Cedar shake roofs offer a beautiful, artistic quality to homes and other structures. Because of their more delicate nature, they require special maintenance and care so that they continue to look attractive and last as long as possible without replacement.
Why Moss on a Cedar Roof is a Problem
Moss is one of the most prominent threats to cedar shake roofing. Over time, moss buildup can block the flow of water and lead to leaks. Moss also absorbs moisture and soil, meaning it can damage cedar shake roofing if left without removal for an extended period.
There are efficient and affordable ways to safely remove moss on a cedar roof. Because of the delicate nature of the shingles, it's important to work carefully with whatever method you choose. Below are some tips and key considerations we've compiled for removing moss from cedar shake roof.
Cedar Roof Moss Removal Steps
1. Remove the Source of Moss
The best way to avoid cedar shake roof moss is to eliminate the source by trimming back trees that overhang or otherwise encroach on your roof. It’s best to get into a regular rhythm of tree trimming so the roof remains completely clear of moss. If moss is allowed to collect atop a cedar shake roof, it’s only a matter of time before the roof itself begins to decay, greatly decreasing the roof’s life expectancy.
2. Install Copper or Zinc Strips
Some owners of cedar shake roofing install copper or zinc strips toward the ridge cap or vent of their roofs. These strips are known to prevent the development of mold, algae and moss down the surface of a cedar shake roof. If installed and spaced correctly, these strips can prevent the need for cedar shingles moss removal.
3. Use Proper Cleaning Solutions
If moss does develop on your cedar shake roof, it’s essential to use only specific types of cleaning solutions. The best solution to remove moss from a cedar roof is chlorine or oxygen bleach mixed with water. These types of bleaches are effective at killing algae and mold on cedar shake roof surfaces, and they provide a clean, tan-colored finish. Also, using the right type of bleach removes just enough of the wood fibers that have weathered over time.
How to Clean a Cedar Shake Roof
Start with a weak mixture of bleach and water, and always use a weak sprayer or soft-bristled brush to do the cleaning. If you’re not getting results, increase the amount of bleach in your mixture. But be careful — too much bleach can lead to the removal of too much fiber from the surface.
4. Skip the Power Washing
If you want to safely remove moss on a cedar roof, it’s best to skip the power washing. It’s possible to power wash a cedar shake roof safely, but power washing can cause serious damage to a cedar shake roof when done incorrectly. Considering the investment that a cedar shake roof represents, it’s best to stay safe when cleaning cedar shingles and avoid power washing altogether.
5. Hire an Experienced Professional
If you need cedar shingles moss removal, consider hiring an experienced professional. Not all roofing companies know how to install, repair and maintain cedar shake roofing, so find a company that has experience with cedar shakes.
6. Consider a Replacement
No matter how well you clean your cedar shake roof, replacing your cedar shakes will be a necessity in time. At Custom Shingles, our specialty is installing custom, artistic roofing made of cedar shakes, Teak shingles, Wallaba shingles and other high-end materials. If the time has come for you to replace your cedar shake roof, contact us for a free estimate.