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Rust treatment of ventilation ducts

Rust can be detrimental by premature deterioration of metal surfaces and by residues that are released and dispersed into the ventilation system.

The treatment of rusty surfaces consists of applying a product that stops the development of rust or sanding and repainting rusty surfaces.

How does rust form in ventilation ducts?

Rust is caused by moisture in contact with the metal surfaces of your ventilation ducts. Almost everything made of metal that has not been treated against rust can be a victim of this phenomenon and the damage can lead to more or less expensive repair costs.

The air transported through the ducts can sometimes be very humid, to such an extent that, by condensation, water vapor forms on the walls of the latter. As these water vapors stagnate inside the metal pipes, the rust will gradually eat them away.

How to detect rust in ventilation ducts?

Most of the time, detecting rust in the ventilation ducts is done by chance, when the specialists are going to operate on other works in this area. Indeed, rust, as long as it has not completely eaten away at the metal, has no visible effect on the outside of the ducts. If there is no work to be done at this level, you may never detect the spread of rust in time.

It is for this reason that we strongly recommend a regular inspection of the ventilation ducts. This is the only way to quickly detect the beginning of rust and remedy it before the metal is completely damaged.

How to deal with rust in ductwork?

To treat rust in ducts, we use different processes. One of our frequently used techniques consists in applying a specific product in the ducts in order to slow down the spread of rust.

Another method is to sandblast every square inch of rusted surface before repainting. If the ducts are completely rusted through, replacement of the damaged areas may be necessary.