Moss out for roofs plant safety12/29/2023 SNUGS has been treating and removing moss for many years and only uses the best treatments. If you are unsure about the regulations in your location, you can always check in with your local government or, better yet, call in the pros! One thing to consider with liquid treatments is that certain communities may have restrictions about how to dispose of treatment runoff, and don’t allow it to drain into storm drains. Also, because the treatment is applied through a hose, this really limits how much you’ll need to walk on the roof, making it a safer option. It is much easier to apply liquid treatments evenly across your roof for full coverage. This also means that once the treatment is applied, you don’t need to worry about the wind blowing away your effort or worry about white streaks. Liquid options don’t rely on the rain to function correctly, meaning that it can be applied all year round. Liquid treatments eliminate a lot of the downsides associated with granular treatments. Granular Treatments have also been known to leave white streaks due to the powder not fully dissolving. In order to properly apply granular treatments, you’ll need to walk across your entire roof, increasing the risk of injury from an accident. This can end up leaving spots that have little to no treatment applied. Another downside of granular treatments is that they can be difficult to apply evenly. This means a couple things first, this treatment option is highly seasonal and can only be applied in times of consistent rain, and second, because it takes time for the treatment to dissolve, you run the risk of the treatment being blown away by wind before it ever actually gets dissolved, making the effort useless. There are a few downsides to using granular treatments, the first being that it requires rain for the treatment to work effectively. This option generally takes about a week to observe results. When the rain falls, it dissolves the powder and runs down the roof to the eaves. This option requires rain to work properly. They are applied by spreading powder in lines along the roof in regular spacings of two to four feet. If left unchecked, it can cause serious harm to the structural integrity of the building.Ī popular choice when treating roofs for moss is a granular treatment. Moss left on a roof through winter will amplify the freeze/ thaw effect, and can be quickly leave roofs vulnerable to weathering, deterioration, leaks and water damage. One of the biggest threats to your roof is the changing of the seasons. A buildup of moss can create dams on your roof, increasing the likelihood of leaks. If moss were to get under a shingle, the shingle would be lifted which would allow water to leach underneath, rendering the shingle useless. Holding moisture closely to shingles can cause them to deteriorate more quickly than they normally would. This means that they act like sponges and can absorb and hold up to 20 times they’re weight. Because mosses don’t have roots to transport water to the plant body, they absorb water through diffusion directly into the plant body. There are a number of ways mosses can damage rooftops, but it really comes down to water. The combination of long periods of light rain and large trees to provide shade makes Portland, and the rest of the Pacific Northwest, a breeding ground for moss. Mosses love damp and cool places to grow. The Pacific Northwest has the ideal climate for mosses to flourish. Is a little moss really that bad? The short answer is yes. There are two main types of moss treatment, liquid and granular, and we’ll take a look at each. The good news is that there are great options for moss treatments that can save your roof from being overtaken by moss. With enough time, moss could end up causing the need for a full roof replacement. If left to take control of the roof of your building, moss can cause serious damage to the shingles of your roof and could ultimately lead to consequences like water damage. Moss Treatment: Liquid vs Granular OptionsĪ moss covered roof may have a quaint aesthetic to it that many people find appealing, but that is really the only good thing about it.
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