When it comes to protecting your home from water damage, flashing plays a crucial role—yet many homeowners aren’t sure what it is or why it matters. At Northern Illinois Seamless Roofing, we believe understanding your roofing system helps you make better decisions about maintenance and repairs, and flashing is one component you don’t want to overlook.

Flashing is typically made from thin pieces of aluminum or galvanized steel, and is installed at joints, seams, and any place where your roof meets a vertical surface. Common locations include chimneys, vents, skylights, and around dormers. Flashing directs water away from those vulnerable spots and prevents it from seeping under your roofing materials. Don’t rely on the standard practice of caulk only, as longevity is key.

Without properly installed and maintained flashing, water can easily find its way into your home. Even a small leak can lead to major problems—rotting wood, mold growth, damaged insulation, and costly interior repairs. These issues often go unnoticed until they become serious.

Flashing also helps prolong the lifespan of your roof by enhancing its weather resistance. In areas like Northern Illinois, where harsh winters and heavy storms are common, flashing provides a first line of defense against melting snow and wind-driven rain. That’s why quality installation and regular inspections are so important.

At Northern Illinois Seamless Roofing, we take flashing seriously. Whether you’re building new, scheduling routine maintenance, or dealing with a leak, we ensure that your flashing is properly fitted and sealed to protect your home for the long haul. It may be a small part of your roof, but flashing does big work—and keeping it in top shape is essential to a dry, secure, and worry-free home.

Northern Illinois Seamless Roofing, Inc. is a local family-owned commercial roofing solutions company that has served the Mendota and surrounding communities for over 40 years.

For more information, or to schedule a quote, please contact:

Northern Illinois Seamless Roofing, Inc.

705 Illinois Avenue

Mendota, IL 61342

Ph: 815-539-5142

www.nilsroofing.com