Irfan Nur Rachmadi Putra; Syamsul Hadi; Gibran Kurnia Ramadhan; Mohammad Rafi Rahman; Muhammad Syahrul Pahlevi
Less rigid, easy to rust trapezoidal wave galvalum roof as a problem encountered in industrial buildings, warehouses, commercial facilities, and residential homes. The purpose of making a trapezoidal wave galvalum roof with dimensions of 600x102 cm, height 3 cm, thickness 0.30 mm. The manufacturing method includes: design of a trapezoidal wave galvalum roof with dimensions of 600x102 cm, height 3 cm, thickness 0.30 mm; selection including purchase of Aluminum Zinc coated steel (BJLAS) materials; design and manufacture of roll-forming; formation of a trapezoidal wave profile with dimensions of 600x102 cm, height 3 cm; cutting the trapezoidal wave galvalum roof every 6 m; and inspection of quality-dimensions-standards. The result of the manufacture is a trapezoidal wave galvalum roof with dimensions of 600x102 cm, 3 cm high, 0.30 mm thick with a total manufacturing cost of Rp. 328,000/sheet, and a manufacturing duration of 1.2 minutes/sheet, which means that the trapezoidal wave galvalum roof meets the dimensional specifications of SNI BJLAS G550-SNI 4096:2007 and is suitable for application as a roof covering system on medium-span buildings.