The answer to 'roof decking curling shingles' is that this is a common problem caused by improper roof deck ventilation or water damage. Symptoms include warped or uneven roof decking, which causes the shingles to curl and lift. This can lead to leaks, roof failure, and costly repairs.
The most common causes are inadequate attic ventilation, poor roof deck insulation, or water intrusion from leaks. Homeowners should inspect the attic and roof deck for signs of moisture, mold, or damage. Resolving the underlying issue, such as improving ventilation or replacing water-damaged decking, is critical to prevent further deterioration.