Titebond WeatherMaster Metal Roof Sealant, Gray – Premium Polymer Caulk for Aluminum, Copper, Galvanized Steel & Coated Metals, UV-Resistant – 62431, 9.5 Oz. Cartridge

I purchased & used this Excellent leakproof Caulk on my 5 year old Metal Roofs. Exactly Same Caulking Roofing Contractor Used . So, after installation one year later, and then Once a year afterwards as to Inspect and re-seal( if necessary.)For all vents, seams, chimney flashing ,etc keeps my roof in good shape on both Buildings. One is a 2000 'sq. Hangar. & House is 3600'sq. Ordered 6 Tubes & Used only 4 Tubes with a bit left over in the last tube. I always keep a few tubes on hand living in South Florida. This product is a tough as they come and holds up very well. Preventative maint is the key which keeps us Happy and dry.

I like it. Works perfectly. Easy to install, easy to use.

This is a very good product. Sticky but runs a bit.

So I have older 24x48-ft building tin roof so it seals well helping prevent leaks. It's pretty sticky. I just went with a gray to match the tin roof. Seems to be pretty durable as we've been getting a lot of rain here lately

Used on R panel roof. A little thin and tends to run instead of filling minor gaps

Works great so far. Two weeks since using.

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I used this on my shed when I put on a metal roof about a year ago. It is holding up well.

I repaired rusted leaking sections around some of the screws on my metal barn roof. Works perfectly using small (6 x 6 inch) metal patches (cut from metal roofing sheets of the same profile) and placed over the top of the corroded (and cleaned) areas. Just run a bead of sealant inside the outside edges of the patched area before securing the patch in place.