Medallion-Lok

McElroy Metal's Medallion-Lok is a robust 1-inch mechanically double-locked standing seam panel, recognized as a workhorse in both commercial and high-end residential applications across the DFW metroplex. This system is designed for superior structural performance and longevity, manufactured from either 24-gauge steel or 0.032/0.040 aluminum. The mechanical seaming creates an exceptionally strong connection, effectively sealing out moisture and resisting uplift forces, which is essential for enduring DFW’s volatile weather patterns. The durability of Medallion-Lok is further enhanced by its premium Kynar 500®/Hylar 5000® PVDF finish. This advanced coating provides exceptional color retention and chalk resistance, ensuring the roof maintains its aesthetic integrity under the intense DFW sun. The finish also contributes to the panel's Class A fire rating and UL 2218 Class 4 impact resistance, offering significant protection against hailstorms common during our spring season. A key advantage of Medallion-Lok is the ability to run continuous panels up to 60 feet long, directly from the ridge to the eave. This eliminates the need for unsightly and potential leak points associated with panel overlaps, contributing to a truly seamless and watertight roofing system. The absence of exposed fasteners not only enhances the roof's clean aesthetic but also removes common points of failure, increasing the overall lifespan and performance. Medallion-Lok’s impressive wind uplift ratings, including UL 90, FM 4471, and Miami-Dade approvals, underscore its capability to withstand hurricane-force winds, far exceeding conventional DFW building codes. ADC Roofing's certified installation ensures that these panels are correctly seamed and secured, providing a 35-year Signature 200® Kynar 500 finish warranty. This product offers DFW property owners a high-performance, low-maintenance, and aesthetically pleasing roofing solution built to last.

Medallion-Lok's Class 4 impact resistance and robust wind ratings make it ideal for DFW's severe weather, particularly hail and high winds. Its Kynar 500 finish resists fading under intense sun, and its sleek profile often meets HOA aesthetic requirements for modern properties.

ADC Roofing installs Medallion-Lok with precision, utilizing specialized mechanical seaming equipment to achieve a 1-inch double-locked seam. We ensure proper thermal movement allowance and secure fastening to meet UL 90 and FM 4471 wind uplift standards, guaranteeing optimum performance.