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Topglass GC Ultra-Safe & Topclad GC Ultra-Safe

Topglass GC Ultra-Safe and Topclad GC Ultra-Safe are heavy duty, high impact glass fibre natural-light roof systems providing a structural capability not normally available with traditional translucent roofing materials.

Topglass GC Ultra-Safe and Topclad GC Ultra-Safe are both available in a variety of colours with Topclad GC Ultra-Safe being solid coloured.


Key Features
  • Exceptional strength as it's manufactured using heavy duty woven roving incorporated into the resin matrix
  • Impact resistant as tested to AS/NZS 4040 and satisfies the requirements of AS 4256.3
  • High impact strength as the roving matrix runs both longitudinally and laterally within the sheet
  • Long term light transmission provided by a 130um Exo-set 206 Premium Gelcoat surface
  • Corrosion-resistant for use in aggressive environments
  • Excellent spanning capabilities
  • 20-year weather surface structured warranty
Plastic Roofing
Scope of Use
  • Educational facilities and public assembly areas where there is danger of people climbing onto a roof
  • Fertiliser plants
  • Chemical and powder-coating plants
  • Wool scouring facilities
  • Waste water treatment plants
  • Salt extraction facilities
  • Severe marine environments
  • Natural roof lighting where safety mesh is not installed
  • Wood pulp and paper plants.
Statement of Building Code Compliance

Topglass® GC Ultra-Safe meets the impact strength tests of AS 4256.3 clause 11.3, AS 4040.1, and AS 1562 alleviating the need for safety mesh.

  • Impact Resistance: AS/NZS 4257.6:1994
  • Shear Strength: ASTM D732-10
  • Compressive Strength: ISO 604- 2003  
  • Flexural Strength: ASTM D790-10
  • Specific Gravity: ASTM D792-08
  • Tensile Strength: ISO 527-1 & ISO 527-2
  • Co-efficient of Linear Expansion: ASTM D96-98
  • Thermal Conductivity: C518-10
Other Performance Attributes

Mechanical Panel Testing was completed on Topglass GC Ultra-safe 3660gsm in August 2014 – see Test Results.

Data Sheet
Design Considerations
Independent Appraisal (BRANZ)
Test Results
Installation and Operation
Colour Range
Project Solutions
Topglass FR50 Group3 & 60FR Group2 Fire
Topglass GC
Topglass GC Ultrasafe - Trafficable
Topglass TwinSkin - Condensation & Thermal Control

Alsynite has been manufacturing and distributing superior fibreglass and polycarbonate, translucent and clear, roofing products since 1996.

Product Enquiries

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