Many homeowners are unfamiliar with the structure of a roofing system, so when they need a roof repair, they don’t always recognize the issue. Roof flashing is a thin metal material installed strategically to prevent water from entering openings, such as the cracks around chimneys and vents. Unfortunately, problems with this feature can cause serious leaks and structural damage. Here's what you should know about why flashing fails and what can be done to prevent or fix it.

What Are the Main Causes of Roof Flashing Problems?

1. Severe Weather

Your roofing system is built to protect your home and family from severe weather, but it can become damaged in the process. Temperature extremes often cause roofing materials to expand, contract, and warp. This can distort and wrinkle other parts of the roof, including flashing. The constant cycle may make flashing shorter or misshapen over time. 

As snow and ice melt and refreeze underneath the metal during the winter, the resulting expansion can contribute to the warping of your flashing. Deformed flashing leaves the creases and roofing system underneath vulnerable to water damage.

2. Installation Issues

A new roof installation should always include flashing, and both projects should be completed by a licensed and fully insured roofing contractor. Precision and experience are critical in ensuring that the structure is secure and impenetrable to leaks. 

If the installation was handled improperly, you may experience flashing failures and leaks within months of its completion. A qualified roof repair service can fix or replace the flashing as necessary.

3. Old Age

Like the rest of your roofing system, flashing won’t last forever. It may bend as the house settles over the years, warp due to seasonal transitions, or rust from consistent moisture exposure. After a few decades, you'll likely need new flashing. This should generally be done at the same time as a roof replacement since the systems essentially age at the same rate. 

Keep in mind that different roofing materials have varying life spans. For example, asphalt shingle roofing usually lasts about 20 years with proper maintenance, metal roofing is expected to last 40 to 70 years, and slate and tile roofs generally get more than 50 years of use.

If you need a reliable contractor to fix your roof flashing, you can count on Lasco Roofing & Sheet Metal Co. in New Milford, CT. Serving homeowners throughout Litchfield County, this contractor has over 35 years of experience providing custom and affordable roofing solutions. This family-owned business is dedicated to performing dependable roof repairs, installations, and replacements that will protect your home for years to come. Learn more about their services online, or call (860) 355-8060 to request a free estimate.