On-site roll forming is a modern roofing production method where metal panels are fabricated directly at the job site rather than in a factory. A portable roll-forming machine is brought to the location, loaded with coils of metal, and used to shape panels to the exact length and profile required for the project — typically standing seam, R-panel, or custom sheet-metal profiles.

The Euro half-round gutter system is a traditional, yet highly refined rainwater management design widely used across Europe and increasingly popular in high-end U.S. residential and commercial applications. The “half-round” refers to its clean semicircular profile, which not only enhances aesthetics but also provides superior hydraulic flow compared to standard K-style gutters.

The OG (Ogee) or K-style gutter system is the most common rainwater management profile used in the United States. Its name comes from its shape — a decorative ogee curve resembling crown molding when viewed from the front. This style offers both functionality and aesthetics, making it ideal for residential, light commercial, and custom architectural applications.