The ceiling differs according to the structure of the building. For details, consult the builder or contractor in charge of internal finishing.
After the roof cover has been removed, it is important to reinforce the roof structure and maintain the correct horizontal leveling of the roof to prevent the roof from vibrating.
(1) Cut and remove the roof structure.
(2) Reinforce the cut surface of the roof structure and attach it to secure the end of the roof panel.