Assessment of the impact of cool roofs in rural buildings in India

Garg, Vishal; Kotharkar, Rajashree; Sathaye, Jayant; Rallapalli, Hema; Kulkarni, Nilesh; Reddy, Niranjan; Rao, Prabhakara; Sarkar, Ashok

doi:10.1016/j.enbuild.2015.06.043

Cited by 42 publications

(15 citation statements)

References 8 publications

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Section: Comparison On 1# and 3# Roomssupporting

confidence: 89%

“…[42][43][44][45]. Garg The test results showed that the temperature of the outer surface, inner surface of the roof and the indoor air all showed some temperature reduction, which basically were consistent with the conclusions of this study [42]. Generally, different performance of roof sensible reflective including 0.3, 0.5, 0.7 and 0.86 have been simulated and the results indicated that a high roof reflectance (0.86) can greatly reduce the roof surface temperature about 26 • C compared with traditional roof (0.3) [43].…”

Section: Comparison On 1# and 3# Roomsmentioning

confidence: 97%

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Experimental research on a novel energy efficiency roof coupled with PCM and cool materials

Chen

Liu

et al. 2016

Energy and Buildings

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Section: Comparison On 1# and 3# Roomssupporting

confidence: 89%

Section: Comparison On 1# and 3# Roomsmentioning

confidence: 97%

Experimental research on a novel energy efficiency roof coupled with PCM and cool materials

Chen

Liu

et al. 2016

Energy and Buildings

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“…As the aid of study, building energy modeling and numerical analysis can also present the performance of energy saving by varying the roofs within insulation even in tropical climate places 15,16 . Other than that, the alternative way is whitening the roof, so it can bring the effect in reducing the indoor air temperatures in building 17 . As a review, insulation and paint are common interactive solution to reduce the cooling load of the building as an effort of decreasing energy demand of the building 18 .…”

Section: Introductionmentioning

confidence: 99%

Building Beneficial Roof Insulation in Vertical Housing : Physical and Economical Selection Method

Alam¹,

Nasruddin²,

Tirta³

et al. 2019

Evergreen

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Indonesian government is accelerating the development of national housing through its stateowned company, in which all planning designs have been already established including urban design and urban revitalization. But unfortunately the detailed engineering of installation building, especially roof insulation building has not gotten much attention yet. Main contractor was paid for the project but the insulation should be an extra work to be paid due to its status as variant order. So, any kind of insulation types are pleased to be proposed. This paper proposed Material and Cost-Based methods that was studied by comparing three proposed materials from physics and economic point of view with its theory and simulation data whereas computer simulation also conducted. Evidently, insulation has an important role to be installed due to gaining solar heat reduction from solar exposure through the rooftop based on indoor thermal condition and energy of cooling utilities. Besides, those methods presented the simplified decision for company to select a beneficial material to be installed.

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“…A cool roof employs a highly reflective roof covering, which is cost effective, environmentally friendly, and passively contributes to reducing building energy consumption in an air-conditioned building and improving thermal comfort in buildings without air-conditioning. 7 Overall, a cool roof increases human comfort, reduces the heat island effect, and lowers the temperature of the roof surface and air.…”

Section: Introductionmentioning

confidence: 99%

Potential for cooling load reduction in residential buildings using cool roofs in the harsh climate of Saudi Arabia

Algarni¹

2018

Energy & Environment

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To raise awareness of the potential of passive technologies, this paper addresses the major problem of maintaining the comfort of the built environment in the harsh climate of Saudi Arabia by estimating the potential reduction in residential building energy consumption resulting from the use of highly reflective “cool roof” details. To conduct this estimate, the impacts of cool roof installation on the cooling and heating loads of residential buildings in 13 major selected sites in Saudi Arabia are estimated. It is found that the use of a cool roof reduces the annual energy consumption required for building cooling by between 110.3 and 181.9 kWh/m2, while the maximum increase in annual energy consumption due to winter heating of cool roof equipped buildings in hot-dry climates is only 4.4 kWh/m2. The results show that installing a cool roof in place of a typical or dirty roof yields a reduction in peak roof conduction. This investigation concludes that the use of the passive cool roof technology is an effective method for improving the thermal performance of a roof and thus reducing building energy consumption in the harsh climate of Saudi Arabia and similar extreme climates.

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Assessment of the impact of cool roofs in rural buildings in India

Cited by 42 publications

References 8 publications

Experimental research on a novel energy efficiency roof coupled with PCM and cool materials

Experimental research on a novel energy efficiency roof coupled with PCM and cool materials

Building Beneficial Roof Insulation in Vertical Housing : Physical and Economical Selection Method

Potential for cooling load reduction in residential buildings using cool roofs in the harsh climate of Saudi Arabia

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