How Seasonal Changes Affect Your Roof in Michigan

Michigan's diverse and often extreme weather patterns can have a significant impact on your roof. With cold winters, hot summers, and unpredictable storms in between, it's crucial for homeowners to understand how seasonal changes can affect roofing materials and how to prepare for each season.

1. Winter: Snow, Ice, and Freezing Temperatures

Impact on Roofing: Michigan winters are notoriously harsh. Snow accumulation adds extra weight to your roof, which can cause structural stress over time. Ice dams are another common winter issue—these can form when heat escapes from your attic, causing snow to melt and refreeze at the roof’s edge, potentially damaging shingles and gutters. Repeated freeze-thaw cycles can also lead to cracks in roofing materials, especially in asphalt shingles, weakening their integrity.

Preparation Tips:

  • Roof Inspection: Before the first snowfall, have a professional inspect your roof for any cracks or loose shingles that could become worse under snow and ice.

  • Attic Insulation: Proper insulation can prevent heat from escaping your home and minimize the risk of ice dams.

  • Snow Removal: After heavy snowfall, use a roof rake to clear off excess snow and reduce the weight on your roof.

2. Spring: Rain and Wind

Impact on Roofing: Spring brings heavy rains and winds, which can expose weaknesses in your roof. Missing or damaged shingles can allow water to seep into the structure, leading to leaks and moisture buildup, which can result in mold and mildew—a serious issue in Michigan due to its humid springs.

Preparation Tips:

  • Gutter Maintenance: Ensure that gutters and downspouts are clean and functioning to prevent water buildup on your roof.

  • Roof Flashing: Check around chimneys, vents, and skylights for flashing damage, as these areas are prone to leaks during spring rains.

  • Roof Repairs: Repair any damage that occurred over the winter, such as loose or missing shingles, before the rainy season intensifies.

3. Summer: Heat and UV Rays

Impact on Roofing: The summer heat in Michigan may not be as intense as in some southern states, but the prolonged exposure to UV rays can still take a toll. Asphalt shingles can crack, blister, or curl due to excessive heat, while wood shingles can dry out and warp. High humidity levels can also trap moisture under shingles, creating the perfect environment for mold growth.

Preparation Tips:

  • Ventilation: Ensure your attic is properly ventilated to help regulate the temperature and prevent heat from getting trapped under the roof.

  • Shingle Inspection: Look for signs of sun damage, such as cracked or curled shingles, and replace them as necessary.

  • Trim Overhanging Branches: Trees can provide shade but can also drop debris and moisture, causing algae growth on your roof during the summer.

4. Fall: Leaves, Debris, and Temperature Fluctuations

Impact on Roofing: Fall can bring unpredictable temperature swings, along with falling leaves that clog gutters and trap moisture on your roof. The constant shift between warmer days and cooler nights can cause materials to expand and contract, leading to wear and tear on your roof over time.

Preparation Tips:

  • Leaf Removal: Regularly clear leaves and debris from your gutters and roof to avoid moisture buildup.

  • Sealing and Caulking: Inspect areas around flashing, vents, and chimneys for any cracks and reseal them to prevent leaks.

  • Pre-Winter Inspection: As fall winds down, have a professional inspect your roof and make any necessary repairs to ensure it’s ready for winter’s challenges.

Final Thoughts

Michigan’s changing seasons present unique challenges for homeowners. By taking proactive steps to maintain your roof and prepare for each season, you can extend its lifespan and avoid costly repairs down the road. Regular inspections, timely repairs, and seasonal maintenance are the keys to keeping your roof in top shape year-round.


Allied Siding and Roofing is a local family-owned and operated roofing company specializing in James Hardie installation and other exterior needs such as roofing, decking, and porch extensions. We are a James Hardie Elite Preferred company which means we have extensive experience and education in installation and choosing the right products for our customers. If you’re located in the Metro Detroit Area, contact us at (248) 814-2852 or visit our website https://www.buildwithallied.com/ for more information on how we can collaborate on your dream home!