What class of fire resistance does wood shingles and shakes typically have?

Wood shingles and shakes typically hold a Class C fire resistance rating. This classification indicates that while they provide some level of fire resistance, it is not as high as that of materials receiving Class A or Class B ratings. Class C materials can be more vulnerable to ignition, especially in the face of direct flames or intense heat.

In roofing, the resistance to fire is a crucial consideration, particularly in areas prone to wildfires or extreme weather conditions. Class A materials are resistant to severe fire exposure and are generally used in more hazardous environments, while Class B materials offer moderate resistance. Wood shingles and shakes, being combustible, do not qualify for the higher classes due to their propensity to ignite more easily compared to non-combustible materials. Hence, they are categorized as Class C, which makes them less suitable for certain applications where high fire resistance is essential.