Last Updated on April 4, 2024 by Admin
Every homeowner, at some point, is curious about how long their roof will last until they have to replace it due to natural wear and tear over the years. Typically, a standard asphalt shingle roof will last an average of 30 years but possibly even more with proper maintenance. However, other materials can last well between 25 to 50 years and beyond. There are several factors to keep in mind that impact a roof’s lifespan.
According to residential roofing experts, a roof’s longevity ultimately depends on the quality, durability, and type of material chosen. Keep in mind that you usually get what you pay for. The more invested you are in your new roof, the longer it will protect your home from nature’s elements.
As a recommendation, homeowners should consult with a professional roofing contractor to weigh in on their options on material choice and pricing.
InterNACHI’s Lifespan Estimate for New Roofs
The International Association of Home Inspectors (InterNACHI) provides specific figures on the lifespan of various roofing materials used in residential projects today. The association agrees that a roof’s lifespan largely depends on material quality, design, and adequate maintenance, including other factors such as weather conditions.
According to InterNACHI’s Life Expectancy Chart for Roofs:
- Asphalt Roofs (Architectural): 30 years
- Standard Asphalt Shingle Roofs (3-tab): 20 years
- Clay/Concrete Roofs: 100+ years
- Coal and Tar Roofs: 30 years
- Copper Roofs: 70+ years
- Metal Roofs: 40 to 80 years
- Slate Roofs: 60 to 150 years
- Wooden Roofs: 25 years
Factors That Affect the Lifespan of a Roof
Extreme heat or cold, as well as exposure to heavy thunderstorms and falling debris, can significantly reduce the average lifespan of a roof. Also, improper installation and lack of routine maintenance can shorten a roof’s lifespan.
The following are seven factors that contribute to the lifespan of a roof:
- Material Durability – Indicates how resistant the material is to the natural elements.
- Material Color – In sunny climates, lighter roof colors are preferred, as darker colors absorb more heat from the sun (which could lead to overheated, cracked, and broken roofing tiles).
- Slope – A steep roof with adequate drainage will last longer than a flat or low-slope roof with inadequate drainage.
- Ventilation – Inadequate roof ventilation can result in damage and an earlier-than-expected roof replacement.
- Underlayment – You must install roofing underlayment (a waterproofing layer) beneath your roof. Thus, the underlayment will prevent mold, moisture, and additional rot damage if your roof’s top layer becomes damaged.
- Quality of Installation – Finding the best roofing contractor for your project is essential. Choose a roofing contractor who uses high-quality materials to withstand the elements (and the test of time).
- Scheduled Maintenance – Roofs require routine inspections and maintenance to ensure their functionality. If you notice a problem with your roof and fix it right away, you can avoid costly repairs or a roof replacement in the future.
Determine Your Roof’s Longevity With an Inspector
Ultimately, the only way to determine if you need a new roof is to hire a local roofer to inspect the roof. Nevertheless, there are clear indications that you need a new roof. You can seek the assistance of a roof inspector to inspect the attic for signs of water leakage or get a ladder and climb on top of your roof for a quick look at the surface. Have them inspect your roof regularly, as they can fix minor issues before they become major ones.
