When homeowners think about roof problems, they usually imagine missing shingles or visible storm damage. But many leaks actually start in a less obvious place — roof flashing.
Flashing is the material installed where your roof meets walls, chimneys, and other structures. Its job is to prevent water from entering vulnerable areas of your roof.
In Shiloh, IL, where homes experience heavy rain, strong winds, and seasonal storms, proper flashing installation and maintenance are critical. A small flashing issue can allow water to slowly enter your home and cause damage over time.
At Barringer Brothers Roofing, roof flashing inspections are one of the most important parts of protecting homes throughout the Metro East area.

What Is Roof Flashing?
Roof flashing is typically made from metal and installed in areas where the roof surface meets another structure.
Common flashing locations include:
• Roof-to-wall transitions
• Chimneys
• Skylights
• Roof valleys
• Around vents and pipes
The purpose of flashing is simple: direct water away from seams and joints in the roofing system. Without properly installed flashing, these areas become easy entry points for water.
Why Roof-to-Wall Flashing Is One of the Most Important Areas
One of the most common leak locations we see in Shiloh homes is where a roof slope meets the siding of a wall, like the area shown in the image above.
These areas rely on step flashing, which is installed underneath each row of shingles and layered up the wall. This layered system helps guide water safely down the roof and into the gutter.
If flashing is missing, installed incorrectly, or damaged, water can slip behind the siding and enter the structure of the home.
Over time, this can lead to:
• Interior leaks
• Rotting roof decking
• Mold growth
• Structural damage
Because these problems often start slowly, homeowners may not notice them until significant damage has already occurred.
Signs Your Flashing May Need Inspection
Flashing problems aren’t always visible from the ground. However, there are several warning signs that indicate it may be time for a professional roof inspection.
Common signs include:
• Water stains on ceilings or walls
• Leaks after heavy rain
• Shingles pulling away from the wall area
• Loose siding near the roofline
• Rusted or exposed flashing
If you notice any of these issues, a professional roof inspection can help determine whether flashing is the cause.
How Weather in Shiloh, IL Impacts Flashing
Homes in the Metro East region experience a wide range of weather conditions throughout the year.
Heavy rains, wind-driven storms, and freeze-thaw cycles can all impact roofing materials and flashing over time.
Strong winds can loosen shingles near flashing areas. Winter weather can cause expansion and contraction that slowly separates flashing from the roof surface.
Even a small gap can allow water to enter during a storm.
Regular roof inspections help catch these small issues early, before they turn into larger repairs.
The Importance of Professional Roof Inspections
Because flashing is layered underneath shingles and siding, it often requires a trained eye to properly inspect.
During a professional inspection, a roofing contractor will evaluate:
• Flashing installation and condition
• Shingle placement near wall transitions
• Sealant and protective barriers
• Water flow toward gutters
This type of inspection helps ensure your roof system is functioning as a complete waterproof barrier.
At Barringer Brothers Roofing, we take a careful approach to roof inspections so homeowners understand the true condition of their roof.
Protecting Your Home With Proper Roof Maintenance
Many roof problems can be avoided with regular inspections and maintenance.
Homeowners in Shiloh should consider scheduling a roof inspection if:
• Their roof is over 10 years old
• A major storm recently passed through the area
• They notice signs of leaks or water damage
• They are planning to buy or sell a home
Catching flashing problems early can prevent larger issues with the roof structure, insulation, or interior of the home.
Schedule a Roof Inspection in Shiloh, IL
If you’re concerned about your roof or want to make sure your flashing is properly protecting your home, the team at Barringer Brothers Roofing is here to help.
Our experienced team provides thorough roof inspections for homeowners throughout Shiloh, IL and the surrounding Metro East communities.
Contact Barringer Brothers Roofing today to schedule your inspection and make sure your roof is ready for the next storm.