What is the minimum width of metal straps used for supporting ducts in one-and two-family dwellings and townhouses?

Prepare for the North Carolina Mechanical Code Exam with questions, flashcards, and explanations to boost your confidence. Master the code and increase your chances of passing!

The minimum width of metal straps used for supporting ducts in one-and two-family dwellings and townhouses is established to ensure adequate support and secure fastening of ducts. A width of 1 inch provides a balance between strength and flexibility, allowing the straps to securely hold the ductwork while minimizing potential damage or deformation during installation or operation. Straps that are too narrow may risk bending or failing under the weight of the duct, while wider straps could be unnecessarily cumbersome and more difficult to work with in tight spaces. This standard width helps maintain safety and reliability in the mechanical systems of residential buildings, ensuring that the ductwork remains properly supported and aligned throughout its lifespan.

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