Which statement best describes a draw band?

• A. Used to connect transverse joints of ductwork.
• B. Keeps the duct from leaking by sealing ends.
• C. Acts as a structural brace for panels.
• D. An adjustable draw band.

Answer: (D)

Draw bands are adjustable straps used to pull duct sections into alignment during fabrication and installation. By wrapping the strap around the duct at the joint and tightening it, you apply even tension that seats the mating edges so the seam can be closed with rivets or screws. This helps ensure a tight, straight joint and reduces gaps that could leak air. It’s not the method that connects joints itself, nor a sealant to prevent leaks, nor a structural brace for panels. So, an adjustable draw band is the best description.