Some of the things that you want to look for as a home owner with a cedar shake roof, are the typical signs that it is time to get your roof cleaned. These signs can be fairly easy to notice.
Is your cedar becoming dark? Mature cedar is a light grey color, the dark areas are fungi and algae growth. These infestations will rapidly break down the wood fibers and create moisture issues.
Are the individual shakes beginning to curl up? This is a true sign that your roof is dried out. Cedar shakes have a natural 3% oil that is drawn out by the sun over time. These essential oils need to be reintroduced back into the cedar shakes, otherwise their life span will be significantly reduced.
How long should my cedar shake roof last? Given this area, your cedar shake roof should last anywhere from 40 to 60 years. This is all subjective on the cedar shakes being maintained properly. To many home owners are being lied to about the lifespan of cedar shake roofs.