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    In praise of built up felt roofing

    March 2023


Built-up felt roofing, also known as BUR, is a traditional method of flat roofing that has been used for decades. It is a cost-effective and reliable option that offers several benefits to homeowners, property managers, and contractors. In this blog, we at Proteus Waterproofing, discuss the advantages of built-up felt roofing and why it remains a popular choice for flat roofing.

Firstly, one of the primary benefits of built-up felt roofing is its durability. It consists of multiple layers of roofing felt, which are adhered to the roof using hot tar. These layers create a robust and waterproof barrier that can withstand extreme weather conditions, including high winds, rain, and even hail. The use of multiple layers also provides a cushioning effect, which helps to protect the roof from damage caused by foot traffic.

Another advantage of built-up felt roofing is its versatility. It can be applied to various types of flat roofs, including those made of concrete, metal, or wood. This flexibility makes it an ideal choice for both new construction projects and renovation work. Additionally, built-up felt roofing can be easily customized to meet the specific requirements of a particular project, such as adding insulation or incorporating additional layers for extra durability.

Built-up felt roofing is also an affordable option. Compared to other flat roofing options, such as metal roofing, it is less expensive and competes favourably with single ply. This is because the materials used in built-up felt roofing are widely available and easy to install. Moreover, because of its durability, built-up felt roofing requires minimal maintenance, which can also save homeowners and property managers money in the long run.

In addition to its durability, versatility, and affordability, built-up felt roofing can also be fire-resistant. The bitumen used in felt is combustible, however modern felt membranes can now be manufactured with fire additives or fire-resistant cores to ensure they can meet the highest flat roofing fire standard set, BroofT4, making them less likely to catch fire. This is an important safety consideration, especially in buildings where flammable materials are present.

Lastly, built-up felt roofing can be an eco-friendly option. The materials used in its construction, such as roofing felt and tar, can be recyclable. Additionally, the insulation that is often added to a built-up felt roof system can improve the energy efficiency of a building, reducing the amount of energy required for heating and cooling.

Built-up felt roofing is durable, versatile, affordable, can be fire-resistant, and provides an eco-friendly option for flat roofing. Its numerous benefits make it a popular choice for both residential and commercial properties. As with any roofing option, it is of course essential to have a professional installation to ensure its longevity and effectiveness.



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