What type of joint is typically used to securely connect two pieces of ductwork?

The slip joint is an effective method for connecting two pieces of ductwork because it allows for easy assembly and disassembly, which is particularly useful during installation or maintenance. This type of joint consists of one duct section that fits into another, providing a snug fit that minimizes air leakage. This is important in HVAC systems as maintaining the integrity of airflow directly impacts the system's efficiency and performance.

In addition to the practical advantages, slip joints are designed to accommodate slight movement and expansion of ductwork due to temperature changes, which helps prevent damage to the duct system. The ease of installation and the tight seal they provide make slip joints a standard choice in the industry for connecting ductwork securely and effectively.