Flashing for synthetic shake roofing is crucial because it prevents water from seeping into vulnerable areas where the roof intersects with walls, chimneys, or around vents. Synthetic shakes are designed to mimic natural wood but often have a different thickness and flexibility, so choosing the right type of flashing and installing it properly can make a big difference in durability and leak prevention. The most common materials for flashing include aluminum, copper, and galvanized steel, which are shaped and layered to direct water away from seams and joints. Over time, flashing can corrode or loosen, especially if exposed to harsh weather, so it's important to regularly check for signs like rust, cracks, or gaps where water might enter.
For a simple DIY check, look closely around chimneys, valleys, and edges during or after a rainstorm to spot any moisture intrusion or damaged flashing. Also, check inside your attic for water stains or dampness to catch leaks early. If you notice any problems, or if the flashing looks old and worn, it’s best to call a roofing professional to inspect and possibly replace it. When consulting a contractor, ask, “What type of flashing material do you recommend for synthetic shake on my roof?” and “How do you ensure flashing is properly sealed without voiding my roof’s warranty?” These questions will help you understand their approach to protecting your roof and maintaining your warranty’s coverage.