Metal roofs are a popular choice for Aussie homes thanks to their durability but are still susceptible to rust when they are exposed to the coastal environment.

Why Does My Coastal Metal Roof Rust?

Salt spray from the ocean air carries tiny chloride particles. These little buggers love to react with the iron in your metal roof screws and panels, creating everyone’s least favourite redhead – rust. This rust weakens the screws and eats away at the metal, leading to leaks and ultimately, roof failure.

Early Detection is Key: Roof Inspections

Ignoring rust on your roof is a recipe for disaster. The good news is that a professional roof inspection can identify the problem early before it spreads. These inspections typically involve:

• A thorough visual examination: A trained eye can spot even the tiniest signs of rust on screws, panels, and around flashings.

By identifying problem areas early, you can take action and prevent the rust from spreading further.

Your First Line of Defence: Replacing Roof Screws

Metal roof screws often take the brunt of the coastal assault. The good news is that replacing rusted screws is a relatively simple and cost-effective solution. Here’s why it’s important:

• Rust weakens the screws: Rusted screws can’t hold your roof panels down as securely, making them more vulnerable to wind damage and leaks.
• Rust spreads: Once a screw rusts, it can act like a little rusty bridge, allowing the rust to creep onto your roof sheets.

Prevention is Better Than Cure (and Rust)

While replacing screws can stop existing rust in its tracks, the best approach is to prevent it from happening in the first place. Here are some tips:

• Choose the right metal: Opt for metal roofs with a higher zinc content or a special rust-resistant coating specifically designed for coastal environments.
• Regular maintenance: Schedule regular inspections and maintenance, especially after big storms or periods of heavy wind.
• Keep your gutters clean: Blocked gutters can cause water to back up under the roof and accelerate rust formation.

By understanding the threats posed by coastal rust and taking preventative measures, you can keep your metal roof strong and secure for years to come.