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How to Install a Skylight on a Corrugated Metal Roof

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Corrugated metal roof with installed skylights maximising natural light in Sydney home.

Start by measuring and marking the skylight opening on your roof, ensuring it sits between the roof’s corrugation peaks. Cut carefully through the metal sheeting, install proper flashing, and seal with weather-resistant materials to prevent leaks.

Adding a Skylight to a Metal Roof?

Cutting into corrugated metal and keeping it watertight takes the right flashing and sealing. Our Sydney team can install your skylight without the leak risk.

What Is Skylight Installation on Metal Roofing and Why Does It Matter?

High-quality roof installation in Sydney with Colorbond, metal, and tile roofing materials for lasting protection.

1. Installing a skylight on corrugated metal roofing requires precise cutting between the roof ridges to maintain structural integrity.


2. Proper flashing installation creates a waterproof seal that prevents moisture infiltration and potential ceiling damage.


3. Metal roofs expand and contract with temperature changes, so flexible sealants accommodate this movement.


4. Professional installation ensures compliance with Australian building codes and manufacturer warranty requirements.


5. Correctly positioned skylights maximise natural light while minimising heat gain in Sydney’s climate.

Why Should You Invest in Professional Skylight Installation?

leaking skylight repair sydney​

Natural lighting reduces electricity costs by up to 30% during daylight hours across residential properties. Expert installers understand Colorbond steel properties and use compatible materials that won’t cause galvanic corrosion.

💡 Need help?

We offer professional metal roof repair sydney to help you achieve your goals.

Tomkat Roofing’s metal roofing specialists ensure seamless integration with existing roof profiles and gutter systems. Poor installation leads to costly water damage, requiring full roof section replacement rather than simple repairs. Licensed professionals carry insurance protection, safeguarding your property investment throughout the installation process.

How Does Tomkat Roofing Handle Skylight Installation Differently?

Roofing project in progress, showcasing expert craftsmanship by Tomkat Roofing.

Our licensed team pre-inspects roof structures to identify potential issues before cutting, preventing costly mid-project surprises. We exclusively use Australian-made Velux skylights with 10-year warranties, specifically designed for harsh coastal conditions. 

Every installation includes custom flashing manufactured to match your exact roof profile and Colorbond colour Get in touch with our award-winning team for transparent fixed-price quotes with no hidden costs. Post-installation inspections and detailed maintenance guidance ensure your skylight performs flawlessly for decades.

Ready to transform your home with professional skylight installation? Contact with Tomkat Roofing today for your free, no-obligation inspection and quote from Sydney’s award-winning metal roofing specialists.

Frequently Asked Questions

Can you install a skylight on a corrugated metal roof?

Yes. It is done regularly, but it needs the opening cut between the corrugation peaks, the right flashing kit for the profile, and careful sealing. Done properly, a metal roof takes a skylight well.

The opening is measured and marked to sit between the ribs, the sheeting is cut cleanly, a purpose-made flashing is fitted to match the corrugated profile, and everything is sealed with weather-resistant materials to keep water out.

They should not, if the flashing suits the roof profile and the sealing is done correctly. Most leaks come from the wrong flashing, poor sealing, or a rushed install, which is why the flashing detail matters most.

It is not recommended. Cutting corrugated metal accurately, fitting profile-specific flashing, and sealing it watertight at height is skilled work, and mistakes show up quickly as leaks. A licensed roofer gets it right the first time.

Both fixed and ventilating skylights can be fitted, with the flashing chosen to match the corrugated profile. The right choice depends on the room, the roof pitch, and how much light or ventilation you want.

Get Your Skylight Installed Right

A skylight on a metal roof is only as good as its flashing. Our team cuts, flashes and seals it properly so it stays watertight for years.