How long will your home's roof last? Whether you recently bought your first home or you want to prepare for future exterior improvement projects and roofing services, take a look at the factors that may affect your roof's life span.
The Roofing Material
Different types of materials have different life spans. While several factors may go into the decision to choose a roof, the material's overall expected longevity is a major reason to select on type over another.
According to the International Association of Certified Home Inspectors (InterNACHI), the average anticipated life span of a roof by material is:
- Asphalt shingles. This popular pick is an affordable option that is available in colors to fit almost every type of exterior décor. The average life span of three-tab asphalt shingles is 20 years.
- Clay or concrete. This highly durable roofing option has one of the highest average life spans — over 100 years.
- Copper. A copper roof may not have the life span of clay or concrete tiles. But it can last for more than 70 years.
- Metal. Metal roofing also has a longer life span than other materials, lasting for between 40 and 80 years.
- Slate. Even though slate has a broad life span age range, this elegant-looking material can last for well over a century. Slate's average span is anywhere from 60 to 150 years.
- Wood. Wood may have a classic rustic appeal. But this material may only last for 25 years.
Think of the materials' average lifespan as the foundation. Add other factors onto the foundation (expected average life span) to project the number of years your roof is likely to last.
The Roof's Pitch
Roof pitch is the angle of the roof as it slopes downward. A higher pitch equals a steeper slope. The angle or slant of your roof may seem like it's primarily an aesthetic factor. But the slope also plays a key part in the roof's life span.
What does pitch have to do with your roof's life span? The roof's pitch:
- Helps water roll off the surface. A steeper slope moves water off and away from your roof. This reduces the risk of water-related damage and may extend the life of your roof.
- Prevents ice issues. Free-flowing water isn't the only elemental issue that can affect your roof's life span. Icy buildup can also prematurely wear your roof.
- Reduces debris buildup. Leaves, plant-life, and other debris can settle on your roof. On a flatter roof, debris can buildup and cause rot or mold issues.
Along with material and pitch, maintenance plays a primary role in your roof's life span. Discuss preventative roofing services with a contractor to keep your home in top shape for years to come.