Moss and lichen can physically damage concrete and asphalt paving by penetrating and breaking down surface and subsurface materials. They also coat surfaces with a slick vegetative layer, especially when wet, that can be hazardous. The Pacific Northwest is particularly susceptible to moss and lichen growth due to our moist and mild climate. Regular cleaning and maintenance can help prevent or minimize the damage caused by moss and lichen growth on your paved surfaces.
Here are a few things you can do to protect your concrete and asphalt from moss and lichen growth:
- Regularly clean your concrete and asphalt surfaces to prevent moss and lichen from growing. Use a pressure washer or a stiff-bristled scrub brush and a cleaning solution to remove any moss or lichen that has already been established.
- Trim back any vegetation that may be providing too much shade or moisture to the concrete or asphalt surface. This will help to reduce the conditions that allow moss and lichen to flourish.
- Improve drainage and ventilation around your concrete and asphalt surfaces to keep them dry. Make sure water doesn’t pool on the surface and that it’s exposed to sunlight and air flow.
- Apply a moss and lichen prevention treatment. There are many commercially available treatments that you can use to prevent moss and lichen growth on your concrete and asphalt surfaces. These treatments typically include a biocide that kills any existing moss or lichen spores and a protective coating that helps to repel new growth.
Contact Us for more information about how to keep your surfaces moss and lichen-free, or to request a quote.
