Performance Grades - MCA Certified Metal Roofing

Union’s products are available in several grades designed to suit your desired level of performance. Our premium grades are Metal Construction Association (MCA) certified for use on residential and light commercial applications. The MCA set industry guidelines for quality and durability in response to problems with manufacturers selling substandard products that performed poorly over time. Union is one of only a handful of manufacturers that offer certified steel metal roofing systems. See the MCA’s website at www.metalconstruction.org for more information.

Our 300 and 500 series steel metal roofing systems use high strength steel that’s protected by an aluminum, zinc, and silicon anti-corrosion coating, commercially known as Galvalume®. The corrosion resistance of our steel metal roofing system is so outstanding, even our unpainted Galvalume® panels carry a 25 year limited warranty. On top of our premium base metals, we offer several state-of-the-art multi-layer paint systems that offer years of fade and chalk resistance. Below you’ll find descriptions for our various steel metal roofing systems.

Paint / Metal System	Paint Limited Warranty*	Metal Limited Warranty*	Base Metal Description	Paint Description	MCA Certified	Energy Star Certified Colors Available**
	Lifetime	Lifetime	Premium steel with an aluminum, zinc, and silicon anti-corrosion coating (Galvalume®)	Premium siliconized modified polyester (SMP) paint system with enhanced UV protection. Offers outstanding long-term fade and chalk resistance.	Yes	Yes
	45 Yr	25 Yr	Premium steel with an aluminum, zinc, and silicon anti-corrosion coating (Galvalume®)	Premium siliconized modified polyester (SMP) paint system with enhanced UV protection. Offers outstanding long-term fade and chalk resistance.	Yes	Yes
	30 Yr	25 Yr	Premium steel with an aluminum, zinc, and silicon anti-corrosion coating (Galvalume®)	PVDF (Kynar 500® or Hylar 5000®) paint system that offers the highest level of long-term fade and chalk resistance.	Yes	Yes
	20 Yr	0 Yr	Steel with a zinc anti-corrosion coating (Galvanized)	Entry level paint system. Not recommended for residential applications.	No	No
Unpainted Galvalume ®	N/A	25 Yr	Premium steel with an aluminum, zinc, and silicon anti-corrosion coating. Has a clear Acrylic top-coat.	N/A	Yes	Yes
Unpainted Galvanized	N/A	0 Yr	Steel with a zinc anti-corrosion coating (Galvanized)	N/A	No	No

* Contact Union Corrugating for a copy of the Limited Warranty

** Note: Not all colors are Energy Star certified. Please see the color charts for the specific Series to confirm if the color is certified.