The Hidden Dangers of Asphalt Roofs: What Your Contractor Isn’t Telling You

Asphalt shingles are a prevalent roofing choice in the United States, favored for their affordability and ease of installation. However, it’s essential to understand the potential concerns associated with this material to make informed decisions about your roofing options.

Environmental Impact

The production of asphalt shingles involves significant energy consumption and the use of petroleum, a non-renewable resource. This process contributes to greenhouse gas emissions, impacting air quality and the environment. Additionally, when asphalt shingles reach the end of their lifespan, they often end up in landfills, contributing to waste. While recycling options exist, they are not universally available, and the recycling process itself can be energy-intensive.

Durability and Lifespan

Asphalt shingles typically have a lifespan ranging from 20 to 30 years, depending on factors like climate, installation quality, and maintenance. In regions with extreme weather conditions, shingles may deteriorate more rapidly, leading to issues such as cracking, curling, or granule loss. This necessitates more frequent repairs or replacements compared to more durable roofing materials.

Fire Resistance

Asphalt shingles are available with varying degrees of fire resistance, classified into ratings from Class A (highest resistance) to Class C. Fiberglass-based asphalt shingles generally achieve a Class A rating, offering better fire protection, while organic-based shingles may have lower ratings. It’s crucial to verify the fire rating of shingles, especially in fire-prone areas, to ensure adequate protection.

Algae and Mold Growth

In humid or shaded environments, asphalt shingles can be susceptible to algae and mold growth, leading to discoloration and potential degradation of the roofing material. While this doesn’t typically affect the structural integrity immediately, it can impact the aesthetic appeal of your home and may require cleaning or treatment to address.

Recycling and Waste Management

Disposal of asphalt shingles poses environmental challenges. The U.S. generates about 11 million tons of asphalt shingle waste annually from roof replacements, much of which ends up in landfills. While recycling programs exist, they are not widespread, and the presence of contaminants like asbestos in older shingles can complicate recycling efforts.

Conclusion

While asphalt shingles offer a cost-effective and accessible roofing solution, it’s important to weigh these benefits against potential environmental impacts, durability concerns, and maintenance requirements. Considering alternative materials, such as metal roofing or sustainable options like solar-integrated tiles, may provide longer-term benefits and align better with environmental sustainability goals.

Stay informed and consult with roofing professionals to choose the best material for your specific needs and circumstances.

“The Dark Side of Asphalt Roofing: Environmental Impact and Recycling Challenges” – Factor Roofing

“Asphalt Shingle Roof Lifespan: How Long Will It Last and How to Maximize It” – Roof House Pedia

“Asphalt Shingle” – Wikipedia

“Asphalt Roof Shingles Lifespan: How Long Do They Really Last?” – Roof House Pedia

“Asphalt Shingles’ Impact on the Environment” – Cericade