Garland’s new R-Mer Shield structural standing-seam roof system boasts a 2-inch-high vertical seam with an extruded aluminum clip and top rail system that provide wind-uplift performance, ensuring watertight protection in the harshest environments. Its symmetrically designed panel and cap allows for easy installation and provides flexibility during multiple phases of new construction, replacement or retrofit. The metal roof system can span over open purlins on slopes down to 1/4:12, making it suitable for retrofits over existing single-ply, built-up, modified bitumen and metal roof systems. The system design also provides a 1/2-inch clearance between the panel and substrate to increase ventilation beneath the panel.