When it comes to roofing materials, durability and longevity are often top concerns for property owners. However, another critical factor that should not be overlooked is fire resistance. In the event of a fire, the ability of a roof to withstand flames and prevent the spread of fire can make all the difference in minimizing damage and protecting lives. In this article, we’ll explore the burning capabilities of three popular roofing materials: EPDM, TPO, and Duro-Last, with a special focus on Duro-Last’s unique ability to self-extinguish.
EPDM (Ethylene Propylene Diene Monomer)
EPDM roofing, known for its durability and flexibility, is a synthetic rubber membrane commonly used in low-slope roofing applications. While EPDM offers many benefits, its fire resistance capabilities are relatively modest compared to other roofing materials. EPDM is classified as a Class C roofing material according to ASTM E108, indicating that it has a moderate resistance to fire spread.
In the event of a fire, EPDM may exhibit some resistance to flames, but it can also contribute to the spread of fire if not properly treated with fire-retardant additives. Property owners considering EPDM roofing should take precautions to ensure that fire safety measures are in place to mitigate the risk of fire damage.
TPO (Thermoplastic Polyolefin)
TPO roofing has gained popularity in recent years due to its energy efficiency, affordability, and ease of installation. Like EPDM, TPO is commonly used in low-slope roofing systems and offers moderate fire resistance. TPO is also classified as a Class C roofing material according to ASTM E108.
While TPO membranes may resist flames to some extent, they can still be susceptible to ignition and may contribute to the spread of fire if not properly treated with fire-retardant additives. Property owners should consult with roofing professionals to ensure that proper fire safety measures are implemented when choosing TPO roofing for their buildings.
Duro-Last
Unlike EPDM and TPO, Duro-Last roofing stands out for its exceptional fire resistance capabilities, particularly its ability to self-extinguish. Duro-Last roofing membranes are manufactured with a proprietary fire retardant additive called Flame Retardant Additive (FRA). This additive is engineered to react with heat and flames, forming a protective char layer that helps prevent further combustion and suppresses the spread of fire.
In independent fire testing conducted by Underwriters Laboratories (UL), Duro-Last roofing membranes demonstrated outstanding fire resistance properties, earning a Class A fire rating according to ASTM E108. This highest level of fire resistance signifies that Duro-Last roofing membranes are highly effective at preventing the spread of flames and reducing the risk of fire damage.
Additionally, Duro-Last roofing membranes are designed and prefabricated in a controlled factory environment, ensuring precise quality control and consistency in fire retardant performance. This attention to detail further enhances the reliability and effectiveness of Duro-Last roofing systems in protecting buildings from fire hazards.
In conclusion, while EPDM and TPO roofing materials offer various benefits for low-slope roofing applications, property owners should prioritize fire resistance when selecting roofing materials. Duro-Last roofing stands out as a superior choice due to its exceptional fire resistance capabilities, including its ability to self-extinguish and prevent the spread of flames. By choosing Duro-Last roofing, property owners can enjoy peace of mind knowing that their buildings are well-protected against fire hazards.