Ductwork Installation

What is the purpose of sealing ductwork?

• To prevent leaks and maintain efficient airflow

• To increase the rigidity of the ductwork

• To reduce the noise from the HVAC system

• To improve the aesthetics of the installation

What is the most commonly used material for ductwork?

• Fiberboard

• Flexible duct

• Sheet metal

• Aluminum foil

Why should ductwork be insulated in unconditioned spaces?

• To prevent moisture damage to the ductwork

• To improve the efficiency of the HVAC system

• To reduce noise transmission

• To comply with building codes

Why is using building joists as ductwork no longer allowed?

• It can lead to mold growth and wood rot

• It reduces the overall structural integrity of the building

• It increases the risk of fire hazards

• It causes excessive noise in the space

What is the advantage of using flexible ductwork?

• It is more durable than other types of ductwork

• It is easier to install in tight spaces

• It provides better insulation

• It has a longer lifespan

How can excessive sags in flexible ductwork affect airflow?

• They increase air velocity and improve airflow

• They have no effect on airflow

• They reduce air velocity and restrict airflow

• They cause turbulence and decrease air quality

What is the recommended way to support flexible ductwork?

• Leaving large spaces between supports

• Using only one support at the bend

• Stretching it tightly between supports

• Using additional supports to prevent sags

Why should bends in ductwork be gradual?

• To increase air velocity and improve airflow

• To reduce the risk of leaks

• To make the installation look more aesthetically pleasing

• To save space in the installation

What can happen if flexible ductwork is crimped or crushed?

• It improves the efficiency of the HVAC system

• It reduces noise transmission

• It increases the rigidity of the ductwork

• It restricts airflow and reduces performance

What is the purpose of using a 45 or 90 degree elbow in flexible ductwork?

• To increase the flexibility of the ductwork

• To reduce the risk of leaks

• To improve the aesthetics of the installation

• To maintain proper airflow and prevent restrictions