A roof is one of the most important parts of any building, protecting everything underneath it from the elements. Whether it’s a home or a commercial property, knowing when it’s time to stop patching and start planning for a full replacement can save money, prevent structural damage, give peace of mind, and cover warranty and insurance concerns.

One clear sign it is time for a new roof is its age. Most asphalt shingle roofs last between 20 and 25 years, while commercial roofing systems like TPO or EPDM may last slightly longer depending on conditions.

Frequent repairs are another red flag. If you are constantly dealing with leaks, water stains, or missing shingles, it may be more cost-effective to replace the roof entirely rather than to keep patching it.

Another indicator is visible damage. Sagging spots, warped or curling shingles, cracked tiles, or bubbling in flat roofing systems can all point to deeper issues that repairs will not fix. For commercial buildings, pooling water and damaged flashing are also signs of a failing system. Inside the building, signs like mold, mildew, or water spots on ceilings or walls could mean moisture is seeping in through compromised roofing materials.

A worn-out roof may also no longer provide proper insulation or ventilation, causing heating and cooling systems to work harder. If your utility bills have spiked without explanation, it could be time for a professional roof inspection.

While regular maintenance can extend the life of a roof, nothing lasts forever. The roofing professionals at Northern Illinois Seamless Roofing can help you determine when to stop repairing and consider replacement to help protect your investment and ensure the safety and integrity of your property for years to come.

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