roof rust kenmore

How to prevent rust

Our inspectors at Dedant see several regularly occurring faults with houses. However, one of the most common and most damaging is rust. You should know how to prevent rust in order to protect your home.

Rust is what occurs when metal is exposed to oxygen and moisture. It causes an orange-brown discolouration that erodes the metal, causing it to become brittle and prone to breaking. Rust has even been known to cause bridges to collapse.

You can take these steps to prevent rust in the metals around your home.

An example of rust beginning to form.

1)     Keep metals dry

Rust needs the right conditions to occur – namely, a high amount of moisture and exposure to the sun.

As such, you should endeavour to keep metals dry. Clean all your metal items and surfaces as clean as possible.

One of the most common places to find rust is your gutters, because water gets caught there and causes metal to oxidise, producing rust.

Thus, you should keep your gutters clean to prevent a build-up of moisture.

Gutters are a key source of rust, as they are one of the more common places for moisture to meet metal.

2)     Keep your metals clean

When metals get dirty, generally it is from things like mud or dirt. Mud and dirt can hold water, so when they stick to metal it creates moisture that can produce rust.

By keeping metal clean from dirt and mud, you are keeping them free from another source of moisture.

3)     Paint the metals around your home

If you’re looking to prevent rust, using a paint to insulate the metal from oxygen and moisture is a wise choice.

However, you must choose the correct type of paint. This is because certain paints, such as a water-soluble paint, only makes rust worse.

Instead, consider using rust proofing paints or zinc-rich primers. When applied, these products are specifically designed to stop oxygen and water from touching the metal underneath.

4)     Avoid damage

When metal is scratched or scraped, this removes any sort of coating from the surface and further exposes it to the elements.

Not only that, but the smoother the metal surface, the less water it can hold.

Scratches and cuts on the metal surface hold and trap water, which is why you should endeavour to keep your metal surfaces free from such damage.

The more damaged the roof, the more likely it is for rust to occur.

5)     Scrape away rust early

Rust spreads quickly, but you should be able to remove it if you act fast enough.

You can do this through physically scraping it off using a sander, grinder or oscillating tool. Alternately, there are chemical options you could use.

Ultimately, whatever method you use, the most important thing is to be vigilant. Get in early and get rid of rust before it becomes a larger problem.

Contact us

If you are buying or selling a house, contact Dedant from a building inspection today and we will identify easily seen areas where rust exists.

Call us on 07 3807 0122 or contact us on out website to book.

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