How Long Does a Commercial Roof Last?
In this article, we explore the factors that affect the longevity of commercial roofs. From how long a commercial roof should last to the different types of commercial roof replacements, this article will provide in-depth insights into commercial roofing life expectancy.
How Long Should My Commercial Roof Last?
A well-installed and properly maintained commercial roof can last for several decades. However, the exact lifespan of a commercial roof depends on various factors, such as the roof type, materials, installation quality, climate, and maintenance.
Here are some average lifespans for popular commercial roof types:
- Metal Roof: A metal roof, like premium heavy gauge materials, can have a lifespan of 30 to 50 years. Metal roofs are favored for their durability, resistance to harsh weather conditions, and low maintenance.
- Built-Up Roofing (BUR): Built-Up Roofing systems consist of multiple layers of asphalt and felt or bitumen. These roofs are known for their durability and longevity. A BUR roof can last between 15 to 30 years with proper installation and regular maintenance.
- Modified Bitumen: Modified Bitumen roofs are similar to BUR roofs but incorporate added polymer modifiers, such as APP (Atactic Polypropylene) or SBS (Styrene-Butadiene-Styrene). These modifiers enhance the roof’s flexibility and resistance to temperature extremes. Modified Bitumen roofs have a life expectancy of around 20 to 30 years.
- Ethylene Propylene Diene Monomer (EPDM): EPDM roofs are made from a synthetic rubber compound and highly resistant to UV radiation and ozone exposure. EPDM roofs can last between 20 to 30 years when properly installed and maintained. However, factors like punctures, seam failures, and weather conditions can affect their lifespan.
- Thermoplastic Olefin (TPO): TPO roofs are single-ply membranes that offer excellent resistance to UV radiation, chemical exposure, and punctures. With proper installation and regular maintenance, TPO roofs can last between 20 to 30 years. However, the thickness and quality of the TPO membrane can impact its longevity.
- Polyvinyl Chloride (PVC): PVC roofs are another type of single-ply membrane known for their durability and resistance to chemicals, UV radiation, and punctures. Well-maintained PVC roofs can have a life expectancy of 20 to 30 years, although thicker membranes can potentially extend their lifespan.
Factors That Affect Commercial Roof Life Expectancy
- Commercial Roofing Materials: Choosing the right commercial roof material is essential for prolonging its lifespan. Premium heavy materials, such as metal roof systems or high-quality SPF roofing, can lead to extended life expectancies. On the other hand, low-quality materials may require frequent repairs or even replacements, making them less preferable for commercial roofs.
- Installation Quality: A properly installed commercial roofing system is less likely to encounter issues that may shorten its lifespan. It’s important to hire experienced professionals to ensure the highest quality installation. This helps prevent structural problems and guarantees that the roof system correctly meets its stated lifespan.
- Climate and Weather Conditions: The lifespan of a commercial roof can be significantly affected by the local climate and weather conditions. Harsh weather conditions, such as extreme temperatures, heavy snow, and powerful storms, can cause damage to the roof and accelerate its deterioration. Commercial roof types designed to withstand specific weather conditions, such as green roofs and slope roof systems, can offer increased resistance to weather-related damage and prolong service life.
- Quality of Drainage System: An effective drainage system is essential for preserving the life of a commercial roof. Standing water and poor drainage can weaken the roof membrane, ultimately shortening the roof system’s life. Low-slope roofing systems and commercial skylights must have efficient drainage components, such as sloped insulation, scuppers, and internal drains, to prevent water damage and extend the roof’s life.
- Hybrid Systems: Commercial roofs that utilize hybrid systems can benefit from increased durability and longer service life due to the combination of roof types. Wall interface, for instance, joins the roofing with the building’s exterior walls, allowing for seamless insulation and weather protection. As a result, hybrid systems provide the best of both worlds, contributing to a long-lasting and efficient commercial roof.
Understanding commercial roof life expectancy is important, but it’s equally as critical to know when to repair or replace. Take a deeper dive by reading this article today.
Commercial Roof Replacements Types
No matter what, there will come a time when your property needs a new commercial roof. When it comes to commercial roof replacements, property owners have a wide variety of options. Each commercial roof type provides different benefits and levels of protection for the building.
Commercial Roof Coatings
Commercial roof coatings provide a cost-effective and practical solution for roof replacement. They extend the lifespan of existing roofs by creating a seamless and watertight barrier that protects against leaks and UV radiation. These coatings also reduce heat absorption, lowering energy costs. Moreover, they offer environmentally friendly options, contributing to sustainability efforts.
Slope Roof Systems
Slope roof systems are a common choice for commercial roofs because they help to shed water, snow, and debris off the building. There are a variety of different slope roof materials available, including metal roofs and APP-modified bitumen. Metal roofs are known for their durability and energy efficiency, while APP-modified bitumen provides excellent waterproofing capabilities and UV resistance.
Wall interfaces in commercial roofing systems play a crucial role in connecting different roof types to the building’s walls. This ensures a seamless and weather-resistant transition between the commercial roof and the structure.
Energy Efficient Roofing & Construction: Your Source for Commercial Roof Replacements and Maintenance
Whether you’re in need of a commercial roof replacement or are interested in upgrading your current roof, it’s crucial to work with an experienced and reputable commercial roofing contractor. Contact the experts at EERC to get started today.
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Energy Efficient Roofing & Construction is a full-service roofing and general contractor that serves the Dallas-Fort Worth metroplex with top-quality labor and materials.