Union Corrugating Master Rib Panel
Updated August 11, 2026
| Lot number | 285b |
| Auction | Overstock Product Liquidation- 08/13 |
| Date | August 13, 2026 at 6:00 PM EDT |
| Auction house | ATX Auctions Knoxville |
| Location | Knoxville, Tennessee |
Functional?: Unable to Test UPC: 30760885025192 Model: GAMR290800 Condition: New - Packaging flawed Damaged?: No In Packaging?: Yes Missing Parts?: Unknown Brand: Union Corrugating MasterRib is Union's most popular metal roofing panel and is an industry leader in strength and durability. This versatile metal roofing panel features classic looks and is used in a wide range of roofing and sidewall applications, including residential, commercial, post-frame and agricultural. MasterRib is designed with extra wide ribs to increase strength and ease handling and installation. Another unique feature of the MasterRib panel is the extra large siphoning channel under the under-lap rib which provides extra leak resistance in extreme wind and rain conditions. Union's paint colors have energy star ratings and can reflect up to 70% of the sun's energy that can reduce attic temperatures and cooling costs. 29 Gauge MasterRib Galvalume roof panel Extra wide ribs 3/4-In high for increased strength Panel has a 36-In wide coverage Oversized anti-siphoning channel for extra leak-resistance Most popular residential panel profile Exposed fastener design Meets standards for UL 2218 impact resistance Can be installed over shingles 3:12 minimum recommended roof pitch Color/Finish Family: Silver Manufacturer Color/Finish: Unpainted Series Name: Master Rib Length (Feet): 8 Panel Size (Sq.
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