Passive Cooling Retrofit for Terrace House in Malaysia




Passive cooling strategy is proven to be effective to resolve thermal discomfort. A study was conducted to study the effectiveness of natural ventilation combined with various building retrofit methods on improving the indoor thermal environment for terrace houses under hot-humid climates, especially by using roof cover. Natural ventilation was found to improve the room’s thermal condition, but still not enough to achieve thermal comfort. The use of roof cover did maintain consistency in surface temperature on roof tiles and reduced convective heat flux of approximately 70~80% in the attic and 88% in the room. The mean surface temperature for the top surface of roof tiles and air temperature in the attic during daytime was reduced to approximately 4.4 °C and 1.6 °C, respectively. Meanwhiles, the daytime mean air temperature in the room was reduced by approximately 1 °C. Due to the effectiveness of improving the thermal comfort in the house, roof cover with HDPE nets has the potential to be developed as a passive building retrofit method for houses with roof tiles in hot, humid climate regions.

Research Ecosystem
Universiti Teknologi Malaysia UTM Nexus - Research & Innovation

Office of Deputy Vice Chancellor (Research & Innovation)

DVCRI Profile Johor Bahru Office Kuala Lumpur Office

Higher Institution Centre of Excellence (HI-COE)

Advance Membrane Technology Research Centre - AMTEC Institute of Noise & Vibration - INV Wireless Communication Centre - WCC

Research Institute

Centre of Excellence (COE)

Institute of High Voltage & High Current - IVAT UTM-MPRC Institue for Oil & Gas - IFOG Centre for Artificial Intelligence & Robotics - CAIRO Centre for Engineering Education - CEE Centre for Advanced Composite Materials - CACM Innovation Centre in Agritechnology for Advanced Bioprocessing - ICA Institute of Bioproduct Development - IBD

Service Entity

Research Management Centre - RMC Penerbit UTM Press Centre for Community & Industry Network - CCIN Innovation & Commercialisation Centre - ICC University Laboratory Management Centre - PPMU Institut Sultan Iskandar - UTM-ISI

Get the latest news & events

Customer Satisfaction Index