Building annexes with sandwich panels offering excellent thermal insulation: significantly saves energy and air conditioning consumption due to its resistance to high temperatures. Super fast execution: A complete annex can be finished in a few days compared to cement construction. Lightweight and durable: Does not impose a heavy load on roofs, making it ideal for upper annexes. Resistance to weather factors: Resistant to rainwater leakage, humidity, and fires. Finishing flexibility: Accepts the installation of various decorations and paints from the inside and outside, such as gypsum board and cement board.