Cedar roofing materials naturally expand and contract as they absorb and release moisture during changing weather conditions. Temperature fluctuations also contribute to wood movement throughout the roof system.
This movement is a normal characteristic of natural wood roofing and must be accounted for during installation. Proper spacing between cedar shakes allows for controlled expansion without warping or structural stress.
If cedar roofing is installed too tightly, expansion may cause splitting, buckling, or distortion. Excessive moisture cycling can also accelerate cracking and shake deterioration over time.
Ventilation and drainage play important roles in controlling moisture levels and minimizing excessive movement within the roofing system.
Professional cedar roof installation techniques are designed to accommodate natural expansion and contraction while maintaining weather resistance.
