Bituminous expansion joint sheets, also known as bitumen board or bitumen joint filler, are commonly used in construction to accommodate movement and prevent damage in structures such as bridges, roads, and buildings. They are designed to absorb thermal expansion and contraction, as well as other types of movement, without causing stress or cracking in the surrounding materials.

Commercial-grade bituminous expansion joint sheets are typically made from a mixture of bitumen, fillers, and reinforcing fibers. The specific composition may vary depending on the manufacturer and product specifications. These sheets are often manufactured in different sizes and thicknesses to suit various applications.

When selecting a commercial-grade bituminous expansion joint sheet, it is essential to consider factors such as the expected movement, load-bearing capacity, temperature variations, and chemical resistance requirements of the project. Consulting with a construction engineer or supplier specializing in construction materials can help you determine the most suitable product for your specific application.

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