A Study on the Selection of Building Material Components in Coastal Aggressive Environments (Case Study on Villa Construction in The Mandalika Tourism Area, Central Lombok) using the ANP and TOPSIS Methods

Baiq Firlahili Anindithia, Hariyadi Hariyadi, Ni Nyoman Kencanawati

Abstract


Selecting optimal building materials is critical for ensuring durability, cost-efficiency, and sustainability in tropical coastal environments, which are characterized by high humidity, salt-laden winds, and fluctuating temperatures. This study presents an integrated framework applying Analytic Network Process (ANP) and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) for prioritizing material alternatives—taken as a case study from villa construction in the Mandalika Tourism Area, Indonesia. Five key criteria and thirteen sub-criteria were identified and weighted through expert interviews and literature synthesis. The analysis considered materials for the main structural and non-structural components (columns, roof, wall, and roofing). Results revealed that environmental durability (0.352) and maintenance cost (0.252) are the most influential criteria, followed by aesthetics (0.158), material availability (0.132), and labor skill (0.106). The TOPSIS evaluation indicated that the optimal package consists of reinforced concrete for columns (0.742), lightweight steel for the roof structure (0.695), fiber cement for walls (0.668), and metal multiroof tiles for roofing (0.703), outperforming other alternatives in terms of technical resilience, lifecycle cost, and ease of construction. These findings are reinforced by empirical validation against recent literature and national standards. The proposed multi-criteria decision framework offers a robust reference for sustainable material selection in similar coastal regions.

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References


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