Most wood shingles roofs are made from Western Red Cedar because of its durability and resistance to pest damage. Preservative treated pine and similar wood species are also used. Real cedar is a perennial that has a natural, rustic appearance; all wood types give a roof a very natural appearance and blend well with the environment.
Wood shingles are smooth while shakes are more rustic and rough hewn. Available in varying lengths and random widths, the life expectancy for most wood shingles is 15 to 25 years.
The downside to wood shingles is that they require pressure treatment to become fire retardant and in some fire prone areas, are forbidden for use. In more humid climates, wood shingles are treated with a fungicide and preservatives, as they are susceptible if untreated.