Sunday, July 14, 2024
HomeMossHow Do You Get Rid Of Moss On Your Roof

How Do You Get Rid Of Moss On Your Roof

How To Apply Wet & Forget Outdoor And Zap Roof Moss

How to get rid of Moss on Roof

Wet & Forget Outdoor makes getting rid of roof moss a piece of cake. To defeat roof moss once and for all:

  • Mix 1 part Wet & Forget Outdoor with 5 parts water in a pump-up garden sprayer.
  • Spray the diluted Wet & Forget Outdoor on the moss at a time that allows for 4 to 5 hours of drying time before the chance of rain. Be sure to saturate the moss thoroughly to allow the solution to reach the mosss root-like structures.
  • Walk away, and let Wet & Forget Outdoor do the work for you!
  • Re-apply once a year, or at the first sign of re-growth.
  • *Be very careful walking on your roof. Moss can be slippery, as can wet shingles. If you dont feel safe on your roof, call in a professional.

    To keep your roof looking good and protecting your home for years to come,inspect it regularly, clean and check the gutters and downspouts at least twice a year, and keep it free of moss and other growths with Wet & Forget Outdoor. Youll save yourself lots of time, money and headaches!

    Have you tried Wet & Forget? Wed love to hear from you! Leave a comment at the bottom of this blog post, to send us feedback. Make sure to visit and tell us what you think!

    First Off What Is Moss

    Mosses are a collection of tiny non-vascular flowerless plants that thrive in damp or shady conditions. Unbeknownst to many, there are seven classes and 12,000 known varieties of moss worldwide. It’s non-vascular, which means that moss doesn’t have roots like other plants do, and instead absorbs water from its appendages or spores. Because it doesn’t have the root structure to grow upward, it’s a plant that grows low and spreads wide on flat surfaces.

    When moss spreads, it can envelop the surface and create a somewhat rustic look for cottages or cabins, which is why some people choose to let moss grow on their roofs. However, the consequences of allowing moss to grow wild are often not worth it.

    How To Remove Moss From Roof Tiles

    Does your roof look far too green for your liking? Use the following methods, tools, and materials to eradicate moss from your roof.

    The only greenery you should be able to see near your rooftop is the leaves growing off branches from surrounding trees. If you have moss growing on your roof, then its time to do something about it.

    If you have moss growing on your roof, theres a high chance you have a north facing roof. A north facing roof usually has little sunlight, which enables moss to buildup on the roof. Moss can grow quite quickly, and it will grow in between roof tiles, filling in the voids and lifting up roof tiles and slates.

    Moss growing under roof slate and tiles can push the slate out of position allowing rainwater to seep into the roof structure. When rain finds its way into the roofing structure thats when decay and rot sets in.

    If you want to clean moss off a roof yourself, you will have to plan how you are going to kill the moss and remove it effectively. You will need to treat the roof to stop the moss from growing back.

    Its recommended anyone cleaning moss off a roof should do it on a cloudy day. When applying roof cleaning products onto a roof on a hot sunny day, it will quickly evaporate, and you wont get the desired result.

    Most roof cleaning products require at least 20 minutes for it to absorb into the moss. However, there is more than one way to remove moss from your roof tiles.

    Roof Moss Treatments

    How to Clean Moss from the Roof

    You May Like: How To Build A Roof Over My Patio

    Why Moss Grows In Lawns

    This hardy little plant is an opportunistic plant in such a way that it doesnt compete with grass for space or even kill other plants to invade the property rather, it will simply just exist in any spot where nothing is growing.

    If your lawn is full of something other than grass, there is something wrong within it more than meets the eye. Therefore, the key to killing it and ensuring it wont come back for good is to deal with the deeper issues with your lawn.

    Since moss is desperate enough to claim any space that doesnt have anything growing in it, you must find out the reason what kills your grass or why it is not growing healthily as it should be.

    Reapply After Six Weeks

    Is Moss On My Roof A Problem?

    Reapply the cleaner as needed, to eliminate any moss thats regrown or hung on from the previous application. By creating a yearly moss treatment plan, you’ll help add years to the life of your roof.

    As you can see, preparation and safety are key when treating and removing moss on your roof. By following these steps and using a few materials and tools, you’ll preserve the life of your roof, beautify your home, and help to protect against leaks.

    Once you’ve finished removing the moss, you’ll likely want to clean your gutters. Stay tuned for our Dunn DIY gutter cleaning tutorialcoming in the next few weeks.

    Also Check: How To Raise A Roof On A House

    Does A Roof With Moss Need To Be Replaced

    If you notice moss or algae on your roof, dont panic. The presence of moss doesnt always mean youre destined for a whole new roof, nor does it mean your home has suffered water or moisture damage.

    Moss tends to form in areas where it is shielded from the sun. If sections of your roof are under heavy tree cover, these are prime spots for moss to thrive. And if you live in a damp climate that sees a lot of rain, chances are you will notice telltale signs of algae or moss forming on your roof at some point in your homes lifespan.

    The presence of moss doesnt always mean that your roof has sustained damage, especially if you catch it early. Like leaves in your gutters, moss is only a problem if you allow it to grow unchecked.

    How To Kill Roof Moss

    It may seem charming on quaint cottages, but roof moss can cause extensive damage to your roof and home. Moss can ruin shingles, degrade the underlying surface and threaten your home’s structural integrity. It can even affect your family’s health. By being proactive with moss treatment, your can extend your roof’s life and protect your family.

    With these simple steps, you can kill roof moss and avoid costly home repairs:

    Recommended Reading: How Many Boxes Of Roofing Nails Per Square

    How To Remove Moss From A Roof With Detergent

    Related Articles

    A mossy roof is more than an eyesore, its a threat to the structure of your roof and your house. Killing moss with vinegar is one strategy for removing it from your roof, but there are others. You should proceed with caution with any such repair due to the slippery nature of moss and the inherent danger of working on a roof.

    Natural Moss Killer For Lawns

    How To Remove Roof Moss – And Keep It Away

    Many commercial lawn moss killers contain a lot of chemicals youve probably never heard of, so with this homemade weed killer recipe, youll know everything youre putting on your lawn.

    • 1 quart of warm water

    Mix the baking soda and water in a spray bottle and shake until the solution is well-mixed. Walk around, spraying any moss patches with your natural moss killer for lawns. You want to soak the moss, so apply enough cover it thoroughly.

    It is best to work with nature for optimal results with this natural moss killer for lawns, so do this on a warm, sunny day. The heat of the sun will help to dry out the moss quickly. Repeat as needed until the moss is dead.

    Also Check: What Voids A Roof Warranty

    How To Prevent Moss From Growing On Your Roof

    Prevention is always the best weapon, but unfortunately, hindsight is 20/20. If the moss on your roof has already grown into a small lawn, these tips are still helpful in ensuring you prevent any regrowth.

    • If there are trees that overlook your house, consider trimming the branches that hover over your roof to prevent moss from growing.

    • Make sure you do routine roof cleaning. To maintain your overall roof health, clean your roof 1-2 times a year. It will ensure your roof is clear of debris leaves and sticks. Clean Break Home Services offers complete professional roof cleaning in Vancouver to help lengthen the lifespan of your roof.

    • Clean your gutters. Debris can clog your gutters and begin to mold. This moist environment can further speed up the development of moss as well.

    • Use zinc strips to prevent moss by nailing it along the peak of your roof. After a downfall of rain, the zinc gets released onto your roof and inhibits moss from growing.

    Bleach Soap And Water

    Usebleach soap and water to remove moss on the roof. Fill up 75% bleach and 6 to 8particles of dish washing soap in a pump sprayer. Shake it well to mix it up. Sprayit on the areas that have been affected with moss on the roof. Wait for a shortperiod of time for rain to wash it off then rinse the roof with a hose.

    Based on the discussed methods above, we finally understand that we can remove moss from the roof naturally. It is a win-win situation for both the environment and living things in the ecosystem and the roof without moss. The environment and living things will not be affected by cleaning the roof and the roof will remain clean without moss. Other than removing moss on the roof, prevent its growth.


  • Dietert, M. . Studies on the Gametophyte Nutrition of theCosmopolitan Species Funaria hygrometrica and Weissia controversa. TheBryologist, 82, 417-431. doi:10.2307/3242217
  • Armentano,T., & Caponetti, J. . The Effect of pH on the Growth of Protonemataof Tetraplodon mnioides and Funaria hygrometrica. The Bryologist, 75,147-153. doi:10.2307/3241442
    • TAGS

    Also Check: How To File A Roof Claim

    Why Is Moss Harmful On A Roof

    You might not think that having moss on your roof would constitute a danger to your home, but the ability of moss to hold onto moisture is where the danger lies. A roof made permanently damp from moss may start to rot over time, and your entire roof might eventually weaken to the point that it becomes a danger to your family.

    Regular rainfall can keep the moss wet and make it impossible for the moisture on your roof to evaporate. Your roof is designed to dry in a reasonable amount of time after heavy rain, but moss can make that natural drying process impossible. Moss may retain moisture on your roof even when it doesnt rain, and its simply a humid week.

    How To Keep Moss From Growing On Your Roof

    How to Remove Moss From Your Roof

    If youve noticed moss growing on your roof, you may not be very alarmed. Its just a harmless plant, right?

    While a little bit of moss may not cause major harm immediately, untreated moss growth can do serious damage to a roof eventually. Unfortunately, from asphalt shingle roofs to metal roofs, no type of roof is immune to the problems moss growth can cause.

    The good news is that a little bit of elbow grease and know-how can help you control moss. Check out our guide to learn how to keep moss from growing on your roof and how to remove it.

    You May Like: Where To Buy Roof Top Tents

    Use A Pressure Washer

    A pressure washer isnt a great way to prevent moss growth, but it is an excellent solution for killing moss. It is perfect for moss with a shallow root, so areas with a couple of inches on a hard surfacesuch as sidewalks, pavers, or concrete.

    This is not the best option for roofs or lawns, as the pressure that loosens the moss can also break off other materials that you want to stay in place. Pressure washers can come in handy around the house and work well with vinyl siding wash, too.

    Washing Powder To Kill Moss

    A widely believed approach is that sprinkling common washing detergent powder across the moss will kill it. Then, you can just spray or scrub the dead moss off the shingles to save on expensive professional services.

    Experts from Roof Life of Oregon confirm that it is technically true that commonly available detergent will kill moss. In addition, they say, you can physically remove the treated dead moss by spraying it with a high-pressure hose or scrubbing and scraping, although this method is more complicated and expensive than it seems. It takes a surprising amount of detergent to kill moss.

    In addition, the cost of a pressure washer or other high-pressure hose adds to the expense of such a project. Furthermore, misuse of such a powerful stream of water can lead to roof damage that would be quite costly to repair.

    Read Also: How Much To Install A New Roof

    What If The Moss Appears Dead

    If the weather has been consistently dry, moss may appear to be dead. However, some species of moss can stay alive when dried out for months. All it will take is one rain for it to recover and continue growing. If your moss has dried out, take the opportunity to have a roofer remove the moss from the roof.

    Can A Pressure Washer Be Used To Remove Moss

    How to remove moss from a roof 🙂

    Your roofers should remove all shingles from your old roof, or use a pressure washer to remove larger patches of moss and then install a new roof. It is recommended that you only use a pressure washer as you no longer have to worry about the condition of your old roof. The new one provides the protection your home needs.

    Also Check: How Much To Repair A Trailer Roof

    Install Zinc Or Copper Strips

    Preventing moss from the start is the best way to avoid dealing with its consequences. Many homeowners attest to the effectiveness of zinc strips. When it rains, water rolls over the metal and washes the roof, killing moss in its path. These strips inhibit moss from growing back. Theyre also great at preventing the appearance of black stains.

    In a few years, the strips lose their effectiveness so youll need to buy and install new ones. Copper strips also make good alternatives and can last longer than zinc.

    Premade strips are simpler to install and also look cleaner on your roof. You can purchase these strips online or at a home improvement store.

    It Can Cause Water Damage

    Even without raised shingles, it can cause water damage to your roof.

    If you have ever touched live moss then you have certainly felt how wet it is. It retains moisture to survive, but by doing so, it keeps your roof in a constant state of being wet.

    It also affects the drainage. Roofs are designed to run water towards the ground. Clumps of mossy growth will disrupt the natural drainage pattern. This can result in water pooling on the surface and soaking into your house.

    You May Like: What Is The Best Paint For Metal Roofs

    How Do You Kill Moss On Concrete

    For concrete, tile and other hard surfaces, spray mossy areas with boiling water. Then use a brush dipped in a solution of 1 part vinegar and 3 parts water to clean it. The boiling water kills the foam, while the vinegar removes the organic matter and dirt needed to help the foam adhere to hard surfaces.

    Understand Roof Moss And Damage


    Cracks and crevices between roof shingles provide ideal spots for moss to grow and spread. These simple plants flourish wherever moisture collects, particularly on north-facing or tree-shaded roofs. Moss doesn’t need much light or nutrition, but moisture is crucial. In humid areas prone to foggy mornings and moderate winters, a slight dusting of moss can escalate to a serious roof problem.

    Left unchecked, roof moss grows into a thick, resilient layer. Established moss acts like a sponge, soaking in moisture from below and above, and keeping your roof constantly moist. Moss creeps under shingle edges as it spreads, prying shingles loose and letting damaging moisture reach the layers below. Damage progresses from shingles to rotten underlayments and damaged framework. Health-threatening mold can develop and travel down walls to affect living areas as well.

    Untreated moss gains a foothold in crevices and cracks as it spreads.

    Read Also: What Is An Ice And Water Shield On A Roof

    Can Moss Damage Your Roof

    So whats the big deal? A little moss cant cause any damage, right? Wrong.

    A small amount of moss is harmless, but if its left untreated, it can cause significant damage and degrade the structural integrity of your roof.

    As I mentioned before, moss typically grows in the cracks between each shingle. As it grows thicker, it lifts and loosens shingles and allows water to leak through.

    Also, moss absorbs water when it rains and retains it for long periods, which can lead to mold, bacteria, and the decay of the roofs framing over time.

    Should You Remove Moss

    When you get a roof replacement, you may want to have your roofers install the new roof over top of the old. In certain circumstances, this can help you save money. However, if your old roof has moss growth, can you still use this method?

    You may need to deal with the moss before the full roof replacement. Your roofers will need to remove all the shingles on your old roof, or they may need to remove the largest chunks of moss with a pressure washer and then apply the new roof. It is only advisable to use a pressure washer because you no longer need to worry about the condition of the old roof. The new one will offer the protection your home needs.

    You May Like: How Often To Get Roof Replaced


    Most Popular