
Waterproof Alkali-Resistant Perforated Cement Board for Outdoor Landscape. Superior Acoustic Performance: NRC 0.7 with adjustable perforation patterns for broadband frequency absorption. Class A Fire Safety: Non-combustible with zero smoke and toxicity index for maximum safety. Eco-Friendly Materials: 100% free of asbestos, formaldehyde, benzene, and radioactive elements. Moisture Resistant: Maintains physical properties and structural stability in humid conditions. Customizable Dimensions: Thickness and size can be tailored to specific project requirements. Versatile Applications: Ideal for offices, classrooms, hospitals, hotels, and entertainment venues. 5-Year Warranty: Covers manufacturing defects, flame retardant performance, and emission compliance. Lightweight & High Strength: Easy to handle and install with excellent rigidity and durability.