When it comes to roof leaks, most homeowners immediately think of missing shingles or storm damage. But one of the most common, and often overlooked, culprits behind roof leaks is flashing failure. Roof flashing is a thin material, usually made of galvanized steel or aluminum, that directs water away from critical areas like chimneys, skylights, vents, and where roof sections meet walls. When this flashing becomes damaged or improperly installed, it can create entry points for water that lead to costly damage. Today, we at Xpert Xterior would like to discuss flashing failures.
What is Roof Flashing?
Flashing acts as a seal between roofing materials and other structures. It’s commonly installed around chimneys, dormers, roof valleys, skylights, and along the edges of your roof. Its main job is to prevent water from seeping into vulnerable spots where two surfaces meet. Even the best shingles can’t do this job alone—flashing is essential for a watertight seal.
Why Flashing Fails
Flashing can fail for several reasons:
1) Age and Weathering: Over time, flashing materials can deteriorate due to sun exposure, wind, rain, snow, and temperature fluctuations.
2) Poor Installation: If flashing wasn’t installed properly or was sealed incorrectly, it can come loose or leave gaps.
3) Physical Damage: Tree limbs, heavy storms, or even animals can damage flashing or dislodge it.
4) Rust and Corrosion: Metal flashing can rust, especially if it’s old or if the protective coating has worn away.
When flashing fails, water can easily penetrate the roof and cause internal damage before you even notice there’s a problem.
Warning Signs of Flashing Issues
Flashing problems can be hard to spot without a close inspection, but some common warning signs include:
– Water stains on ceilings or walls
– Peeling paint near rooflines
– Damp or musty smells in the attic
– Visible gaps or cracks near roof penetrations
If you notice any of these symptoms, it’s time to call a roofing professional for an inspection.
Damage Flashing Leaks Can Cause
Water that enters through faulty flashing can travel along the roof deck, saturate insulation, and lead to mold and rot. Over time, this can weaken your home’s structural integrity, destroy drywall, and lead to electrical issues if moisture reaches wiring. And because flashing leaks often start small, they can go unnoticed until significant damage has already occurred.
Preventing Flashing Failures
The best defense against flashing failures is regular roof maintenance. Annual inspections can catch early signs of wear and tear. If you’re replacing your roof or having repairs done, make sure the flashing is inspected and replaced if necessary. Choose a licensed and experienced roofer to ensure flashing is installed correctly the first time.
Don’t Let Flashing Fail You
Flashing may seem like a small detail, but it plays a huge role in protecting your home from water damage. Ignoring flashing problems can lead to leaks, mold, and major repair bills. If you suspect an issue or just want peace of mind, schedule a roof inspection and make sure your flashing is in top shape. Call Xpert Xterior for your roofing needs.