Premium Gutters. The 5N1 Gutter System is intended to be installed when the house is built. It mounts by means of an integral drip-edge and soffit channel, eliminating any need for exposed screws. (The assembly also includes an integral leaf guard.) According to the manufacturer, the heavy-duty recycled aluminum product can be powder-coated to match any color, or to look like copper or steel. Installed costs range from $17 to $22 per foot. MarPec, 319/540-6795, 5n1.com.