How To Remove Moss From Your Roofs | B&M Roofing

Leaves flushing out tree canopies should be the only greenery in the sky. If your roof is covered in mossy foliage, it’s time to clean it. Moss thrives in regions that aren’t exposed to the sun, so it can grow quickly on tree-shaded and north-facing rooftops. Moss can swiftly upholster roof surfaces by filling in spaces between shingles and tiles, as well as reaching beneath and raising up roofing materials. Rainwater and other moisture can infiltrate into a roof’s structure, causing corrosion and damage.

Closeup of old slate roof covered with green moss after the rain. Green moss texture, natural background


A moss-covered green roof may make you feel as if you’ve stepped into a fairy tale, replete with a charming little woodcutter’s hut. Moss, on the other hand, is more of a nightmare than a fantasy in the actual world. If left untreated, the clumpy foliage can destroy practically any roofing material—most typically wood and asphalt, but also metal, clay, and concrete—shortening its lifespan dramatically.


Remove All Moss From Your Roof Shingles With a Hose and a Brush

Place a ladder carefully near the mossy area, and put on slip-resistant shoes, old clothes, rubber gloves, and eye protection. (You might also want to use a safety rope to keep yourself safe.)

Using ordinary water, hose down the area at a downward angle. Then scrub the moss off the roof using a long-handled soft-bristle scrub brush, scrubbing from the top down to prevent lifting tiles. To avoid ripping, splitting, or breaking the shingles, rub gently—don’t scrape, scour, or pound on the roof—and work in small sections at a time.


To Remove The Moss, Use a Store-Bought or Homemade Cleaning Solution

There are a range of commercial cleaning treatments as well as homemade roof moss killer remedies that will get the job done if your moss problem demands more than a basic scrub. Wait until the following cloudy day to take your cleanser to the roof—you don’t want the solution to evaporate too rapidly. Remember that both commercial and DIY spray cleaners can harm sensitive plants and discolor siding, decks, or pathways, so cover your work area with plastic sheeting before you begin.


Install Zinc or Copper on The Roof to Prevent Further Moss Growth

Install strips of zinc- or copper-coated sheet metal slightly below the top ridge on both sides of the roof to prevent moss from returning. Copper is more harmful to moss and algae than zinc, but zinc is cheaper. Sheet metal is available in rolls that may be cut into two- to four-inch strips. Roofing nails or screws with a rubber washer are used to secure the strips to the roof.

You should also prune any tree limbs that dangle over the roof, as natural sunlight is a great moss deterrent.

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