Opportunities for Practicing Sustainable Building Construction in Kurdistan Region, Iraq

Construction sector of Kurdistan region of Republic of Iraq has witnessed a huge development in construction sector last ten years. However, there are lack of awareness and legislation regarding the sustainable construction in buildings sector. The aim of the paper is to find the required mechanism to introduce sustainable practice and implement sustainable construction in the buildings construction sector at Northern Iraq. The main objectives in this study are identifying the barriers in sustainable construction at Northern Iraq and investigate the law and regulations in dealing with these barriers.


Introduction
The necessity to overcome the global warming and climatic changes, which the world facing it in 21 st century, requires the action towards sustainability are crucial subject nowadays. Growth population and expanding of urbanization will continue increasing the buildings construction. In the same context, the needs for the safe and good life of future generations are also important. To reach this goal there is vital requirement to control urban planning, design and construction. Thus, sustainability in design and construction became crucial for the storing of natural resources for next generations. United Nations World Commission on Environment and Development (UNWCED), defined Sustainability was defined as that which ´PHHWV WKH QHHGV RI WKH SUHVHQW ZLWKRXW compromising the ability of future JHQHUDWLRQV WR PHHW WKHLU RZQ QHHGVµ (Al Surf, 2014).   Agenda 21, 2004). Sustainability consists of three main aspects, the interrelation of them creates the sustainability. Sustainable development recognized in three terms, that are environmental protection, economic growth, and social development (Adams, 2006). These aspects should be available in order to achieve sustainability in any ILHOG 6HH ILJXUH ¶ · Generally sustainable buildings supposed to achieve the three main aspects of sustainability: Environmental sustainability, economic sustainability and Social sustainability 0F&RQYLOOH 7DEOH ¶ · VKRZV WKH PDLQ factors to achieve sustainability in the buildings considering the three aspects of sustainability. Constructions, involves into socio-economic fields and environmental field as well, through making remarkable use of natural resources and increase the generation of greenhouse gasses through buildings (Asif et al., 2005). According to Zainulabidin and Pasquire, (2005), the main principles in sustainable building are to implement the safety and comfort to occupants as well as the surrounding environment and society.

Kurdistan Region (Northern Iraq) Of Republic Of Iraq
Northern Iraq is a federal part in federal state of Iraq. The region bordered by Turkey from the north, by Iran from the East, by Syria from the west and from the south by the rest of Iraq. The capital RI WKH UHJLRQ LV ¶(UELO· 7KH SRSXODWLRQ RI Northern Iraq region is 5.2 million. It consist of Three governorates of Erbil, Slemani (including administration of Garmian), Duhok, and later in 2014 the forth governorate added to the region named Halabja. Those four governorates cover approximately 40,000 square kilometers which is larger than the Netherlands, Bahrain, and four times the area of Lebanon. This include the governorates administered by KRG, but does not contain areas of Kurdistan outside of KRG administration, such as Kirkuk (Soderberg, and Phillips, 2015).

Building Construction In Northern Iraq Region
The construction sector is a big part of the 1RUWKHUQ ,UDT 5HJLRQ·V HFRQRP\ EHFDXVH RI LWV influence on other sectors. The span of the development market is evaluated at $2.8 billion, with 95% of the market controlled by Turkish construction companies. According to ECU (Erbil &RQWUDFWRUV· 8QLRQ WKH WRWDO QXPEHUV RI construction contractors in the region is estimated by 2,500 contractors, there are 59 foreign Members out of that, 51 of them are 7XUNLVK DQG DUH ,UDQLDQ $FFRUGLQJ WR ¶WKH Turkish Daily NeZV· PHQWLRQHG WKDW WKH WRWDO numbers of the Turkish contracting companies are estimated by 634 companies working in Northern Iraq, (USAID, 2008;Alizadehsalehi et al., 2016). Building costs rising progressively in Northern Iraq, because of the rising of prices for fuel, materials, as well as labors. Since 2000, steel-bars have increased from $200 per ton to reach $700²$800 per ton in 2008. Also, the cost of cement increased from $25 per ton to $125²$150 per long ton. According to the Contractor Union in Northern Iraq asserted, that the construction costs have increased 6 time over 10 years (USAID, 2008).

The Elements of Sustainability in Building Construction
Previously many institutes and researchers such as; UNEP (2003), Huovila and Richter (1997), have viewed sustainable construction as an environmental issue. Consequently, this made many researchers to consider sustainable construction as a good environmental management, but this understanding of sustainable construction has been changed over the years. In the beginning they focus on the resources depletion subject through energy consumption, and reducing the impact on environment. Therefore the technical solutions through building material, and design concept were the goals (Sjostrom and Bakens, 1999). When sustainable construction have been understood as application for the principles of the sustainable development in construction sector, then it is generally accepted that similar to SD, sustainable construction addressed the three aspects of environmental, social and economic elements. Hence, and according to Gunatilake (2013) (2006) who used two different components, socio-economic; which refers to the construction process participants behavior in procuring assembled resources) and socioenvironmental, which refers to the social and environmental aspects. These two elements used in place of the more common three aspects (environmental, social, and economic)

Green Building and Green Building Rating System
There aUH PDQ\ GHILQLWLRQV IRU ¶*UHHQ %XLOGLQJ· Green Building can be defined as, the building whose construction and operation lifetime assure the most efficient and least degradation use of land, efficient use of water, energy and resources, and offer the healthiest environment (Gunatilake, 2013). The best design solution is that simulate all of the natural systems and conditions before site development and after the development, effectively.
Green building were described according to, Office of Federal Environmental Executive as; the process or application that increase the efficiency within buildings and their sites in usage of energy, water and material, and the buildings which reducing the impacts on the environment and human health. This could be achieved through better sitting, design, construction, use, maintenance, and demolishing (U.S. Green Building Council, 2006). Different terms were used by the researchers to address the same meaning. For example, Robichaud and Anantatmula (2011) mentions that green building is also giving the meaning of VXVWDLQDEOH FRQVWUXFWLRQ DQG ¶+LJK SHUIRUPDQFH EXLOGLQJ· RU ¶6XVWDLQDEOH EXLOGLQJ· ,Q JHQHUDO WKH sustainable construction leads to achieve green building in the same time high performance and sustainable one. Rating system is the building environmental performance assessment system; the purpose of this assessment system is to measure the environmental performance of the buildings. In UK In 1990, the Building Research Establishment, LLC (BRE) made an environmental evaluation technique (BREEAM), (BREEAM, 2009 (iiSEBE, 2009). Many other green rating systems have been created in many countries based on BREEAM, based on the needs of a country through environmental perspective. Rating systems evolved in coming years according to two main factors; user feedback and the technology development, in order to enhance the achievement of buildings in term of environmental level. Green rating systems started as a voluntary measure of environmental performance.
Nowadays certification is recommended for buildings in many countries. Currently, there are fifteen rating systems that give certifications to buildings performance DURXQG WKH ZRUOG VHH ILJXUH ¶ · 2QO\ WKUHH systems of them are using currently for structures outside of their nations of origin, there are; Leadership in Energy and Environmental Design (LEED), BREEAM, and Green Globes.

Barriers To Achieve Sustainable Construction Practices
There are several factors that could make barriers to achieve sustainable construction, and one of the main those factors are cost factor. In common sustainable buildings cost more than ordinary buildings through initial cost by around 2% to 7% (Castillo and Chung, 2005). Some projects can recover that extra cost through short time pay back. Awareness about sustainability and teaching stakeholders to think about value more than cost and think in the direction of longterm instead of short-term could overcome the problem. The political factor is another important factor, which refers to the deficiency in government legislations or support, lack of building construction specification and codes on sustainability (Rydin, et al., 2006). The successful sustainable construction is highly depending on the government commitment in addition to the regulation and legislation. There are many benefits regarding sustainable construction, hence, governments should encourage and incorporate sustainable construction practices in construction projects to stimulate private sectors and individuals to act in the same way (Dzokoto and Dadzie, 2013). The awareness and knowledge about sustainability have significant impact on the implementation of sustainable construction (Häkkinen, and Belloni, 2011). This factor refers to the shortage of professionals or professional knowledge, also un-awareness of clients to the benefits of applying the sustainability, or the misunderstanding about sustainability. In additional to that, shortage in knowledge about sustainable design. Williams and Dair (2007), in their research addressed that the hindrance front of applying sustainable construction is a shortage in stockholders awareness about sustainable measures that fall within their career field. Socio-Cultural factor is one of the barrier fronts of implementation sustainable construction. This can be realized through the deficiency in the demand on sustainable products by the client. This refers to the society resistance to change the traditional way or concepts in construction ways (Williams and Dair, 2007). The technical factor is one of the barriers which have significant effects on sustainable construction. The lack of sustainable materials or eco-friendly materials, also, the shortage of sustainable measurement tools, lack in technical potentials, skills and labor experience shortages (Nelms, et al., 2005). The leadership and management factor is another barrier in the way of achieving sustainable construction. It affects the construction industry and individual organizations to implement successful creative strategies, (Osaily, 2010).

Conclusion
The study identified the most important barriers front of the sustainable construction in the buildings based on literature review and deep theoretical analysis. The literature review came out with international list of barriers that could be hinders front of the sustainability in building construction sector. Also, to examine the ability of applying LEED green rating system in Northern Iraq as one of the international standards, and how it could be useful. The Author employed that to apply it in a questionnaire in order to get the opinion of professional people in this field or to find other barriers, which could be limited to the region of the study out of the international barriers. In spite of the lack of the professionals in the field of sustainable building construction and design in the region of the study, but the Author could get 20 participants to participate in a