Mad Dog Construction | General Contractors & Roofing in Alexandria, MN 56308

In our area, roof decking rot is often caused by trapped attic moisture and inadequate ventilation, which is common in older homes. We fix it by first safely removing the damaged sections of decking. Then, we identify and correct the root cause—usually by improving attic airflow with proper soffit and ridge vents—before installing new, treated decking and your chosen roofing materials. This comprehensive repair stops the current damage and prevents it from recurring.

Roof flashing lift in Alexandria is typically due to our extreme temperature swings, which cause materials to expand and contract, loosening nails and sealants over time. Our solution is to remove the compromised flashing and install a new, high-grade system. We use wider, more durable flashing materials and specialized, cold-weather adhesive sealants designed for our climate. We also secure it with corrosion-resistant fasteners placed strategically to allow for natural movement without failure.

Absolutely. While it might not seem directly related, old, drafty windows contribute to indoor moisture problems and temperature imbalances that stress your roof structure from underneath. Our energy-efficient window installations create a tighter thermal envelope for your Alexandria home. This reduces condensation and ice dam formation in the attic, which are leading causes of decking rot and flashing leaks. It's a proactive step in a holistic approach to home protection.