How To Join Hvac Duct

A complete guide and ways to join HVAC duct
  • Author: Amanda Arnold
  • Posted On: October 29, 2022
  • Updated On: August 21, 2023

You’ll work with HVAC ductwork, whether constructing a new basement or installing a new heating and conditioning system. To provide heat in the winter and air conditioning in the summer, air must circulate through ducts in your home.

Round or rectangular sheets of metal are frequently used to make ducts. Understanding how to connect ductwork if you’re working with it in your home is crucial to maximize efficiency. Air is distributed throughout the house by connecting these components.

Understanding how to connect the ductwork properly is crucial for ensuring appropriate connections, reducing leaks, and increasing efficiency.

Things To Consider Before Joining HVAC Ducts

If you have the right knowledge, connecting ducts can be simple. You must adhere to guidelines carefully when connecting HVAC ducting in your home. The right move could prevent your property from having a functional heater or air conditioner.

Because so much air isn’t flowing properly, you can even pay hundreds of dollars more in energy bills. Your home will be more energy-efficient if you carefully assemble the ductwork, which will also save you from having to do numerous repairs in the future.

Always read the instruction booklet with any ducting you plan to install in your home. Verify that the insulation is enough. You risk having insufficient insulation, which may cause heat loss when you run your ductwork through strange places like attics and crawl spaces.

Make sure you plan properly to avoid this. Ensure that the HVAC ductwork’s connecting joints are correctly sealed. Although rectangular HVAC ductwork is sometimes more practical to install, the round duct is likely more effective at supplying the ideal climate.

It is simpler to fit squared edges into the required places. Avoid purchasing ductwork that is too small. Both noise and inefficiency could result from this.

Buy High-Quality Ducts

It is important to pick a quality that will last when buying ducting materials to install in your home. It’s crucial to purchase from a business that offers high-quality goods and is knowledgeable in its field.

Do your study before buying the stuff. Learn more about the ideal duct type for your house. A particular type of ductwork might function well in one home but not another.

Use Foil Tape For Better Sealing

Anyone who first educates themselves can connect ducts in a home because it is a relatively easy operation to undertake. Read the instruction handbook and put on the necessary safety gear before installing ducting in your home.

You will prevent much heartache in the future by adhering to these few straightforward steps. To seal the ducts tightly, use foil tape. Ducts are joined together with s-cleats or drive clips, and foil tape works best for sealing them.

Although duct tape can also be utilized, the heat will weaken and brittle it. The foil tape is essentially an aluminum adhesive strip, which makes it resistant to deterioration over time.

Steps To Join HVAC Duct

Consider Standard Duct Pieces

For the connection, pick specific duct parts with crimped and uncrimped ends. If one end is not already crimped, you must do so with a crimp tool, which resembles a pair of scissors. With the crimp tool pointed into the duct, position the sheet metal in the space between its two blades.

The crimping tool should be squeezed, released, and taken out. As you move the tool along the duct hole, squeeze and release the tool repeatedly until the crimped duct end is produced.

Attach Crimped Ends To Next End

Round ducts are joined together by their crimped ends, which should go into their uncrimped counterparts.

One or two flat-head screwdrivers can assist one duct into another if the ducts are challenging to attach. Apply foil tape to the duct connection’s seam. To stop air leaks, smear the tape.

Use Self-Tapping Screws

To create a strong connection between the two ducts, insert a lengthy self-tapping sheet metal screw where they overlap. Tuck two more screws into the seam, distributing them equally apart.

The three screws will prevent lateral movement or separation of the two ducts at the newly formed seam.

Avatar photo
Author: Amanda Arnold

Amanda has been working with ConstructionHow since 2021. Her experience spans over 5 years in the creative niche such as home decor and trends, landscaping, renovations, and custom architectural values. As a home designer expert, she has a keen eye for the latest home improvement trends with accurate facts that readers find impossible to ignore. Being invested in home-building trends is how she has gained her lucrative expertise exploring more to bring a positive ambiance for all homeowners (and even tenants!). Currently, she lives in a beautiful beach home, a source of fascination for her.