The Comparison of Energy Usage of Modular Housing using Sefaira®

Abstract

As the fourth largest population in the world with 52% urban inhabitant, housing as the most primer need, Indonesia has a significant impact on urban energy consumption. The backlog of housing in the urban area is known as much as 8%. The government tries to fulfill those needs by supplying an affordable house that requires not more than 36m2 and less than IDR 121 million The need for affordable housing occupies the largest ratio in urban areas. This is related to the middle-class family’s income structure that 21% of the total population of Indonesia. The complexity in modular affordable house design that derives from the building material, construction cost, as well as the energy consumption, later becomes the urgency of this study. This paper aims to compare simulating several modular houses with 36m2 total ground floor area, namely: 6m x 6m, 4m x 9m, and 3m x 12m module houses using metal wall cladding and Glassfibre Reinforced Cement (GRC). From these comparisons will be found modular house designs and material that have optimal energy efficiency. This paper presents modular house design. The modular house design will recommend which modules and materials will best optimize the building’s performance, thus optimizing energy efficiency based on the simulation results. Based on each material’s U-Value, a house with a GRC wall has lower energy consumption than a house with metal wall cladding because GRC has a lower U-Value.