Harter Roofing | Roofing Services in Grantsburg, WI 54840

In Grantsburg, the freeze-thaw cycles and high winds are common culprits for lifting roof flashing, breaking the seal. Harter Roofing fixes this by removing the compromised flashing, properly preparing the surface, and reinstalling new, high-grade flashing with durable, weather-resistant sealants to create a permanent barrier against the elements.

Roof valleys channel a lot of water and debris. In our climate, ice dams and heavy rain can overwhelm or damage the valley lining. Our repair process involves a thorough inspection, clearing any debris, and applying a new, reinforced valley system—often using ice and water shield membrane—to ensure it can handle Grantsburg's specific weather challenges.

For long-term protection in Grantsburg, we recommend and install premium, corrosion-resistant metal flashing and high-performance synthetic underlayments, especially in valleys. These materials are specifically chosen for their durability against thermal expansion, contraction, and moisture, which are key to preventing the flashing lift and valley leaks we often see.