J Malli Roof And Overhead Doors | Roofing Services in Northwood, IA 50459

In Northwood, these issues are often caused by our Iowa climate. Temperature fluctuations can cause materials to expand and contract, loosening flashing seals. Moisture from rain and snow, combined with sun exposure, can lead to shingle curling and granule loss. Improper attic ventilation can also contribute by creating excess heat under the roof deck.

We start by carefully removing the damaged or lifted flashing. We then clean and prepare the area, apply a new waterproof underlayment, and install new, high-quality flashing sealed with durable, weather-resistant caulking. Our focus is on creating a watertight seal that can withstand Northwood's freeze-thaw cycles to prevent leaks around chimneys, vents, and valleys.

It depends on the extent of the damage. For isolated curling, we can often replace individual shingles or small sections. However, widespread curling across the roof surface typically indicates aging or underlying ventilation issues, and a replacement may be the most reliable, long-term solution. We provide a honest assessment to help Northwood homeowners make the best decision for their home and budget.