Skip to main content

Effectiveness of an intensive green roof in a sub-tropical region

Journal Article


Abstract


  • The overall assessment of an intensive green roof located in a sub-tropical region has been undertaken.

    The results showed a fairly good agreement between the published and measured solar radiation data and

    also confirmed July and January as the hottest and coldest periods, respectively, for the region. The soil

    was established as a silt type with good planting medium properties for green roofs. The overall thermal

    performance showed that the green roof provided an average temperature reduction of 3.3C (i.e. 50%

    temperature reduction) through the roof in July. Equally, its performance was remarkable during the

    coldest period of January. A maximum differential temperature of 15.5C was achieved with the soil

    contributing to 24% of the temperature difference through the roof. Further studies are, however, needed

    to cover a wider area of influence such as effects of different types of construction materials, plants,

    locations and soil. In view of the limitation of the theoretical model, it would also be useful to consider

    some of the factors which were either neglected or assumed to be constant in any future comparative

    studies.

Publication Date


  • 2013

Geographic Focus


Citation


  • Darkwa, J., Kokogiannakis, G. & Suba, G. (2013). Effectiveness of an intensive green roof in a sub-tropical region. Building Serives Engineering Research and Technology, 34 (4), 417-432.

Scopus Eid


  • 2-s2.0-84885139603

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3636

Number Of Pages


  • 15

Start Page


  • 417

End Page


  • 432

Volume


  • 34

Issue


  • 4

Abstract


  • The overall assessment of an intensive green roof located in a sub-tropical region has been undertaken.

    The results showed a fairly good agreement between the published and measured solar radiation data and

    also confirmed July and January as the hottest and coldest periods, respectively, for the region. The soil

    was established as a silt type with good planting medium properties for green roofs. The overall thermal

    performance showed that the green roof provided an average temperature reduction of 3.3C (i.e. 50%

    temperature reduction) through the roof in July. Equally, its performance was remarkable during the

    coldest period of January. A maximum differential temperature of 15.5C was achieved with the soil

    contributing to 24% of the temperature difference through the roof. Further studies are, however, needed

    to cover a wider area of influence such as effects of different types of construction materials, plants,

    locations and soil. In view of the limitation of the theoretical model, it would also be useful to consider

    some of the factors which were either neglected or assumed to be constant in any future comparative

    studies.

Publication Date


  • 2013

Geographic Focus


Citation


  • Darkwa, J., Kokogiannakis, G. & Suba, G. (2013). Effectiveness of an intensive green roof in a sub-tropical region. Building Serives Engineering Research and Technology, 34 (4), 417-432.

Scopus Eid


  • 2-s2.0-84885139603

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/3636

Number Of Pages


  • 15

Start Page


  • 417

End Page


  • 432

Volume


  • 34

Issue


  • 4