Metal sheet roofs are highly prone to expansion, contraction, and corrosion, making waterproofing a critical part of long-term maintenance. Our metallic sheet roof waterproofing services in Qatar provide a complete protective system that safeguards your roof from water leakage and rust. As one of the best waterproofing companies in Qatar, we begin by sealing visible cracks with Greenseal MS 017 silicone sealant to ensure a watertight base. This is followed by one coat of Greenseal 103 Aluminum Primer—a zinc-rich, anti-rust primer that strengthens the metal surface and prevents corrosion. We then apply two coats of Greenseal Polydek Super P, a high-performance, water-based PU coating that offers superior waterproofing and UV resistance. A fiber mesh layer may be added depending on structural movement and site conditions for enhanced reinforcement. With a warranty of up to 10 years (conditions apply), our system delivers durable and dependable waterproofing for industrial and residential metal roofs alike.