Invisi-Gard® is Australia’s leading stainless steel mesh security screen system, developed by Alspec to meet the demands of contemporary architecture where safety, ventilation, and aesthetics must coexist.

For educational environments, Invisi-Gard delivers a unique combination of:

Fire attenuation, protecting against radiant heat and flame spread between buildings.
Human impact and fall protection, satisfying safety requirements for upper-storey classrooms.
Ballistic impact resistance, providing robust protection for windows adjacent to play areas or sports courts.
Architectural integration, ensuring the system complements modern school facades.

Applications in school environments

System overview

Product: Invisi-Gard® stainless steel security screen system

Manufacturer: Alspec Pty Ltd

Materials:

316 Marine-Grade stainless steel mesh (0.8 mm wire, 11 x 11 weave)
Architectural-grade aluminium frame system
UV-stabilised PVC wedge retention system

Finish: Powdercoated to AS 3715 in any DuluxGroup or Powder Coatings by AkzoNobel (Interpon) colour

Integration: Compatible with all Alspec window, door, and framing suites including McArthur Evo, Hunter Evo, and Swan Evo.

Performance characteristics

Compliance and NCC Considerations

National Construction Code (NCC) alignment

Section D2.24 & D2.25: Protection of openable windows – Invisi-Gard meets human impact load requirements as per AS 5203.
Specification C3.4: Fire spread between buildings – Fire attenuation compliance under AS 1530.4.
Part F2.2: Natural Ventilation – Maintains effective ventilation area without the need for external barriers.

Deemed-to-satisfy support: Where human fall prevention, fire separation, or impact protection is required, Invisi-Gard can form part of a Performance Solution or DTS element depending on design intent.

Design integration

Testing and certification

All testing performed by NATA-accredited laboratories:

AS 5041 (Security screen doors & window grilles)
AS 5203 (Protection of openable windows/fall prevention)
AS 1530.4 (Fire attenuation) test certificates available upon request from Alspec Technical Department.

Sustainability and maintenance

Materials: Low carbon and recyclable aluminium, and stainless steel
Low maintenance: Clean every 3–6 months with mild detergent and water
Durability: 10-year warranty against corrosion and mechanical failure (conditions apply)

Your screen should only ever need to be washed down with a soft brush using warm water and a mild detergent. Rinse well with fresh water to remove any residue. Do not use strong detergents or abrasive cleaners as they may scratch or damage the finish

Example specification clause

Security/ Fire Attenuation/ Human Loading Screen: Provide Invisi-Gard® stainless steel screen system by ALSPEC, incorporating 316 marine-grade mesh mechanically retained within an extruded aluminium frame. The system shall:

Comparison summary (architectural positioning)

Architecture & Design Team

Invisi-Gard

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