Cedar roof thermal movement refers to the expansion and contraction of cedar shakes in response to temperature fluctuations and moisture changes.
As temperatures rise, cedar expands slightly, and as it cools or dries, it contracts. This natural movement is a normal characteristic of wood roofing systems but must be accounted for during installation.
Improper spacing or fastening can restrict movement, leading to splitting, warping, or fastener stress over time.
Thermal movement is more pronounced in climates with large seasonal temperature variations. Proper installation techniques and ventilation systems help reduce stress caused by repeated movement cycles.
