MS 1 Modular Roofing by MAC Metal Architectural is a prefinished steel roofing system that combines clean architectural lines with long-term durability. Designed as interlocking modular panels, it delivers the refined appearance of standing seam roofing with hidden fasteners for a sleek finish. Manufactured from recycled steel and available in a wide palette of finishes, MS 1 Modular is engineered for longevity, with a 40-year warranty and a service life extending beyond 50 years.
From a sustainability perspective, the system offers significant benefits: it contains up to 90 percent recycled content and is fully recyclable at the end of its life, reducing the need for virgin material extraction. Its durability lowers the frequency of replacement, minimising lifecycle impacts, while high-performance finishes improve thermal reflectivity and energy efficiency. The product is supported by a verified Environmental Product Declaration (EPD) and Health Product Declaration (HPD), ensuring transparency of material composition and lifecycle impacts, and contributing to green building certifications such as LEED.