Tar and gravel roofing, also known as built-up roofing (BUR), has been a popular choice for commercial and low-slope residential buildings for decades. This traditional roofing system consists of alternating layers of bitumen (tar) and reinforcing fabrics, topped with a layer of gravel or stones. Its durability and effectiveness in waterproofing make it a reliable option for many property owners. In this article, we will explore the benefits, installation process, maintenance tips, and common concerns associated with tar and gravel roofing.
One of the primary benefits of tar and gravel roofing is its durability. When properly installed, this roofing system can last 20 to 30 years, providing excellent protection against harsh weather conditions, including rain, snow, and UV rays. Additionally, the gravel layer helps to protect the underlying materials from physical damage while also providing a weighted barrier against wind uplift. This makes tar and gravel roofs particularly suitable for areas that experience heavy winds or severe weather.
The installation of a tar and gravel roof typically involves several steps. First, the roofing contractor will prepare the roof deck and ensure it is clean and free of debris. Next, layers of hot tar are applied, followed by reinforcing fabrics, and additional layers of tar. Once the desired amount of layers is achieved, gravel is spread evenly over the surface to protect the roof and provide a finished look. While this process requires a skilled contractor, the end result is a seamless, durable roofing system that can offer long-lasting protection.
Maintenance is crucial to ensuring the longevity of a tar and gravel roof. Regular inspections should be conducted to identify any potential issues, such as cracks or loose gravel. Additionally, keeping gutters and drainage systems clear is vital in preventing water accumulation, which can lead to leaks or structural damage. Property owners should also be cautious about walking on the roof to avoid disturbing the gravel layer or damaging the membrane beneath.
Despite its many advantages, there are some concerns associated with tar and gravel roofing. One of the primary issues is the potential for leaks if the roof is poorly installed or not adequately maintained. Furthermore, the installation process can be labor-intensive and may require specialized skills, which can drive up the cost. Lastly, some homeowners may not appreciate the aesthetic of a gravel roof, as it can appear somewhat rustic and may not suit all architectural styles.
In conclusion, tar and gravel roofing remains a trusted and effective solution for many buildings, particularly those with low slopes or commercial applications. By understanding its benefits, installation processes, and maintenance requirements, property owners can make informed decisions about whether this roofing system is right for their needs. As always, consulting with a qualified roofing contractor will provide valuable insights and ensure the best possible outcome for your roofing project.