Which roofing material is typically made from cedar or redwood and is produced by splitting wood along the grain?

The roofing material known as shakes is produced by splitting wood along the grain, typically from cedar or redwood. This method of production results in thicker, more textured pieces compared to shingles, which are sawn from a single piece of wood and usually have a smoother finish. The rustic appearance and natural durability of shakes make them a popular choice for roofing, especially in style-sensitive or natural-themed designs. In addition, shakes often provide excellent insulation and weather resistance, benefiting structures in various climates.

The other options—shingle, slate, and tile—represent different roofing materials with distinct characteristics and production methods; shingles are generally uniform and sawn, slate is a natural stone product, and tile is typically made from clay or concrete, neither of which involves splitting wood along the grain. This helps to underscore the unique nature of shakes as a roofing material.