What is commonly used to connect various sections of ductwork?

Mechanical fasteners are commonly used to connect various sections of ductwork because they provide a secure and reliable joint that can withstand varying pressures and environmental conditions. These fasteners can include screws, bolts, and rivets that firmly hold the duct sections together, reducing the risk of air leaks, which can compromise system efficiency.

In addition to their strength, mechanical fasteners allow for easy assembly and disassembly of ductwork. This is particularly beneficial for maintenance and repairs, as ducts may need to be taken apart for cleaning or replacement. The mechanical fastening method is widely accepted in the industry for its durability and functionality compared to options like adhesive, which may not provide the necessary strength and can degrade over time, or tape, which might not hold up under high airflow conditions. While metal brackets can assist in supporting ductwork, they are typically used in conjunction with mechanical fasteners rather than as the primary method for connecting sections.