The answer to 'roof vent curling shingles' is that the roof vent can cause nearby shingles to curl or buckle. This is a common issue that occurs when the vent opening is not properly sealed or flashed, allowing air and moisture to get under the shingles. Over time, this can lead to the shingles curling, cracking, or lifting up around the vent.
The symptoms of this problem include visible curling or lifting of the shingles around the vent, as well as potential leaks or water damage in that area. To fix it, you'll need to properly reseal and reflash the vent, and may need to replace any damaged shingles. This is a job that is often best handled by a professional roofer, as it requires specialized skills and tools to do it correctly.