Repairing Rusted Metal Roof with pooling water Watch this video for Metal Roof Seam repair - https://www.youtube.com/watch?v=gVdrrfe_lBY See how to Patch Large Holes in A/C ductwork with Silicone Patch. This is a permanent solution to fix rusty holes on top of A/C units, ductwork, and metal roofs. See what the Silicone Patch looks like after it rained underwater. To buy Silicone Patch, go to https://bergstromm.com/ FTC Affiliate Disclaimer - I get commissions for purchases made through links in this post. 0:00 Quick Patch on Rusted hole 1:00 Grind area clean 1:46 Using Silicone Patch 2:12 Polyester Fleece 2:33 Second coat of Silicone Patch 3:40 Results after a week 4:24 Screws rust on metal roof 5:00 Using Silicone Patch over screws