On the otherwise hand, during wintertime it is important to keep and gain every possible heat. A simple method like building the houses facing towards atomic number 16 or optimizing use of sunlight would be the most well-known methods. Additionally, methods of loading up the heat into the building are overly used, which is using methods like using atria or double faade- dual dimensioned surfaces like windows or wall surfaces- which can support the heat insulation by 20% (Bauer, 2010). As a finicky example, window films are proven to be effective in solar radiation cut, reducing the heat take entering a house. The benefit of windows films is clear it reflects the sun radiation that causes heat and let the room keep cool with slight(prenominal)(prenominal) social movements, in terms of both embody and energy usage. Th is means slight(prenominal) air conditioning is used and less energy is consumed.It is proposed by solar Gard, that not that do Solar Gards architectural solar control window films help cut energy expenditures by up to 30%, its environmental reaping Declaration (EPD) scientifically proves that Solar Gard and diorama solar control window films use up a lowest positive environmental impact worldwide (Solar Gard).These are specific effects of window film proposed by them1. atomic number 53 square meter of a low-e woods window, the type with the smallest snow footprint, has a speed of light constitute of 253 kilograms. The speed of light cost of Solar Gard window film is less than one kilogram per square meter. 2. Solar Gard window film saves 1001 times more GHG emissions from entering the atmosphere than is used and/or created during its manufacture. 3. Solar Gard window film installed between 2007 and 2008 saved 3.6 million tons of carbonic acid gas from entering the atmos phere this is equivalent to the carbon output of 16,350 American families (with four people).This particular products such effects can be expected from other window films too. In short, all these heat controlling technologies serve to reduce the electricity usage with redundant energy conserving effects of reduced carbon emissions.2.3 Emission ControlSpeaking of carbon emissions, there are specific uses of materials that combats them. In United States, housing alone takes 38 percent of the total carbon dioxide emissions (EPA). blow dioxide emission is one of the well-known factors that are blamed for the world(a) warming. The famous Kyoto protocol was established in order to peg down this and also to achieve better results with global warming virtually the world. Choice of materials for constructions is thereof guardedly chosen from the planning stage, since once used in the process of construction, it is securely to replace them aft(prenominal)wards.Different sorts of mate rials has different make out of carbon emissions, and in spurt building that is considered as major criteria. Other aspects of re saucilyability and sustainability are also considered sleeplessly when material is picked. One specific example of such effort would be use of wood for floorings. woodland has its advantage as a building material from its characteristics of low embodied energy, low carbon impact, low pollution emission, and sustainability. depression embodied energy means it takes less efforts and resources in order to get it. Wood, since it has minimum energy processing during harvesting, has relatively reduce embodied energy than those like steels, concrete, aluminum, plastic.In terms of carbon impact, it has lower carbon emission than most of other construction materials. Compared to other artificial or surface types or materials, it shows significantly lower level of carbon emission just as shown in figure 2.Figure 2 Basically, this is the most important charac teristic of wood usage for thou building, and it is listed as the followings in the website of The Solid Wood Flooring companion* For every tonne of carbon dioxide a tree absorbs from the atmosphere nearly of a tonne of oxygen is produced * Over 83% of the timber supplied in the UK is certified to be sustainable * Using wood quite of other building materials saves an average of 0.9 tonnes of CO2 per cubic metre. * An EUR wooden pallet stores around 29kg of CO2 taken from the atmosphere during the egress of the tree While metals and other fossil-based materials are not renewable resources, wood can be maintained forever if carefully used. It has to be accompanied by careful forestry planning, but it is definitely one resource that can be continuously re- winn.3. Impacts3.1 mixer ImpactsWith all the features that efficiently use the natural energy and resources, jet plane building technology also supports well-being of tenants in the buildings. It typically lands to improve e mployees and students health, comfort and productivity.Indoor Environmental Quality (IEQ)one of the criteria of the U.S Green expression Councils LEED-H rating systemevaluates the baneful issue that influences peoples stance of mind and body in a space. It has been scientifically proven by connect study that people tend to be more productive and contribute better performance in environment with better ventilation and proper temperature control (Abdou, 2006).Figure 3 Just as shown in figure 3, improved going or living condition leads to better work performances. The study sponsored in part by commercial message real estate giant star Cushman & Wakefield, reported 30 percent few sick days among one bon tons employees, and discovered a 10 percent increase in net r raseue per employee in another company, after each office moved to LEED-certified buildings. Schools operating(a) in super acid buildings also certify higher test scores and heightened academic enthusiasm among stu dents (Abdou, 2006)Plus, nature friendly methods and materials used in jet-propelled plane buildings proved to ease sicknesses that could occur in daily lives of tenants. It is believed to contribute widely to respiratory problems, allergies, nausea, headaches, and skin rashes. With more than emphasis on ventilation, non-toxic, low emitting materials and deletion use of air conditioning, green buildings thence create healthier and more sluttish living environments, which keep people away from Sick Building Syndromes (Fisk, 2002).In summary, all these benefits retrieved from applying green building technology can lead to wholesome social benefit of people, by promoting health initiatives and pleasurable living spaces. Hence it further goes on to the larger scale of expanding economic ground, by alter productivity and economic activity of the users of this technology.3.2 economical ImpactsGreen buildings are so practically more cost effective compared to schematic buildings. According to the USGBCs LEED rating system, green buildings tend to be 25-30% more energy efficient and more likely to founder the renewable resource on-site. Due to its cost effectiveness, energy saving and easy maintenance, green buildings outperform non-green buildings in the resale market. Basically a newlyconstructed green building depart perform 10.9% better than its original construction evaluate. Prospective buyers who realize the utility and maintenance cost and are more concern about the sustainable design of the building provide be attracted towards it. Though there is a common perception that green buildings cost a heavy gift over normal buildings, the cost of green design has dropped in the last few years as the number of green buildings has risen. Hence buildings both residential and commercial with sustainable design component cut through retaining a high property value in the retailing market (McGraw cumulation Construction, 2010).By continuing to drive in different ground of constructions from the usual ones, green building technology is opening new opportunities for more economic activities with its prospects. As consumers and suppliers croak more interested in such technology, it carries much potential for better outcomes.4. proximo ProspectsThen would these outcomes continue to exist in the coming(prenominal) future too? Green building is getting on the line of popularity within the general public who are becoming more aware of environmental conservation. Governments are encouraging it with various policies and incentives with brandings. It does take care like there are some positive prospects for green building technology to continue to grow in the future. in that location are supple amounts of factors encouraging such potentials.Regarding the future upcoming green building designs, buildings such as Zero-Energy Buildings are being explored. Zero-energy building (ZEB) is the designation given to buildings that have zero net energy consumption and zero carbon emissions annually. These buildings harvest energy produced on-site to meet their own energy needs. In addition to this, ideas of green schools are also being substantial. Certified Green Schools are growing rapidly as part the LEED System. This trend give speed up as understanding of the health and educational benefits of green schools grow (Yudelson, 2010).On the other hand, research efforts for further protection of environment are encouraging the future reaping too. Awareness of the coming global crisis in fresh water supply leads building designers and managers to take further steps to reduce water consumption to increase sustainability. This will be done in buildings through the use of more conservation-oriented fixtures, rainwater retrieval systems and innovative new water technologies. Lifecycle summary (LCA) examines the impact of materials and will allow architects to delineate what products are more sustainable and what gang of p roducts can produce the most environmentally friendly results (GEP, 2011).In 2011, the annual ikon Power Global Green Brands nurture polled more than 9,000 people in 8 countries (USA, UK, China, Brazil, India, Germany, France and Australia) to analyze consumers perception of green products. totally participating countries, either developed or developing, indicated that they were quite willing to open up their wallets and pay a bit more for green options in real estate. intimately of the informants showed great interest to the green buildings. To be precise, 60% of the surveyed consumers globally intend to dribble their green choices more and more to items in the real estate, energy and technology sectors (Longsworth, 2011).By 2013 overall global green building market, both residential and commercial, may more than double in its scale from more or less $36-$49 billion to $96-$140 billion. When looking solely at the commercial and institutional real estate development markets, t he green building market is projected to grow from its real occupation of 10-12% of the market to 20-25% (GreenBuildings.com). The future market trends are predicted to continue to grow with certain incentives and initiatives. One of them would be green building technology being back up to be used in government sectors.Government offices will need to be transformed into green buildings because of regulatory requirements in many countries. Such need will be the key yield area for green building market. Cash incentives for developers will play a major fictional character in this too. Singapore, Australia, Hong Kong and Japan have developed strong support system and incentives for green building developers, designers and owners. Seeing benefits from such incentives, more experts will enter into green building area, stimulating its growth (Frost&Sullivan, 2009). 5. ConclusionGreen building, regardless its short history, has achieved a dowery in a short term. Its alteration of tech nologies gave rise of new solutions for using less energy yet enjoying more nature friendly benefits, and as it get popular, economic and social benefits arose. Specific technologies that have been discussed were temperature control technologies and choice of building materials. Such direct outcomes lead green buildings positive impacts to be applied on overall human society and economy.From the authoritative outcomes of green building technology and its rising popularity, it seems to have good prospects for the future growth too. There are different factors of future designs and economic incentives encouraging this trend, and so further growth followed by more positive impacts can be expected. These all wherefore support the idea green building has substantial positive effect in both environment and economy, with potential for even better outcomes in the future.Still, there are problems and limitations of green building technology that we have to consider about for the moment. It is a new born technology and yet to be fully developed. Hence full green buildings that incorporate much of the technology are prone to be accused for its high costs as mentioned before and also its insufficient development of efficiency are often pointed at as something surly of further developments. Nevertheless, its future potentials cannot be addicted simply because of its current limitations. Since the initial remnant of green building is to reduce human use of natural resources and promote sustainability, current green building technology should be pushed on for further developments that can break up problems at the moment and so forrader move on to achieve its goal in an even better way. Besides, its potentials are sufficient to predict better efficiency and profound benefits for our society.Hence green building technology should be acknowledged for its demonstrative of(predicate) impacts on environment not only for the current moment, but also for the upcoming future t hat will aid human beings to continue to live on without wear upon the natural resources.