Although cedar roofs are durable, they do get damaged just like other types of roofs. Here are some of the telltale signs that may mean your cedar roof is damaged and needs to be replaced or repaired:
Most of the Shakes Are Splitting
Your cedar roof is nearing the end of its life if most of the cedar shakes are splitting. This is particularly true if the splits have rounded edges and the shakes have been on your roof for years. This kind of damage typically occurs as a result of natural wear and tear (weathering) caused by weather elements such as snow, sunlight, and rainfall, as well as the natural degradation of the wood.
Most of the Shakes Are Curling
You should also prepare for an imminent roof replacement project if the cedar shingles are curling. This is also part of the natural weathering process of cedar wood; the shakes curl upwards after repeated swelling and drying (caused by moisture and rain). Note that the curling can lead to roof leaks because the shakes won't be lying flush on the roof.
Most of the Shakes Show Signs of Rot
Although rot and decay are not common with cedar shakes in the short term, all wood products eventually rot. For cedar shakes, you may notice signs of rot along the bottom edges of the shakes. In some cases, you may also notice microorganism growth, such as algae and lichen. These are signs of rot, and they also contribute to further rot, leading to a vicious cycle of decay. This is more likely to be the case in rainy climates or roofs that are mostly in the shade than roofs that are usually dry.
Multiple Shakes Have Fallen Off the Roof
In some cases, your cedar roof may also signal that it's time for a replacement by shedding its shakes. For example, you may notice that your roof has lost many shakes after a storm, snowfall, rainfall or such like things. Of course, this will also lead to roof leakage in the long run.
The Roof Is Leaking
Lastly, your cedar roof definitely needs to be replaced if it is leaking—particularly if it is leaking in multiple places. As mentioned in the above paragraphs, most of the initial problems associated with aging cedar shakes or shingles will end in roof leaks. In some cases, the obvious leaks only appear after the roof has been experiencing hidden leaks for some time.
For additional advice, contact roofing contractors in your area.