Security Screen Windows and Doors: Airflow and Natural Air Conditioning

June 1st, 2026

Why airflow matters in Australian homes.

Australia’s climate, particularly in Queensland, New South Wales and coastal regions demands natural ventilation. Cross ventilation dramatically reduces indoor temperatures, improves air quality and reduces reliance on air conditioning.

The problem is simple. Open doors and windows invite insects, compromise security and expose the home to the elements. Most Australians face a choice between ventilation and security.

Security screen doors and windows solve this completely.

How security screens enable natural ventilation

A properly specified security screen allows you to leave doors and windows fully open day and night, without compromising security or letting insects in. 

The airflow numbers: SecureView EclipX woven stainless steel mesh has an open area of 42.71%, meaning nearly half the screen surface is open space. Air moves freely through the mesh while the 1.575mm aperture keeps out insects including most sand flies.

This is significantly more open than perforated aluminium alternatives, Xceed has a 2.2mm aperture which is larger but the solid aluminium sheet reduces total open area.

The result: A fully open security screen door allows almost unrestricted airflow, the difference in ventilation compared to a closed door is dramatic, particularly in single storey homes where cross ventilation is the primary cooling strategy.

Cross ventilation – getting it right

Cross ventilation works by creating airflow through the home where cool air enters on one side and warm air exits on the other.

The basics:

• Open security screen doors and windows on opposite sides of the home
• Pay attention to the prevailing breeze direction with opening the upwind side to draw air through
• Upper level openings helps hot air escape as its air rises naturally
• Security screens on both sides of the home maximise the cross ventilation effect

A home with security screen doors and windows on multiple sides can maintain comfortable temperatures through most of the year without air conditioning, particularly in coastal regions where sea breezes provide natural cooling.

No midrails – unobstructed airflow

Standard security screens often require a midrail, a horizontal bar across the middle of the screen, for structural integrity on larger openings. Midrails reduce airflow and obstruct the view.

CommandeX’s patented fixing system which is a two part wedge bonded with 3M VHB aerospace adhesive, eliminates the need for midrails on most standard door and window openings. The mesh is held firmly in the frame without screws, rivets or mid-frame supports.

The result is a completely unobstructed screen which means maximum airflow, uninterrupted sightlines and a cleaner aesthetic.

Security screens for coastal ventilation – SaltWaterSeries

For homes in coastal environments -within 500 metres of the coastline or on escarpments where prevailing winds carry salt air, the SaltWaterSeries provides the same excellent airflow as SecureView EclipX with additional protection against corrosion.

The SaltWaterSeries frame coating is independently tested to 3,000 hours under AS2331.3.1, specifically engineered for the relentless salt air that coastal homes face year round.

Leave your doors and windows open to the sea breeze without worrying about your screens corroding within a few years. That’s the point of the SaltWaterSeries, ventilate freely, protected properly.

Insect protection – what the mesh actually stops

The 1.575mm aperture of SecureView EclipX woven stainless steel mesh stops:

• Mosquitos 
• Flies 
• Moths 
• Most sand flies
• Cockroaches 
• Other common Australian insects 

Security while ventilating – the AS5039-2023 assurance

Every CommandeX security screen is independently tested and exceeds Australian Standards AS5039-2023. This is the standard that defines the minimum requirements for a product to be classified as a security screen.

This means you can leave your doors and windows open with genuine confidence and not just a flyscreen between you and the outside world, but a product that has passed independent knife shear, pull, jemmy, impact and probe testing.

All installations comply with AS5039.2:2024 by licensed CommandeX dealers.