METAL ROOF SYSTEMS Our structural and architectural roof panels are designed to meet the most demanding specifications. Our panels undergo superior performance testing and are engineered for complete design flexibility. We offer a variety of panel profiles, sizes, colors, and finishes to suit any project requirements. Here's the roof systems we offer. Span-Lock SL20 Tee-Lock TL25 Inter-Lock IL20 Double-Lock DL15 Ultra-Lock UL20 Snap-On-Seam SS10 Batten-Seam BS15 Nail-Strip NS15 Tapered-Seam TS Curved Radius Compound-Curve CC10 Not sure which roof? Contact us!