Not all wood shakes are equal in quality.
The most important factor in selecting a quality, long lasting wood shake is the angle of
Shingles come in three basic grain exposures: edge grain, flat grain and slash grain. The quality
can be judged by the appearance of the grain.
Grain appearance is determined by the part of the log from which the shake or shingle is cut.
Grain is important because it has a great influence on the long-term stability of the shake or
shingle. Stability is determined by how likely the shake or shingle is to check, split, erode or
suffer distortion, such as twisting, curling or cupping. Checking is cracking that doesn’t continue
clear through the shake or shingle.
Edge grain and flat grain are the most common types of shingles, although it’s not unusual to
find some flat-grain shingles on a roof that has mostly edge grain.
Edge grain and flat grain refer to the orientation of the tree's annular growth rings to the sawn
surface of the shingle or the split face of a shake. These terms are used similarly in all aspects of