3.5mm App Membrane Bitunil – Flat Roof Waterproofing Solution

3.5mm APP Membrane is a high-quality waterproofing solution designed to protect roofs and concrete surfaces from leaks and harsh weather. Made with modified bitumen, it offers strong adhesion, flexibility, and long-lasting durability. Ideal for flat roofs, basements, and terraces, it provides reliable protection against water penetration and UV damage. Easy to install using torch application, making it perfect for both new construction and repairs.