When small issues appear, like lifted shingles or worn sealant, water can slip into vulnerable areas and create stains, rot or mold Many leaks start at flashing points or around penetrations, where movement and weather exposure break down seals over time A roof maintenance plan can also help catch problems before they lead to emergency calls during peak rainy periods. When a roof is older or has widespread wear, comparing ongoing repair costs with a roof replacement estimate seattle roofing company can help with budgeting With routine maintenance and timely repairs, many roofs can shed water more effectively and reduce leak risks across seasons