The answer to 'gutters curling shingles' is that curling shingles are often caused by improper gutter installation or maintenance. Gutters that are not properly sloped or secured can cause water to pool and seep under the shingles, leading to curling and damage over time. This is a common issue that homeowners should address promptly to prevent further roof issues.
The main symptoms of this problem include visible curling or lifting of the shingles, water stains or leaks, and potentially mold or mildew growth. To fix it, the gutters may need to be re-sloped, secured more tightly, or even replaced entirely. This is generally a job best left to professional roofers, as improper gutter work can easily damage the roof and lead to more expensive repairs.