Residential Roof Replacement in Fenton, Michigan

Project Overview

During our initial inspection, it was clear this roof had several issues that required prompt attention. The most significant concern was widespread granular loss across the shingles. This type of deterioration weakens the roofing system and was the main cause of the leaks the homeowner was experiencing inside. The roof also showed heavy mildew growth and dark streaking that had developed over time.

What Causes Granular Loss

Granular loss occurs for a variety of reasons, and it is one of the most reliable indicators that a roof is nearing the end of its lifespan.

Weather Exposure

Over years of harsh Michigan weather, shingles naturally shed granules. UV rays, wind, rain, and temperature swings all contribute to this breakdown.

Aging Materials

As shingles age, the asphalt underneath begins to dry out. When this happens, granules no longer adhere well to the surface and start to fall away.

Physical Damage

Storm debris, hail, and foot traffic can accelerate the loss of granules. Once enough granules are missing, shingles lose their ability to shed water properly and the home becomes vulnerable to leaks.

In this case, the granular loss was advanced enough that the home had active water intrusion.

Why Mildew and Streaking Occur

Along with material wear, the roof had widespread mildew and dark streaks.

Moisture Retention

Mildew thrives in areas where moisture lingers. Shaded sections of a roof or areas with poor drainage are more susceptible.

Algae Growth

Many older roofs develop black or dark streaks caused by algae growth. While it often starts as a visual concern, it can indicate that the roof surface is holding moisture and breaking down.

Reduced Shingle Performance

Mildew and algae do not just impact appearance. They often coincide with aging shingles and can speed up surface deterioration when not addressed.

Our Solution

To restore the home and provide long lasting protection, we installed CertainTeed Landmark shingles in Moire Black. This shingle line is known for its durability, impact resistance, and strong warranty support. The new roof eliminated the leaks, resolved the cosmetic issues, and gave the home a clean, updated look.