H205 : Green Roofs In Assessment Answers

The topic is Green Roofs in Construction
1. INTRODUCTION
2.STRENGTHS/ADVANTAGES 
3.WEAKNESS/DISADVANTAGES 
4.OPPORTUNITIES 
5.THREATS 
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Answer:

Green Roofs in Construction

Advantages

The cost of construction is one major factor that one does consider before taking on the project (Kline and Rosenberg, 2010). The roof is a significant section of a structure that takes in much of finances. Hence, many will always desire roofs that will last for a longer period allowing for them to spend less making the management of the construction much easier (Kline and Rosenberg, 2010). Green roofs play such a role excellently (Li et al, 2015). They are known for being in a position to maintain their life for more than 60 years (Li et al, 2015). Apart from the roofs, the air conditioning devices also increase the cost of coming up with a comfortable structure (Reddy et al, 2016). The green roofs do reduce such a cost, as they are known for being excellent in conditioning the air getting into the house at a particular time of the day (Reddy et al, 2016). Using one aspect of construction in solving several challenges associated with construction can facilitates efficient construction management. The smog greatly interferes with the air quality that the community does need for its survival. Several members of the community venturing into such forms of roofing will result in a significant improvement of the air quality in the area (Li et al, 2015). The practice will too result in the reduction of the impact of carbon monoxide in addition to the elimination of nitrogen pollution from the rain. The green vegetation of the roofs makes the environment more beautiful significantly improving on the aesthetics in the society. A common example is seen with Hypericum perforatum. The air quality will ensure that each person to manage the construction efficiently hence, contributing to efficient construction management.

Disadvantages

Before the use of the green roofs, there was the use of traditional roofs that have always been produced at a lower cost (Tietenberg and Lewis, 2016). Such a trend led to an increase in the number of individuals who could make use of the roofs for their houses (Tietenberg and Lewis, 2016). However, the green roofs led to the rise in the cost needed for the installation of the roof. The roof is much heavier compared to the traditional roofs (McAlester, 2015). Most structures have experienced an increase in the load they have to support for the stability of the building to be maintained (McAlester, 2015). Hence, there is a need for extra support to support the load. Several structural bars have been implemented in structures that greatly help in dealing with such weights (McAlester, 2015). The major disadvantaging factor is that the bars are highly expensive and will call for an increase in the expenditure needed to come up with the structure (You et al, 2015). Hence, such an increase in cost led to most people not being in a position to manage to install it.The costs do not stop at that stage, the maintenance of the roof will call for spending more, and spending more time on the roof for it to sustain its thriving atmosphere as it is expected by many (You et al, 2015). One can either do the task by themselves or assign it to someone else. The increased costs made the management expensive for some individuals in the society. One has to ensure to harbor extra finances so as to manage handling the whole construction project with high levels of efficiency. The traditional Buddleais was one of the common plants that is associated with increased higher costs of installing and maintenance. Most of the landscapers and architects tend to avoid it citing such form of traits associated with them.

Opportunities

Vegetation has diverse effects on the society. It can affect the environment and living of individuals both positively, and negatively depending on traits associated with it (Lippmann, 2017). Most human beings will seek to attain vegetation that can lead to an increase in food production, increase the beautiful nature of the home environment, or instead lead to a sweet scent in the home serene (Lippmann, 2017). The adoption of the green roofing system plays a significant role in pushing for such forms of activities in the homes of many (Lippmann, 2017). As a result, there is a wide range of opportunity for the nurturing of such plants if the system is to be adopted by each person (Jim, 2015). The urban ecosystem has several constituents (Kabisch, 2015). One of the major components is the urban greenery. The ecosystem plays diverse functions in the society including the acting as a natural sink for carbon and the other harmful emissions to the environment (Kabisch, 2015). However, there has been rapid urbanization that led to the high rates of the depletion of the green component of the urban ecosystem. The use of the green roofs as a roofing method serves as an excellent opportunity to ensure that the green component of the urban ecosystems is brought back to life (Jim, 2015), hence offering another chance for comfort living of individuals in the urban areas. The result is that the picture regarding construction management will transform and many will view it as an avenue to make the industry beautiful. The Trailing Ice plant and Wavy hair grass are some of the examples of vegetation that make the scenery to be beautiful with green and yellow coloring. Organisms such as the Green Finch love being positioned in such areas. The result will be the aesthetic nature of the environment is greatly improved.

Threats

Better performance in the society calls for having extra knowledge in handling diverse tasks while embracing high levels of professionalism (Dror, 2017). Installation and maintenance of green roofs call for highly skilled individuals who have a better understanding of the operation of diverse vegetation and the different loads in structures to not only successfully install the roof but also make it appealing (Dror, 2017). However, the limited knowledge capacity serves as a threat to continuous better green roofs being displayed in the society (Matthews and Byrne, 2015). The government regulations significantly help in establishing order in the society (Fukuyama, 2017). They will direct on the kind of roofs to be embraced (Fukuyama, 2017). Apart from that, they can always come in to offer support in the cases where individuals are intending to carry out the activity but lack sufficient finances and skill (Fukuyama, 2017). However, such regulations and incentives have not been there in the present society hence, acting as a threat to the existence of excellent green roofs in the nation, which will push for a better community (Matthews and Byrne, 2015). The maintenance cost that increases every other day depending on the changes in climate is too a significant threat. Many might end up fearing for its installation due to such expenses associated with it.  There for the construction managers have to try much and attain more knowledge regarding the installation of such roofs. The industry will therefore, be effective citing their ability to handle diverse aspects associated with the industry.

Introduction:

Buildings will always need roofs for the proper accomplishment of their functions (Bryson, 2018). Different types of roofs are embraced in the society. Depending on the environment of living, various types roofs will be preferred to ensure that comfort living is achieved (Bryson, 2018). An individual bringing up a building will always consider the type of roof to be habited on the building (Francis and Lorimer, 2011). The main reason is that they are guided by different intentions before choosing to coming up with the structure. Therefore, to ensure that the whole purpose is achieved fully, the roofs will be a significant consideration (Francis and Lorimer, 2011). Green roofs form one of the standard types of roofs that are loved by many citing the advantages associated with it and opportunities that come about when making use of it (Francis and Lorimer, 2011). The roofs come with particular properties that allow it to achieve the intended purpose in the society. Vegetation forms the primary cover for such a roof (Nagase and Dunnett, 2012). Apart from that, it also has a medium that offers a conducive environment for the growth of the related vegetation contained in the roof. The waterproofing membrane forms the base for such growth that is to be experienced (Nagase and Dunnett, 2012). In making it more stable through it sustainability process, it may go to the extent of having root barriers and irrigation systems. Embracing the green roofs will greatly help in solving the depletion of the wildlife from the urban areas and the beautiful views of the areas. For example the Yarrow plants in green roofs that help in increasing the availability of the butterflies, moths and the flies.

Reference:

Bryson, J.M., 2018. Strategic planning for public and nonprofit organizations: A guide to strengthening and sustaining organizational achievement. John Wiley & Sons.

Dror, Y., 2017. Public policy making reexamined. Routledge.

Francis, R.A. and Lorimer, J., 2011. Urban reconciliation ecology: the potential of living roofs and walls. Journal of environmental management, 92(6), pp.1429-1437.

Fukuyama, F., 2017. State building: Governance and world order in the 21st century. Profile Books.

Jim, C.Y., 2015. Assessing climate-adaptation effect of extensive tropical green roofs in cities. Landscape and Urban Planning, 138, pp.54-70.

Kabisch, N., 2015. Ecosystem service implementation and governance challenges in urban green space planning—The case of Berlin, Germany. Land Use Policy, 42, pp.557-567.

Kline, S.J. and Rosenberg, N., 2010. An overview of innovation. In Studies On Science And The Innovation Process: Selected Works of Nathan Rosenberg (pp. 173-203).

Li, D., Sun, T., Liu, M., Yang, L., Wang, L. and Gao, Z., 2015. Contrasting responses of urban and rural surface energy budgets to heat waves explain synergies between urban heat islands and heat waves. Environmental Research Letters, 10(5), p.054009.

Lippmann, W., 2017. Public opinion. Routledge.

Matthews, T., Lo, A.Y. and Byrne, J.A., 2015. Reconceptualizing green infrastructure for climate change adaptation: Barriers to adoption and drivers for uptake by spatial planners. Landscape and Urban Planning, 138, pp.155-163.

McAlester, V.S., 2015. A Field Guide to American Houses: The Definitive Guide to Identifying and Understanding America's Domestic Architecture. Knopf.

Nagase, A. and Dunnett, N., 2012. Amount of water runoff from different vegetation types on extensive green roofs: Effects of plant species, diversity and plant structure. Landscape and urban planning, 104(3-4), pp.356-363.

Reddy, T.A., Kreider, J.F., Curtiss, P.S. and Rabl, A., 2016. Heating and Cooling of Buildings: Principles and Practice of Energy Efficient Design. CRC Press.

Tietenberg, T.H. and Lewis, L., 2016. Environmental and natural resource economics. Routledge.

You, Y.J., Park, K.T., Seo, D.W. and Hwang, J.H., 2015. Tensile strength of GFRP reinforcing bars with hollow section. Advances in Materials Science and Engineering, 2015.