The lifespan of a commercial roof is one of the factors that determine its cost-effectiveness. It also determines how often it will need repairs or replacement, affecting both the short-term and long-term costs of owning a commercial roof. In this blog, we’ll look at the average lifespan of different commercial roofs and some factors that can affect a roof’s lifespan.
The average lifespan of a BUR (built-up roof) is 15 to 20 years. BUR roofs are made of asphalt and gravel layers, making them very durable. However, the lifespan of a BUR roof can be reduced by factors such as poor installation, lack of maintenance, or exposure to harsh weather conditions.
The average lifespan of a modified bitumen roof is 15 to 20 years. Modified bitumen roofs are similar to BUR roofs but have an extra layer of protection in the form of a membrane or coating. This makes them more resistant to weather damage and extends their lifespan. However, like BUR roofs, the lifespan of a modified bitumen roof can be reduced by factors such as poor installation, lack of maintenance, or exposure to harsh weather conditions.
The average expected lifespan of a metal roof is 30 to 45years. Metal roofs are durable and resistant to weather damage, making them a good choice for commercial buildings. However, the lifespan of a metal roof can be reduced by factors such as poor installation, lack of maintenance, or exposure to harsh weather conditions.
The average lifespan of a single-ply membrane roof is 20 to 30 years. Single-ply membrane roofs are made of a single layer of material, which makes them lightweight and easy to install. However, the lifespan of a single-ply membrane roof can be reduced by factors such as poor installation, lack of maintenance, or exposure to harsh weather conditions.
TPO roofs have the shortest lifespan of all the types of single-ply membrane roofs, with an average lifespan of 15 to 20 years. PVC roofs have a slightly longer lifespan, with an average lifespan of 20 to 25 years. EPDM roofs have the longest lifespan of all the types of single-ply membrane roofs, with an average lifespan of 25 to 30 years.
Factors That Influence the Lifespan of a Commercial Roof
Several factors can affect the lifespan of a commercial roof, including:
1. The Type of Roof:
As we’ve seen, the type of roof can greatly impact its lifespan. For example, metal roofs are generally more durable than single-ply membrane roofs as they are more resistant to weather damage.
2. The Quality of the Materials:
The quality of the roofing materials used to construct the roof can also affect its lifespan. For example, roofs made with higher-quality materials will generally last longer than those made with lower-quality materials.
3. The Climate:
The climate in which the roof is installed can also affect its lifespan. For example, roofs in climates with high temperatures and humidity may not last as long as those in cooler, drier climates.
4. The Installation:
The quality of the installation is also a factor that can affect a roof’s lifespan. Commercial roof installation requires a high level of expertise, and roofs that are installed properly will generally last longer than those that are not.
5. The Level of Maintenance:
Proper maintenance is essential to prolonging the lifespan of a commercial roof. Regular inspections and repairs can help to identify and fix problems before they cause major damage.
6. The Warranty:
The warranty on a commercial roof can also affect its lifespan. Many roofs come with warranties that cover repair or replacement costs, and these can be a valuable resource if problems arise.
7. The Age of the Roof:
The age of the roof is also a factor to consider. Older roofs may not last as long as newer ones simply because they’ve had more time to succumb to wear and tear.
Proper insulation can help to extend the lifespan of a commercial roof. Insulation helps to protect the roof from extreme weather, which can cause premature aging and damage.
Proper ventilation helps to prevent condensation and moisture buildup, which can lead to rot and deterioration. Adequate ventilation also helps keep the roof’s temperature consistent, which can help extend its lifespan.
Poor drainage can lead to ponding water, damaging the roof, and shortening its lifespan. With drainage, water is quickly and efficiently removed from the roof, helping to keep it in good condition.
Making a decision on which commercial roof is right for your business can be difficult. However, understanding the lifespan of each type of roof can help you make a more informed decision. Consider the factors discussed in this article to help you choose the roof that best meets your needs.
Contact our roofing experts for a free estimate on your commercial roofing project. We will work with you to find the best solution for your needs and budget. Call our commercial roofing contractors today or complete our online form to start.