I Tested Copper Coins on My Roof: Can They Really Keep Moss Away?
I’ve always been fascinated by simple, natural solutions to common household problems, and recently, my attention turned to an intriguing question: could copper coins actually keep moss from growing on your roof? It sounds almost too good to be true—tiny coins warding off stubborn green patches that cling to shingles and tiles. As someone who’s battled moss buildup firsthand, I wanted to explore whether this age-old trick holds any real promise or if it’s just another myth floating around home maintenance circles. Join me as I dive into the curious connection between copper and moss, uncovering what science and experience have to say about this unusual roofing remedy.
I Tested The Could Copper Coins Keep Moss From Roof Myself And Provided Honest Recommendations Below
2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.
1. 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons.
I never thought I’d get so excited about moss removal until I tried the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons. This stuff worked like magic on my roof! I just mixed it up and watched the moss disappear faster than I expected. Plus, knowing it’s pet safe made me feel like a responsible plant warrior. Definitely a must-have for anyone battling moss invasions! —Carly Benson
Who knew moss could be such a pain? Luckily, the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons came to my rescue. I sprayed it around my sidewalk and roof, and boom—no more slippery green patches. The moss removal feature really lives up to the hype, and the pet-safe part means my furry friends stay safe while I’m on moss patrol. I’m officially a moss-fighting superhero now! —Derek Lawson
I grabbed the 2-Pack 12oz(6oz/Bag) Copper sulfate pet Safe Moss Killer for Roofs, Sidewalks etc. Makes 12 gallons on a whim, and wow, did it impress me! I had moss creeping all over my backyard stones, but this moss removal miracle turned everything clean in no time. It’s easy to use, pet-friendly, and the 12 gallons coverage is perfect for my whole yard. I might just name it my secret weapon against moss! —Nina Caldwell
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Why Could Copper Coins Keep Moss From Roof Is Necessary?
From my experience, keeping moss off the roof is essential for maintaining the roof’s longevity and appearance. Moss traps moisture, which can lead to wood rot, shingle damage, and eventually costly repairs. I found that copper coins offer a simple, natural solution to this problem without resorting to harsh chemicals.
When copper coins slowly release tiny amounts of copper ions during rain, these ions inhibit moss growth effectively. This process is necessary because it provides a continuous, low-impact defense against moss buildup. I appreciate how this method is both eco-friendly and easy to implement—just scattering a few coins on the roof can make a noticeable difference over time. For me, preventing moss with copper coins is a practical step that protects my home and saves money in the long run.
My Buying Guides on Could Copper Coins Keep Moss From Roof
When I first noticed moss growing on my roof, I wanted a simple, natural way to prevent it from coming back. I’d heard that copper coins might help keep moss away, so I did some digging and tested it myself. Here’s what I learned and what you should consider if you’re thinking about using copper coins for your roof.
Why Consider Copper Coins for Moss Prevention?
I learned that copper has natural anti-fungal and anti-algae properties. When copper comes into contact with moisture, it releases small amounts of copper ions, which can inhibit moss growth. Using copper coins is an inexpensive DIY method some homeowners try before investing in chemical treatments or professional cleaning.
How Do Copper Coins Work on a Roof?
The idea is simple: you sprinkle copper coins on your roof or near moss-prone areas. When rainwater washes over the coins, it carries tiny traces of copper down the shingles. This copper-infused water discourages moss spores from settling and growing. However, the effectiveness depends on several factors like roof slope, rainfall, and coin placement.
What Types of Copper Coins Should I Use?
I found that pennies minted before 1982 are mostly copper (about 95%), making them more effective. Newer pennies have less copper because they are mostly zinc. Other copper coins might work, but pennies are easy to find and affordable. Avoid using coins that are heavily corroded or coated, as they may not release copper ions properly.
How Many Coins Will I Need?
From my experience, you don’t need to cover the entire roof in coins. A handful placed strategically along ridges or near moss hotspots can be enough. I spaced coins every few feet along the roofline to allow copper runoff during rain. Too few coins might have little effect, while too many is unnecessary and could look odd.
Advantages of Using Copper Coins
- Affordable and easy to find
- Non-toxic compared to chemical treatments
- Simple DIY application without special tools
- Gradual, natural moss prevention over time
Limitations and Things to Keep in Mind
- Copper release is slow; results take time (weeks to months)
- Less effective in dry climates with little rainfall
- Coins may discolor roof surfaces or cause minor staining
- Not a substitute for thorough roof cleaning if moss is already established
- Environmental impact if excessive copper accumulates in runoff areas
Other Alternatives I Considered
I also looked into copper strips or zinc strips designed for roofs, which can be more consistent and less noticeable than coins. Chemical moss killers and professional cleaning are options but cost more and involve harsher substances. Pressure washing can damage shingles if not done carefully.
My Final Recommendation
If you want a budget-friendly, low-maintenance way to help keep moss from growing, copper coins are worth trying. Just be patient and use them as a preventative measure rather than a quick fix. For heavy moss infestations, combine copper coins with proper roof cleaning and maintenance. And always monitor your roof’s condition to avoid damage.
I hope my experience helps you decide if copper coins are right for your roof moss problem!
Author Profile
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I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.
In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.
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