Painting The Barn Roofs

Husband and son have painted the barn roofs, over replacing the metal. Using a special elastomeric paint on the pole barn roof. Paint is supposed ro flow around roof nails, fill crevices and prevent leaking.

Barn is about 38 years old, almost no paint left on the roof metal. We got some estimates about a new metal roof and the cost was astronomical!! Roofers offered alternatives like “sealing” the roof, but also pretty expensive. Husband checked out products and decided on this special paint, got son to come help. Barn is not huge, though one side has been added onto, so there is more roof there. They got one coat on half the roof last week, and also painted half the small barn roof the same day. Paints both dried very fast in the sunshine, did a great job of coverage. Painting white over grey metal left a few shadows, but husband had planned on doing two coats anyway.

The little barn has silver corrugated metal roofing, needed a different kind of paint. Husband had found some older zinc paint on sale, a Rustoleum product. He did comment on how HEAVY each gallon was, could not carry two cans because the bail handle cut right into you even with gloves! Being older, the paint took a lot of stirring with the mixing stick on the electric drill. Son said each can was almost 15 minutes, getting all the zinc particles well stirred in. Paint did make the rollers heavy too, but it covered the rust well, no bleed thru. Barn is smaller, paint was drying as quick as they rolled it on. I never thought the roof got that hot! Fuzzy rollers covered the waves of corrugated metal nicely, not much in extra roller work. It looks like new metal! Only one side was rusty, did not need to paint the other side, so getting done went fast . No need for a second coat on that.

Today they got the second coat on the painted side and first coat on the other half of the roof. I can’t believe how nice things look! Not sure how quick they can get the second coat on that other half. May rain tomorrow. But husband wants all the painting finished so he can replace the roof cap panels with polycarbonate panels. The old fiberglass is very dingy and brittle now. He tells me the new panels will brighten things considerably! Won’t have to turn on the lights! They sure are clear stacked, waiting to be installed.

It sure feels good having things done before winter. We had been talking roof replacement for a long time, but getting actual estimate costs was kind of shocking pricewise. Even if the new kind of paint doesn’t last 15 years, it is much less expensive than a new roof. So we could paint it again!

Perhaps others might want to consider painting their sheet metal roof instead of replacing the metal. The pole barn had no rust, just did not have much paint either. Wind comes from that side, dusty wind is perhaps “scouring” off paint while preventing rust too. It is kind of a blinding white with the sun on it now! Looks really nice. Husband says he hopes he can lift his arms tomorrow after all that long-handled roller work! Ha ha So glad son came to help, they had a great time talking and working together.

Me? I was out weed spraying pastures. Guess I used a bit too much Dawn soap, though it was not much. The tank was full of bubbles when it quit spraying! Ha ha

Painting metal roofs also will help insulate them somewhat in the summers.
Here you can tell the difference after painting, in one barn easily 15+ degrees less in the summer than before, same outside temperature.

We used one coat of a Baer Home Depot oil based enamel paint for the kind of metal barn we have and it does go on thick and it is expensive, but worth it.
We went with an off white, almost very light tan looking.

What a difference a little paint makes.
All looks so spiffy with new paint, does it.

I too hope DH arms don’t fall off.
It is a bear of a job by hand, if you don’t spray it.

I had my barn roofs painted this summer – looks so nice driving down the road and seeing them bright and fresh. I just went with paint, nothing special, though that zinc product sounds like a good idea.

We went with the special elastomeric paint because rubber washers under many of the nails has died leaving gaps, that were letting in some water. Paint is “runny” to fill gaps and stop drips. Seals it all closed when dry.

Nice to hear of the sun reflection Bluey mentions for keeping interiors cooler.

I DO like how bright the white roof is from the road! Small barn is behind it, not so visible until you are quite close. Does look like new corrugated now!

Just feels so good getting more jobs done, off the list. The weeds I sprayed are already wilting!! I am so pleased to see that in action.

Metal roofs are made to last 100 years. We repaint ours periodically. It is pretty cheap maintenance considering some of the other projects we have to do.

How long does the paint last until it starts chipping or wearing? When you repaint, is it to brighten the appearance of the roof or is it because the paint is failing, wearing out, washing off, or flaking?