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Construction in mostly connected labour intensive sector and have a large set of stakeholders. Each member is critical important to the construction chain, therefore everyone is needed to be alert about this. We can categorize key barriers in six headings. They are cost, time, people, technology, market and legal.
Cost is considered as a major barrier of the construction. It is a primary aspect of discussion sustainable construction (Halliday, 2008 p.60). Some barriers related to cost are
188.8.131.52 Increase construction costs
Most Construction companies have been understood that sustainable construction practices may lead to additional or higher costs These additional or higher costs related to additional labours needed to carry out activities for example recycling waste on site. There is also an argument that Searching Sustainable material could lead to higher costs. These cost are linked with the time spent on searching and other expenses related to making telephone calls, transport, use of computer fee, fax and etc. All of these costs would increase the construction and hence, decrease the profit. As a result most of the construction companies are not likely to be willing to spend money in sustainable construction and they are forced to step back from implementing construction.
184.108.40.206Reduce profit margin
High profit seeking companies did not put sustainable construction in top on agenda. As a business most construction companies have given priorities to set to secure profit margin as high as possible. From the contractor's side it has been argued (Cameron, R., 2003) that low profit level of construction works forced them to neglecting investment in innovations, research and training developments.
220.127.116.11 Emphasis on lowest price
A research carried out by Davey (2001) has pointed out the phenomenon in the construction industry whereby contracts are preferably awarded to the companies who could offer the lowest price. In order to successfully win the contract contractors forced to submit lower bid, by reducing cost. Normally they have to concentrate on long term value rather than short term cost but contractors intention is to get the profit so they will submit the bid by reducing the construction costs rather than increasing the value. This was clearly explained by Cameron, R. (2003) that who believes that competition for lowest price has caused a culture of lowest cost tendering and fighting between the various parties who are trying to minimise cost rather than increase value.
Time is a crucial factor affects the cost or budget estimated for the job. As time is money, so construction works are often under tight time constraint and always managed to work with full capacity. The barriers related to 'time', are as follows.
18.104.22.168 Slow progress towards change
David Bartholomew Associates (2002) illustrates changes in construction would take more years to of sustained effort. The reason behind this observation is the industry is a large and complex market and involves small divisions. As improvement of new initiatives become too much effort and too difficult compared to existing processes that are difficult compared to existing processes that are well known .Diacon, D. (2006) have addressed the improper supply of information on sustainable materials, which make difficulty in getting access to these materials and making them readily available within the time constraint of a construction project.
2.3.2. 2Time-consuming process
Due to the recession construction is very badly affected. Internationally the responses from the companies are to reduce the exposure to the crisis by downsizing workforce. Directors often find it difficult to commit time to attend workshops, seminars and other trainings involve with construction development initiatives. Similarly, due to limited number of staff, companies could not afford to undertake time-consuming activities or attend trainings. According to Davey et al. (2001), unless there are opportunities to establish good business contacts, it is very unlikely that the directors are prepared to commit time to workshops or seminars for construction developments and initiatives.
22.214.171.124 Speed and short-term performance
Most construction companies are strongly concerned about short time maximisation and improving goals. (Welford, R., 2000: Chapter 2). Contractors think about short-term performances as a mean to create attention and attraction with suppliers and customers make more business with them. Priority was always given to cut down the cost and time of construction. Speed and short-term performance in construction has been seen as a significant barrier in introducing new innovations and technologies. Due to this nature and short term relationship transfer of innovations became more difficult. (Sexton, M.G. and Barrett, P.S., 2003a; CPN, 1997).
Construction deals with large variety of people with skilled and unskilled. The skilled people are the ones who implement innovation such as sustainable construction. The following barriers are related to people.
126.96.36.199 Unlikely to change
To be effective in the market and successfully overcome in the future Profession must adopt to offer innovative value added services. The Profession must rethink of the traditional practices to involve advanced changes that are better designed for new changes instead of keeping old practices and protesting against new one. New ideas about new legislations and technologies introduce possibility for companies to adapt to the changing environment and the new enforced legislation. The revised Building Regulation Part L has recently required higher standards and requirements for energy efficiency and emission of Carbon Dioxide (CO2).This must be demonstrated by contractors in both design and construction phase of a project.
Lack interest and demand from clients and architects
Clients and architects are main factor of the construction demand. These facts are effect with the construction. However reduce the strength and power of the construction. Consider the example,
Every unique material is specific with the designer's solution for the particular client request. Anyhow designer is try to use reclaimed or recycled materials some problems are transpire, because they are unfamiliar and not enough fully knowledge of them. In real world they haven't enough time to walk around on new materials and different sources.
Lack marketing and information for sustainable materials
Mainly two things are mandatory used in construction.
Because they help to trim down the environmental impact and show the way to circular use of resources.
Any how these are very significant to the marketing. Because marketing point of view have to mull over availability, reusability and quality
Is particular time, pernickety materials are easily reached the suitable palace at correct time without expected cost; availability and reusability are interconnected with them. Because reusability materials are easily access to the right place availability become a high position. If both are successful, product quality also in a good position.
Market dominance by large suppliers
Sustainable construction is mainly fall down on the supply section also. If contractors get materials on correct time business become a good position. If supplies go off in wrong position is difficult to run on the business. Because effect with the materials wastage. Anyhow supplier sections are always larger than contractors. Mostly All suppliers are like to link with the biggest contractors. But suppliers have different level of contractors, so these small contractors are very difficult to get their suitable supplier for them.