The tabernacle is a wooden pavilion with a gablet roof. Each face of the mansard roof is punctuated by a small louvered gablet. The chancel apse contains five windows, the central one with a gablet. The roof is clad in slate with gablet vents and octagonal coupled chimneys. The East Asian hip-and-gable roof is similar in concept to the gablet roof. Each gablet has a bargeboard and decorative timber screens. Its roof variations might includes hip and gablet roof (combination of gable and hip roof). The more elaborate overhanging gablet roof is called "Julang Ngapak", which means "bird spreading wings".