Top 5 Myths About Tubular Skylights — Debunked

Tubular skylights have become a popular way to brighten homes without major renovations. But despite their benefits, a lot of misinformation still circulates.

Here are the top five myths — and the facts you need to make an informed choice.

Myth 1: They Don’t Deliver Enough Light

The truth: Modern tubular skylights use highly reflective tubing that channels a surprising amount of daylight, even on cloudy days.

Depending on tube diameter and placement, a single unit can illuminate up to 10–20 square metres.

Illustrative Example Only: A 250mm tubular skylight in a hallway provided more usable light than three LED downlights.

Myth 2: They Always Leak

The truth: When installed correctly with high-quality flashing systems, tubular skylights are watertight.

Leaks typically occur only when corners are cut during the installation process. Choosing a professional installer and compliant materials ensures long-term weather protection.

Myth 3: They’re Only for Flat Roofs

The truth: Tubular skylights can be installed on a wide range of roof types — including pitched tile, corrugated iron, and membrane roofs. The key is using the right flashing kit and pitch adapter.

Myth 4: They Make Rooms Too Hot

The truth: Unlike older skylight designs, tubular models are engineered for minimal heat transfer. Features like double glazing, Low-E coatings, and sealed diffusers maintain comfortable temperatures year-round.

Myth 5: They’re Expensive to Run or Maintain

The truth: Tubular skylights are passive systems. They require no electricity to operate and very little maintenance beyond occasional cleaning of the rooftop dome.

They can even save you money by reducing daytime lighting costs.

Final Thoughts: Clarity Over Assumption

Tubular skylights are simple, efficient, and surprisingly powerful daylight solutions. When you understand how they really work, it’s easier to see why so many homeowners are choosing them.

Want to explore options for your space? Share your project and we’ll connect you with a trusted local expert.