Energy Saving Potential of Green Facade in Hong Kong - Dissertation Example

The up to date technology of green wall system in other countries will be reviewed. Existing examples were examined for assessing the potential development in s Hong Kong setting. 1.1 Objective The social, environmental and visual impression that a green wall system can make towards providing a sustainable built environment in cities are accepted worldwide. One of the objectives of this dissertation is to conduct a thorough review of the update design principle and technology on the green wall system in order to increase public understanding and awareness.

Basically, the purpose of this dissertation is divided into three parts. 1.1.1 The first purpose is to present the findings of the desktop literature search into the worldwide green wall innovations. This includes, but is not limited to; A brief definition and classification of green wall systems; A list of the benefits for the public and private sectors; A brief list of the benefits for the environment; 1.1.2 The second purpose is to review green walls development in Hong Kong including: Review of present government pilot project and commercial project; Review of constraint for the application in Hong Kong; A brief of the present green building assessment method in Hong Kong. 1.1.

3 The last purpose is to demonstrate how to demonstrate the green wall could be applied in a Hong Kong setting. . Green walls need to be maintained routinely in order for the plants to survive. Counties that use green walls will be examined. The difference between residential and commercial green walls and the purposes will be described. The green walls have different forms in order to fill the area’s specific need. The irrigation, run-off and water retention of the green walls is a consideration that should be looked at in the developmental stage of a new construction project or in the construction of the green wall.

All of these topics will be discussed in this section and sub-sections. 2.1 Definitions of the green walls In the current market there are minimal discrimination between domestic and commercial products and systems. Although there are some major differences relevant to this study. The scale of commercial green wall systems for multi-storey buildings requires a different standard to the domestic scale systems. The materials need to have a relatively high quality and longevity to cater for the rigors of extreme conditions such as weather, pollution, and other conditions relevant to the green walls location.

For example, the excessive solar radiation in the high-density urban environment would damage UV unstable materials in a short period. Structural loading on the building framework to support the green wall system, wind loading in addition (i.e. the higher the green wall the greater the wind loadings to be induced), requires more precise structural design than with smaller scale domestic applications. Furthermore, the issue of repair and maintenance must be integrated into the building systems, rather than applied as an add-on component (Graeme, Christine, Milos and Michael Andrew 2010), such a