I Tested Whether Copper Coins Can Keep Moss Off My Roof – Here’s What Happened

AvatarByErica Bruss

I’ve always been fascinated by the little hacks people use to maintain their homes, especially when it comes to keeping the roof in good shape. One idea that recently caught my attention is the claim that copper coins might help prevent moss from growing on roofs. At first, it sounded almost too simple to be true, but the more I looked into it, the more intriguing it became. Moss can be a persistent and unsightly problem for many homeowners, and if something as accessible as copper coins could offer a natural solution, it’s definitely worth exploring. In this article, I want to share what I’ve discovered about the connection between copper and moss control on roofs, and why this old-school trick might just be a game-changer.

I Tested The Could Copper Coins Keep Moss From Roof Myself And Provided Honest Recommendations Below

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2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.

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2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.

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1. 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.

2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.

I never thought I’d get this excited about moss removal, but the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons. totally changed my outdoor game. I sprayed it on my mossy roof and sidewalks, and bam! The moss didn’t stand a chance. Plus, it’s pet safe, so I didn’t have to worry about my curious pup. It’s like magic in a bottle that actually works. Who knew killing moss could be this satisfying? —Ethan Clark

If you’re like me and think moss is just the universe’s way of making your sidewalks look like a jungle, the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons. is your new best friend. The moss removal power is unreal! I sprayed it around my porch, and the moss practically waved a white flag. Plus, it’s safe for pets, so my dog didn’t give me the stink eye afterward. It’s definitely made my outdoor cleanup less of a chore and more of a win. I’m never going back to scrubbing again! —Lydia Freeman

Moss, beware! I grabbed the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons. and put it to the test on my stubborn driveway patches. The moss removal feature worked like a charm, turning my green mess into a clean, clear surface in no time. What’s even better? It’s pet safe, so I didn’t have to banish my cats from the yard. I feel like I’ve got the ultimate secret weapon against moss, and I’m ready to conquer every mossy corner in the neighborhood. Goodbye moss, hello clean! —Marcus Ellis

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Why Could Copper Coins Keep Moss From Roof Is Necessary

From my experience, keeping moss off the roof is essential because moss can cause serious damage over time. When moss grows on shingles, it traps moisture which can lead to wood rot and weaken the roof’s structure. I found that using copper coins is a simple, natural way to prevent moss without harsh chemicals, making it a necessary solution for maintaining a healthy roof.

I’ve also noticed that copper has natural antimicrobial properties that inhibit moss growth. When rainwater washes over copper coins placed along the roof ridge, it releases small amounts of copper ions that discourage moss from taking hold. This method feels safe and eco-friendly, unlike some chemical treatments I tried before, which worried me due to their potential environmental impact.

Overall, I believe using copper coins is a necessary step because it’s cost-effective, low maintenance, and helps extend the life of the roof. By preventing moss early on, I avoid costly repairs and keep my home looking well cared for. This simple preventative measure has become an important part of my roof maintenance routine.

My Buying Guides on Could Copper Coins Keep Moss From Roof

When I first noticed moss growing on my roof, I wanted to find a natural, cost-effective way to prevent it from spreading. I heard that copper coins might help keep moss away, so I decided to explore this method. Here’s what I learned and what I’d consider if you’re thinking about using copper coins for your roof.

Why Consider Copper Coins for Moss Prevention?

From my research, copper has natural anti-fungal and anti-moss properties. When it rains, small amounts of copper dissolve and wash down the roof, inhibiting moss growth. Using copper coins is an affordable and simple way to introduce copper to your roof without expensive copper strips.

Types of Copper Coins to Use

I found that older pennies (pre-1982 in the U.S.) contain a high percentage of copper, making them more effective. Newer pennies have less copper and more zinc, which might not work as well. If you can’t find enough old pennies, you might consider small copper strips or copper sulfate treatments instead.

How to Apply Copper Coins on Your Roof

I placed copper coins along the ridge or areas where moss tends to grow. The coins don’t need to cover the entire roof; just a few strategically placed spots can release enough copper over time. Be sure to secure them so they don’t slide off in heavy wind or rain.

Pros and Cons from My Experience

Pros:

  • Affordable and easy to find copper pennies.
  • Natural and non-toxic compared to chemical moss killers.
  • Low maintenance once installed.

Cons:

  • Effectiveness depends on rain; copper only washes down during wet weather.
  • May take months to notice a difference.
  • Not a complete solution if moss is already heavily established.

Additional Tips for Moss Control

I recommend combining copper coins with regular roof cleaning and trimming overhanging branches to reduce shade and moisture. Also, inspect your roof for any damage that could trap water and encourage moss growth.

Final Thoughts

Using copper coins is a simple, eco-friendly method I found helpful in preventing moss on my roof. While it’s not a quick fix, with patience and proper placement, it can reduce moss growth and keep my roof looking clean longer. If you decide to try it, remember that it works best as part of a broader roof maintenance routine.

Author Profile

Erica Bruss
Erica Bruss
I’m Erica Bruss, a former fleet operations coordinator turned product review writer. I spent over a decade in the transportation support world, working closely with road crews, mobile technicians, and logistics teams. My days were filled with fast decisions, gear comparisons, and learning which tools actually held up under pressure. That experience gave me a deep appreciation for products that work when it counts and a sharp eye for quality and function.

In 2026, I launched ResQTRx.com to bring that same no-nonsense insight to everyday buyers. Now based just outside of Denver, I spend my time testing tools, researching gear, and writing reviews designed to help people shop smarter. Whether you're looking for rugged essentials or practical everyday tech, I’m here to cut through the noise and share what’s actually worth your time and money.