The problem of vibrating ceilings and structural noise
Galvanized steel ducts are characterized by their heavy weight and extreme engineering rigidity. If they are attached using cheap, unprofessional materials or without vibration-absorbing elements, all the hum from the heat recovery unit's motor transfers directly into the house's structures. You could install the most expensive and quietest ventilation unit on the market, but due to poor mounting, your plasterboard ceilings will act like a giant speaker, emitting an irritating low-frequency drone every night.
Saving money on mounting hardware often ends in the deformation of the entire system. If there are too few attachment points or if simple perforated tape is used, the heavy metal pipes will eventually sag over time. This physical sagging creates enormous tension at the fittings and connectors, which can easily lose their airtightness, allowing expensive fresh air to leak into the unheated attic.
Silent and absolutely durable engineering peace
Professional mounting elements act as invisible shock absorbers for your ventilation system. By using special duct clamps with EPDM rubber inserts, the pipes are completely acoustically separated from the building's ceiling. The rubber successfully absorbs all micro-vibrations, so even when the most powerful fans operate at maximum mode, absolute silence is maintained in your living spaces.
A firmly and densely secured trunk line guarantees decades of airtightness. Correctly selected threaded rods and metal profiles keep the system in a perfectly horizontal position, preventing it from swaying or shifting. This allows the main heat recovery units to operate without any additional resistance, while you enjoy clean air without any fear regarding the longevity of your engineering systems.
Vibration reduction by up to 15 dB(A) – high-quality rubber insulation in the clamps absorbs low-frequency resonance, making the ventilation system completely inaudible in your living rooms.