It irritates when something as noisy as your air conditioning or heating system is constantly running. It can be distracting and even keep you from getting a good night’s sleep. There are many other reasons you might want to soundproof your HVAC unit. Maybe you live in an apartment, and you don’t want the people below you to be able to hear the noise it makes, or maybe you’re just trying to keep the noise from interfering with your peace during work. You may be able to avoid the problems by simply soundproofing your HVAC system. In this article, we will discuss what materials and methods work best for soundproofing an HVAC unit. Keep reading to learn more.

1. Upgrading the HVAC System

An HVAC system might be old, worn out, or prone to vibrations exaggerated by the open space in a vent. You can reduce or eliminate the sound by upgrading to a new and modern HVAC system that uses current technology. In addition, you can also look for a system that features variable-speed blowers to help reduce the sound of your HVAC system further. You can create a quieter and more peaceful environment by taking these steps.

2. Using Sound Baffles

Sound baffles are boxes placed around the HVAC unit, and they work to absorb the sound waves produced by the equipment. The boxes are responsible for making the sound in the system travel a long distance. In the process, most of the sound waves are absorbed in the box and are significantly reduced by the time they reach their eventual destination. The boxes usually have convoluted ducts or materials such as foam lining inside their walls. An enhanced baffle box is reinforced with a flexible duct along the crooked path before sealing it.

3. Installing Soffits

Soffits are usually made of medium-density fiberboard (MDF) that is already insulated. The soffits can be used alone or with some layers of drywall called viscoelastic damping that are added between them, particularly for the rooms that require a higher level of soundproofing. Most importantly, for the vents and ducts directly exposed to sound, the soffits are fitted with a flexible duct that creates many bends that absorb sound.

4. Use of Advanced Acoustic Vent

This is a unit that has a built-in acoustic noise reducer. The design allows ventilation of air through the walls of a building that has a sound-absorbing lining fitted. Without necessarily tampering with the airflow, the lining significantly minimizes how sound penetrates through the vent.

5. Using Flexible Ducts

Flexible ducts reduce the sound caused by air that leaks through a vent. They are usually made of thin materials, making it easy for them to be used even at sharp corners of buildings. The flexible ducts have several bends that make it difficult for sound to travel when there is airflow within the duct. Every time the sound hits a bent surface, it is partially absorbed.

6. Reducing Sound at the Source

A homeowner should consider the application of a sound vibration-damping product or sound deadening spray material on the interior and exterior surfaces of the system that is producing the sound. This helps in the prevention of the leaking sound vibrations that are created by the unit. The vibrations are immediately stopped at the source and not allowed to travel through the ductwork into the building.

7. Installing Duct Liners

Combating the noise transmitted to other areas of the building can be achieved by lining the inside walls of an air vent or ductwork with any sound-absorbing material like foam. Placing this inside the ductwork requires a suitable liner composition to prevent the lining material from blowing fibers into the building. One should consider using a lining material that is safe for heating and one that does not release trapped particles. Melamine foam is recommended due to its low flammability level, excellent thermal insulation characteristics, and high sound absorption properties.

Your Local Resource

If you are a resident of Joplin, MO and you’re considering how to soundproof your HVAC unit, reach out to our experts at [company name]. Our team of technicians would be happy to discuss your options with you and provide you with a free estimate for the soundproofing process and materials. Besides soundproofing, our professionals are knowledgeable in all areas of HVAC repair, maintenance, replacement, and installation. Of course, we handle the full range of heating, cooling, and indoor air quality equipment. We can help you find the best solution for your home or business. Call us today for an appointment.


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