The answer to 'roof maintenance curling' is that curling shingles are a common roofing problem caused by a variety of factors, including age, weather exposure, improper installation, and poor ventilation. Symptoms of curling shingles include edges lifting up or the middle of the shingle becoming concave. Solutions can range from simple DIY repairs to complete roof replacement, depending on the severity of the issue.
For minor curling, homeowners may be able to re-secure the shingles or apply a sealant to prevent further damage. However, if the curling is widespread or the shingles are significantly deteriorated, it's best to call in a professional roofing contractor to assess the situation and recommend the appropriate repair or replacement solution.