Acoustic Ducting (Low Noise)

What is Acoustic Ducting used for?

Acoustic Ducting is insulated, flexible ventilation ducting that reduces airflow noise in grow tents, grow rooms, and general home ventilation. It works for both intake and exhaust and is commonly used with fans, carbon filters, air-cooled lights, and silencers.

How is Acoustic Ducting different from regular silver ducting?

It includes a layer of polyester (Dacron) insulation that absorbs airflow noise and helps reduce “whoosh” sounds. Unlike fiberglass ducting, it’s more skin-friendly and doesn’t shed itchy fibres when cut or handled.

What sizes does Acoustic Ducting come in?

It’s available in 100mm, 125mm, 150mm, 200mm, and 250mm diameters—each in 5-meter boxed lengths. Use the matching clamp size for each duct. It fits standard fan/filter spigots and works with reducers if needed.

Can I join or extend Acoustic Ducting runs?

Yes—use a same-size duct joiner, clamp both ends, and seal with foil HVAC tape. One clean run is better for airflow and noise, but joined lengths work when needed if sealed properly.

How should I install Acoustic Ducting for best performance?

Stretch the ducting fully, avoid sharp bends, and keep the run as short as possible. Clamp the inner duct tightly to fittings, then seal the insulation jacket with foil tape for a clean, airtight connection.

Can I cut Acoustic Ducting to a custom length?

Yes. Use scissors/snips for the outer jacket and foil duct, and wire cutters for the internal helix. Always reseal the cut ends with foil tape to avoid leaks and fibre exposure.

Do I need clamps and tape for Acoustic Ducting?

Yes—use a duct clamp to secure the connection and foil HVAC tape to seal air leaks. Tape alone won’t hold under pressure; clamps plus tape give the most reliable, quiet result.

How much noise reduction can I expect?

It reduces duct-borne airflow noise significantly—especially compared to standard foil ducting. It won’t eliminate fan hum, but combining Acoustic Ducting with a silencer and a quality fan at low speed makes a big difference.

Why is my Acoustic Ducting still loud?

Check for long or compressed runs, sharp bends, high fan speeds, or unsealed joins. Also, if the fan itself is loud, ducting won’t fix that—look into fan quality, mounting, and silencers for more noise control.

Does Acoustic Ducting reduce airflow?

It adds slight resistance due to the insulation, but if installed properly—fully stretched, minimal bends—the impact is minimal and worth it for the noise reduction.

Does Acoustic Ducting help with condensation?

Yes—the insulation layer helps reduce external condensation. To avoid internal moisture buildup, keep runs supported and avoid routing through cold, damp spaces where warm humid air could collect.

Can Acoustic Ducting grow mould or collect moisture?

If there’s ongoing condensation or poor airflow, it can. Avoid low points where water can pool, and replace ducting if it becomes musty or moldy inside. Cleaning the inside of flexible duct is rarely effective.

Is Acoustic Ducting reusable?

Usually, yes. If it’s in good shape—not crushed, torn, or cut too short—you can reuse it in a new setup. Always inspect and reseal ends before reinstalling.

What if the outer jacket tears?

Minor tears can be patched with foil HVAC tape. If the insulation is exposed or damaged along the length, replacing the section is usually better for safety and performance.

How should I store unused Acoustic Ducting?

Keep it boxed and dry. Avoid storing it where it could be crushed or exposed to moisture before installation. Each length is individually boxed to protect it during storage.