Tracking Down Roofing Issues

Removing Moss From Asphalt And Metal Roofing

Moss growth not only looks bad on the roof of your home, but it's also stealing valuable years off of the life of the roofing material. Here, you'll learn the best ways to remove moss from different types of roofing materials and how to prevent the regrowth.

Removing Moss from Shingled Roofing

Shingles must be handled with care. If you are too rough on the shingles while you're trying to remove the moss, you will rip and ruin the shingles that you're trying to save.

The best way to remove the moss growing on your shingled roof is to use herbicide cleaning solutions. One thing to remember is that the cleaning solution will kill any plants that are growing in the ground below. Because of this, you'll need to cover all of the plants below, along with as much of the ground as possible. When you're done with the cleaning process, you'll need to remove the covers and spray the area very, very well to wash away the solution and dilute it enough in the ground to prevent damage to the plants.

Now, to remove the moss, you'll need the cleaning solution, a ladder, a pump sprayer, hose, soft-bristle brush, and a cloudy day. Spray the solution generously onto the mossy areas. Let it sit for a half hour or so. If the moss is thick, re-saturate it and let it sit for another half hour or so. Scrub the moss off of the roofing with the brush. Rinse the roofing with the hose – make sure only to spray downwards so that you don't flip the shingles up as you rinse.

Removing Moss from Metal Roofing

Metal roofing is much easier to remove the moss from. You can use the same cleaning method as the shingled roof, or you can use a pressure washer to clean the roofing. As you pressure wash the roofing, make sure to follow the ribs straight down and be especially careful around the J-seams. Water can easily get between the J-seams and cause water to leak under the roofing.

Prevent Future Growth

To prevent future growth, your roofing needs a little more sun. If it is shaded, trim back branches to allow the sun to dry the surface as quickly as possible. Keep the roofing free of debris. If the moss doesn't have any dirt or debris to root in, it won't thrive on your roof. Talk with your local roof company to learn more about removing the moss from your roofing and what you need to do to prevent it from re-growing.