Opening versus Fixed Roof Windows

Once you have decided that a Roof Window is the right solution, the next question is whether you need a Fixed or Opening model.

Both provide natural daylight and sky views, and both can be fitted with blinds.

The key difference is that an Opening Roof Window also provides ventilation. By allowing warm, humid air to escape from the highest point of the room, it can improve comfort and airflow throughout the home. Opening models generally require a flyscreen.

Splendid Skylights Electric Opening Roof Windows include a heavy-duty powder-coated "Ember-Guard" mesh screen as standard, providing improved resistance to insects, embers and household pests.

Where ventilation is unnecessary, a Fixed Roof Window is often the preferred choice. For many homes, a combination of both delivers the best result.

Fixed Roof Windows

A Fixed Roof Window is designed purely to introduce natural daylight. With no opening sash, flyscreen or operating hardware, it provides a simple, robust and fully sealed solution. It may also be the preferred or only practical option in bushfire-prone areas, high-wind regions and other exposed locations.



They are often chosen for: 

  • Hallways 
  • Stairwells 
  • Living rooms with adequate ventilation 
  • Cathedral ceilings where ventilation is not required 
  • Rooms where daylight is the primary objective 

With fewer components and no operating mechanisms, Fixed Roof Windows are typically the most economical option.

Opening Roof Windows

Opening Roof Windows combine natural daylight with natural ventilation.


They are particularly popular in: 

  • Kitchens 
  • Bathrooms and ensuites 
  • Laundry rooms 
  • Living areas with high ceilings 
  • Stairwells 
  • Attic and loft conversions 

When positioned correctly, they can help release trapped heat and improve airflow throughout the home.

Manual versus Electric Opening

Manual Opening Roof Windows are a cost-effective solution where the window can be reached directly or operated using an extension pole.

They work particularly well in attic rooms, loft conversions, cathedral ceilings and shallow light shafts. They become less practical as the ceiling height or shaft depth increases.

For standard ceilings, deeper roof cavities and out-of-reach installations, Electric Opening Roof Windows are generally the preferred option.

Traditionally, electric operation carried a significant price premium over manual roof windows. While this remains the case for some premium brands, the gap has narrowed considerably as newer alternatives have become available.

Today, Electric Opening Roof Windows are increasingly becoming the default choice for many homeowners. The convenience of remote-controlled ventilation, combined with more competitive pricing, means electric operation is no longer reserved for premium projects alone.

Which Should You Choose?

Choose a Fixed Roof Window when your primary goal is natural daylight and the room already has adequate ventilation.

Choose an Opening Roof Window where ventilation, heat release or moisture control are important considerations.

A common solution is to use Opening Roof Windows in kitchens, bathrooms and main living areas, while using Fixed Roof Windows in hallways, stairwells and other spaces where daylight is the primary objective.

When planning a new skylight, it is also important to consider the applicable building regulations. In some situations, natural light requirements may apply to rooms without conventional windows. In others, ventilation requirements may influence the selection of an Opening Roof Window. Conversely, certain locations may require a Fixed Roof Window due to bushfire, wind loading, fire separation or other project-specific requirements.

If in doubt, consult your builder, building surveyor or relevant authority before making a final selection.