Medina Roofing | Roofing Services in Cottage Grove, MN 55016

Common signs include a musty smell in your attic, visible mold or mildew on rafters, ice dams in winter, and unusually high heating or cooling bills. Because our local humidity can exacerbate these issues, we recommend a professional inspection from Medina Roofing. We use moisture meters and thermal imaging to accurately detect hidden moisture before it leads to roof decking rot.

Yes, roof decking rot is a frequent problem in Cottage Grove due to moisture accumulation from poor attic ventilation or past leaks. Repair involves safely removing the affected shingles, cutting out and replacing the rotted wood sheathing (plywood or OSB), and ensuring proper underlayment is installed. At Medina Roofing, we always address the underlying moisture source—like improving ventilation or fixing flashing—to prevent the problem from recurring.

Absolutely. Properly functioning gutters and downspouts are your roof's first line of defense. In Cottage Grove, clogged or damaged gutters can cause water to back up under your shingles and seep into the roof deck, leading to the moisture and rot issues we often see. Our gutter services ensure water is directed well away from your foundation and roof edges, protecting your entire home's structure.