What Is The Proper Way To Apply HVAC Tape?

Whether you are working with a foil or film tape, applying to sheet metal, flex duct, or rigid duct material, knowing the proper way to apply the tape can make the difference between failure and long-lasting performance. Follow along to learn how HVAC tapes are designed to be applied for the best results.

Step 1: Cut or tear the length of tape that you need if it is short enough to handle. If sealing a longer length of material, apply straight from the roll, only unrolling a few inches at a time as you apply to make handling easier.

Step 2: Remove the liner of the tape starting from the end you are using. This can be done quickly and easily if the tape has a split liner, or can be done with a traditional liner by folding down a corner of the tape and peeling back the liner as you apply the tape.

Step 3: Apply the tape, centered over the seam you are sealing, allowing it to stay unwrinkled over smooth surfaces and conform to uneven or textured surfaces, such as flex duct or reflective insulation. Continue to pull off the liner as you apply the tape.

Step 4: If applying tape directly off the roll, cut or tear only how much you need to ensure full system closure and no gaps or leaks. Excess tape tabs or tape wrapping leads to tape waste, which can add up in costs.

Step 5: Use a squeegee to firmly wipe down the tape. Thoroughly wiping down the tape allows for maximum surface contact for secure adhesion and a permanent bond. Don’t skip this important step!