Topic 6 : Specialized planting

What is the primary benefit of installing a green wall in an urban environment?

• Increase the urban noise pollution

• Reduce the speed of vehicular traffic

• Increase the absorption of sunlight to buildings

• Improve air quality and provide thermal insulation

Which of the following plants is least suitable to be planted on green roof?

• Cycas revoluta

• Plumeria rubra

• Shorea cordata

• Iresine herbstii

What is the primary consideration when selecting plants for a green roof?

• Native or drought-tolerant species that can thrive in the local climate and soil conditions

• Aesthetics and visual appeal, ensuring the roof enhances the building's overall appearance

• Plants that able to provide significant shade and cooling benefits to reduce the urban heat island effect

• Exotic plants species that offer unique foliage colours and textures, creating a diverse and vibrant rooftop ecosystem

Identify the name of green wall system that shown above

• Modular living walls

• Direct green facades

• Continuous living walls

• Indirect modular trellis

A waterproofing membrane is commonly applied as the underground layer to protect roots against mechanical damage in a rooftop garden

• True

• False

Vertical garden can include a variety of plant types, including ornamental plants, herbs and even certain vegetables such as Cassia fistula

• True

• False

Type of a green roof that is suitable to be constructed on a lightweight building is extensive

• True

• False

The colour scheme is an important aesthetic aspect of a plant selection in green wall.

• True

• False

Arrange the following steps for green wall installation according to the most suitable sequence.
I.           Installation of plants
                II.           Installation of growing media

                   III.           Installation of irrigation system
                     IV.           Installation of supporting structure

• II,IV,I,III

• III,II,IV,I

• IV,II,III,I

• I,IV,II,III

Green roofs are potential for urban agriculture, in cities where there is lack of land for cultivation, reducing the environmental impact related to food security.

• True

• False