Moss on Roof

Best Practices for Moss on Roofs

Moss on roofs can be an eyesore for a home. In addition to it being unattractive to your home’s aesthetic, I can also cause issues for your roof. Here at REI, we wanted to write a blog on how moss ends up growing on roofs and why it’s important to remove and prevent more moss from growing.

Why Moss thrives on Roofs

Moss thrives in areas that are damp and shady. This is why you will see areas of your roof that are under shade, they tend to have more moss. Another reason moss grows is due to the warmth of your home. The shingles are the last point of contact between the outside world and your home.

Potential Damage

Why moss is bad for roofs is due to how it grows. Moss expands and goes underneath your shingles which exposes your homes actual roofing to weather. When your shingles are undermined by moss, water can seep onto your roofing which can lead to it rotting or mold to grow. Additionally, when your home’s shingles are undermined by moss, high winds are more likely to pull shingles off your home.

Removal of Moss

Removing moss is been done with a chemical solution that you can create using some household items. There are also products you can buy at your local hardware store that can get the job done. A recipe we have found to work is as follows:

  • 8 ounces of Dish Soap plus 2 Gallons of Water

OR

  • 2 cups of Chlorine + 2 Gallons of Water

Prior to applying the solution, spray down the mossy area. Using a large spray bottle, apply the solution to the impacted area of your roof. Let the solution sit for an hour then gently scrub away the moss and hose off the roof with water. Be sure to not use a power washer as this can take off shingles which will require new shingles to be added later.

Prevention and Strategy

Preventing moss growth is the best way to ensure moss doesn’t continue to grow on your roof. Since moss thrives in more shady areas, investigate the areas of your roof that are most shadowed. After finding the areas that are most shadowed, understand which trees are providing this shade. Removing or trimming these trees to shed more light on your roof should decrease the mosses presence on your roof.

REI Roofing: Call with Questions regarding Moss Removal

REI Roofing has seen roofs with moss and can provide our customers with recommendations regarding how to manage moss on their roofs. If your roof has seen better days and needs some roofing upgrades, call the experts at REI Roofing a call today!