The Execution of a Green Roof Design. Analysis, Assessment, Concept and Design E-Book

Marvin Namanda

• Herausgeber: GRIN Verlag
• Sprache: Deutsch
• Veröffentlichungsjahr: 2016

Beschreibung

Wissenschaftliche Studie aus dem Jahr 2015 im Fachbereich Landschaftsarchitektur, Landespflege, Gartenbau, , Sprache: Deutsch, Abstract: This paper presents a green roof design where the client requires a specially engineered rooftop that supports plant life, measuring 37m by 44m. They requested a rooftop with a thin layer of low-growing, herbaceous plants that require low maintenance, thus an extensive green roof. The roof had to be a multi-layered build up consisting of a protection fleece layer and a recycled filter fleece under a loose blend of organic and mineral substrate under a planted sedum vegetation. Given the Australian climate, the plants should be densely spaced and able to live in meager soil and also survive exposure to cold, heat, and wind.

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Table of Contents

Part 1: Client Brief and Site Analysis

Client Brief

Anticipated Outcomes for the green roof

Feasibility Analysis of the Outcomes

Storm Water Management

Air and Noise Pollution Reduction

Heating and Cooling Mechanism for the building

Reducing the Urban Heat Island

Extension of roof life span

Attractive Roof top

Assessment of the Environmental, Social, and Economic Impacts of the Green Roof Technology

Introduction

Construction Phase

Negative Impacts

Ecological imbalances

Solid waste generation

Noise and Air Pollution

Positive Impacts

Employment Opportunities

Improving the growth of the economy

Operation Phase Impacts

Negative Impacts

Increased water use

Positive Impacts

Part 2: Concept Design

Introduction

Technical and Habitat Considerations

Part 3: Final Design

Figure 1 Plan View Scale 1:76

Figure 2 Plan View Key

Figure 3 Horizontal View of the extensive green roof's material layers

Figure 4 Final Model of the green roof on the building

Planting Schedule

Plant description and requirements

Maintenance Schedule for Robin’s Center Green Roof Systems

Spring Schedule

Autumn Schedule

References

Part 1: Client Brief and Site Analysis

Client Brief

The client requires a specially engineered rooftop that supports plant life, measuring 37m by 44m.

They requested for a rooftop with a thin layer of low-growing, herbaceous plants that require low maintenance, thus an extensive green roof. The roof had to be a multi-layered build up consisting of a protection fleece layer and a re-cycled filter fleece under a loose blend of organic and mineral substrate under a planted sedum vegetation.

Given the Australian climate, the plants should be densely spaced and able to live in meager soil and also survive exposure to cold, heat, and wind.

Anticipated Outcomes for the green roof

1. Storm water management

2. Reduction in the “Heat Island Effect”

3. Reduced cases of air and noise pollution

4. Extended life of the rooftops

5. Provision of a heating and cooling mechanism for the building

6. An attractive rooftop as an alternative to the traditional rooftop

Feasibility Analysis of the Outcomes

The increasing global concern for the environment has led to the development of environmentally friendly constructions. The adoption of the green roof technology is perhaps a solution to the environmental impacts of a building. The Collingwood-based Robin’s Landscape Designers Company is considering installing a green roof on part of the new Robin Center in a bid to enhance the company’s image as an environmental conscious. The company has thus enlisted the assistance of our consulting team to investigate the feasibility and the eco-social-economic impacts of the project.

Storm Water Management

 According to the United Nations (2002), storm water management is a term used to describe the control of discharge and runoff resulting from rainfall on a particular area. Urban areas like Collingwood make use of storm water management due to their increased impermeability to rainfall infiltration as a function of roads, roof, and parking lots among others. The rationale of storm water management is to attenuate the increased runoff to conditions and levels that the receiving watercourse is capable of handling. Green roof technology is an effective Storm Water Management control method.