Evaluation Of Green Roof As Green Technology For Urban Stormwater Quantity And Quality Controls

Lariyah Mohd Sidek, Kah Hoong Kok, Z. A. Roseli

Research output: Contribution to conferencePaper

Abstract

Nowadays, people mutually recognise that global warming is actually a fact rather just a
scientific theory and it has been fuelled up quickly as resulted from rapid urbanisations.
Driven by environmental needs, green building index (GBI) was established in Malaysia to
drive the initiative to lead the property industry towards becoming more environmental
friendly. Green roofs (roof with vegetated cover), as one of the assessment criteria of GBI,
are gaining attention in the Malaysian society as a versatile new environmental friendly
mitigation technology. This paper evaluates the qualitative and quantitative performances of
extensive green roof at Humid Tropics Center under local tropical climate. Simulations
showed that the peak discharge was reduced up to 26% in relation to impervious brown roof.
Its reduction ability decreased for storms with intense rainfall. Increment of pH was observed
for the green roof runoff and the runoff water quality ranged between class I and II under
WQI. High concentrations of phosphate were noticed in the runoff samples and substrates
(fertilised planting soil) might be the potential contributor. Findings indicate that there was a
reduction of approximately 1.5°C for indoor temperature of the building after installation of
the extensive green roof.
Original languageEnglish
Pages1-9
Number of pages9
Publication statusAccepted/In press - 19 Nov 2014

Fingerprint

stormwater
quality control
roof
runoff
environmental technology
humid tropics
peak discharge
evaluation
global warming
urbanization
phosphate
water quality
substrate
rainfall
industry
soil
temperature

Cite this

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title = "Evaluation Of Green Roof As Green Technology For Urban Stormwater Quantity And Quality Controls",
abstract = "Nowadays, people mutually recognise that global warming is actually a fact rather just ascientific theory and it has been fuelled up quickly as resulted from rapid urbanisations.Driven by environmental needs, green building index (GBI) was established in Malaysia todrive the initiative to lead the property industry towards becoming more environmentalfriendly. Green roofs (roof with vegetated cover), as one of the assessment criteria of GBI,are gaining attention in the Malaysian society as a versatile new environmental friendlymitigation technology. This paper evaluates the qualitative and quantitative performances ofextensive green roof at Humid Tropics Center under local tropical climate. Simulationsshowed that the peak discharge was reduced up to 26{\%} in relation to impervious brown roof.Its reduction ability decreased for storms with intense rainfall. Increment of pH was observedfor the green roof runoff and the runoff water quality ranged between class I and II underWQI. High concentrations of phosphate were noticed in the runoff samples and substrates(fertilised planting soil) might be the potential contributor. Findings indicate that there was areduction of approximately 1.5°C for indoor temperature of the building after installation ofthe extensive green roof.",
author = "{Mohd Sidek}, Lariyah and Kok, {Kah Hoong} and Roseli, {Z. A.}",
year = "2014",
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}

Evaluation Of Green Roof As Green Technology For Urban Stormwater Quantity And Quality Controls. / Mohd Sidek, Lariyah; Kok, Kah Hoong; Roseli, Z. A.

2014. 1-9.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Evaluation Of Green Roof As Green Technology For Urban Stormwater Quantity And Quality Controls

AU - Mohd Sidek, Lariyah

AU - Kok, Kah Hoong

AU - Roseli, Z. A.

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Y1 - 2014/11/19

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AB - Nowadays, people mutually recognise that global warming is actually a fact rather just ascientific theory and it has been fuelled up quickly as resulted from rapid urbanisations.Driven by environmental needs, green building index (GBI) was established in Malaysia todrive the initiative to lead the property industry towards becoming more environmentalfriendly. Green roofs (roof with vegetated cover), as one of the assessment criteria of GBI,are gaining attention in the Malaysian society as a versatile new environmental friendlymitigation technology. This paper evaluates the qualitative and quantitative performances ofextensive green roof at Humid Tropics Center under local tropical climate. Simulationsshowed that the peak discharge was reduced up to 26% in relation to impervious brown roof.Its reduction ability decreased for storms with intense rainfall. Increment of pH was observedfor the green roof runoff and the runoff water quality ranged between class I and II underWQI. High concentrations of phosphate were noticed in the runoff samples and substrates(fertilised planting soil) might be the potential contributor. Findings indicate that there was areduction of approximately 1.5°C for indoor temperature of the building after installation ofthe extensive green roof.

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