Aluminium Window Frame Corrosion Guide

Household aluminium frames are known for their strength, durability, and corrosion resistance. However, without regular maintenance, the risk of corrosion increases. This guide will help you understand aluminium corrosion, minimize the risk, identify early signs of corrosion, and suggest treatments.

 Why does aluminium corrode?

 Corrosion of aluminium is not related to the type or quality of the aluminium, but rather to the environment in which it is installed. As such, corrosion is not covered under warranty. When aluminium frames are exposed to the open air, a thin layer of aluminium oxide forms on the surface, acting as a protective barrier. However, crevices between the brickwork and the aluminium section can be difficult for the protective aluminium oxide to reach, increasing the risk of corrosion.

 Corrosion in windows, door, and security frames is caused when chloride salts accumulate in the crevices with moisture. These spaces stay wet for longer, exacerbating the effects of corrosion the longer they are left unaddressed. Airborne pollutants left on the aluminium frame surface can also contribute to corrosion.

 How to reduce the chance of corrosion

 Powder coated aluminium is highly durable and weather resistant. However, like all fixtures around the home, some maintenance is required to preserve their original appearance.

 Deposited grime absorbs moisture and holds it against the powder-coated surface of your frames, damaging the coating. To reduce the chances of corrosion, keep reticulation away from your aluminium frames. If you have garden beds in front of windows, keep soil and mulch well away from the frames and use drippers for irrigation to minimize water spraying onto the frames.

 Regular preventative cleaning of your aluminium frames provides the best chance of reducing the risk of corrosion. Preventative cleaning should be done:

 Every 6 months for residential areas, or

Every 3 months in coastal areas or near a swimming pool.

How to check for corrosion

 Look for the following signs of corrosion:

                                                             Early signs of corrosion.

Moisture rising from brickwork or limestone can cause corrosion over time.

                                     Untreated corrosion can lead to more severe damage.

What to do if you have corrosion

 If you already have corrosion, there are two options to treat it:

 DIY Treatment:

You can treat the corrosion yourself by following these steps:

a. Clean the affected area.

b. Remove any loose or flaking paint.

c. Apply a corrosion treatment product to the affected area.

d. Allow the treatment product to dry.

e. Paint over the treated area with a suitable paint for aluminium.

f. Maintain the area regularly to prevent further corrosion.

 Professional Corrosion Treatment Services:

If you prefer a professional touch or don't have the time to treat the corrosion yourself, consider hiring a trained technician to perform a comprehensive treatment service.

 Untreatable Corrosion:

If corrosion is beyond repair, it might be time to replace your window frames. Consult with a professional to remove and replace your windows and doors.