Deal's Construction Company | Roofing Services in Dickson, TN 37055

Those dark streaks are typically a type of algae (Gloeocapsa magma) that thrives in our humid Tennessee climate. It feeds on limestone in asphalt shingles. While it doesn't always immediately damage the shingles, it's unsightly and can retain moisture. We use a specialized, low-pressure cleaning solution that safely removes the algae without harming the shingle granules. We can also discuss preventative measures like installing zinc or copper strips at the roof ridge to inhibit future growth.

Signs of underlayment damage include interior water stains on ceilings or walls, a musty smell in the attic, or feeling dampness on the roof decking from inside the attic. The underlayment is your roof's secondary water barrier. In Dickson, where we get heavy rain, damaged underlayment means water can seep under the shingles and rot your roof deck, leading to costly structural repairs. Our inspection will assess the underlayment's condition, and if needed, we'll replace it with high-quality, waterproof synthetic underlayment for superior protection.

It depends on the extent of the damage and the age of your roof. For isolated issues like algae on a relatively new roof, a professional cleaning and minor repairs are often sufficient. However, if we find widespread underlayment failure, multiple leaks, or your shingles are near the end of their lifespan (typically 20-25 years), a full replacement is usually more cost-effective and reliable long-term. We provide a detailed, honest assessment with clear options, so you can make the best decision for your home and budget.