Metal Roofing Systems

Residential and Commercial 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 metal roof surface after installation. These exposed fastener metal roofing systems are economical, have been in service for decades, and are extremely popular in a wide variety of metal roofing applications. In concealed fastener metal roofing systems such as our standing seam panels, the screws are completely concealed and protected by the steel roof surface. This metal roofing system gives standing seam panels very clean, aesthetically pleasing lines. The metal roofing system also exhibits the very best in weather resistance and durability since the metal roof fasteners are not exposed to the outside elements. We offer the three primary types of standing seam metal roofing systems; screw flange, snap lock, and mechanically seamed. Each of these metal roofing system 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
Stone Coated Metal Shingles

Flashing and Drip Edge

Aluminum Roll Flashing	Galvanized Roll Flashing	Vinyl Roll Flashing
Copper Roll Flashing	Aluminum Drip Edge	Galvanized Drip Edge

Underlayments / Insulation

REPEL™ Synthetic Underlayment

Colors and Performance Grades

Performance Charts