Metal Roofing Systems
Union offers both exposed fastener and concealed fastener metal roofing systems for residential, commercial, and post-frame applications. As the name implies, exposed fastener metal roofing systems use screw fasteners that are visible on the exterior of the roof surface after installation. These exposed fastener metal roofing products are economical, have been in service for decades, and are extremely popular in a wide variety of applications. In concealed fastener metal roofing systems such as our standing seam panels, the screws are completely concealed and protected by the roof surface. This metal roofing product gives standing seam panels very clean, aesthetically pleasing lines. This metal roofing product also exhibit the very best in weather resistance and durability since the fasteners are not exposed to the outside elements. We offer the three primary types of standing seam metal roofing products; screw flange, snap lock, and mechanically seamed. Each of these metal roofing product designs uses a slightly different method to secure the panel to the metal roof.
| Exposed Fastener |
MasterRib®

Most popular 5-rib panel for residential and post-frame applications
|
ValuRib

Economy version of MasterRib |
5V

Traditional five "V" profile used for generations |
Corrugated

Original wavy metal roofing profile |
R, PBR, IR-Panel

4-rib profile designed for industrial, commercial, and steel frame buildings |
|
| Standing Seam - Screw Flange |
Advantage-Lok®

1.375" (1-3/8") rib height, 16" coverage standing seam with integral screw flange |
Advantage-Lok II

1.00" rib height, 16" coverage standing seam with integral screw flange |
|
| Standing Seam - Snap Lock |
SL150

1.50" (1-1/2") rib height, 16" coverage snap lock standing seam |
SL175

1.75" (1-3/4") rib height
snap lock standing seam |
|
| Standing Seam - Mechanically Seamed |
ML150

1.50" (1-1/2") rib height
mechanical lock standing seam |
ML200

2.00" rib height
mechanical lock standing seam |
|
Flashing and Drip Edge
Underlayments / Insulation
Colors and Performance Grades