Cedar roof flashing refers to metal waterproofing components installed at roof transitions and vulnerable areas to prevent water intrusion. Flashing is especially important in cedar roofing systems because natural wood materials can shift slightly over time due to moisture and temperature changes.
Flashing is commonly installed around chimneys, skylights, vents, valleys, and wall intersections where water concentration is highest. Materials such as aluminum, galvanized steel, and copper are frequently used depending on roof design and environmental exposure.
The primary function of flashing is to direct water away from seams and joints before it can penetrate beneath the cedar shakes or shingles. Proper overlap and integration with underlayment are essential for maintaining waterproofing performance.
Failed or deteriorated flashing is one of the leading causes of cedar roof leaks. Routine inspection and maintenance help identify loose, rusted, or improperly sealed flashing before water damage develops.
High-quality flashing installation significantly improves the durability and weather resistance of cedar roofing systems.
