• Suitable for industrial, commercial and selected institutional roofing and wall cladding applications requiring natural daylight or opaque GRP sheeting
• Suitable for corrosive and aggressive environments, including marine, wastewater treatment, chemical processing, pulp and paper, fertiliser and industrial processing facilities
• Suitable for new buildings and refurbishment projects
• Designed for installation over compliant roof framing systems in accordance with Alsynite One installation requirements and applicable New Zealand Standards
• Available in a range of roofing and wall cladding profiles to suit common construction methods
• Suitable for use throughout New Zealand, including severe marine environments, subject to project-specific design and maintenance requirements
• Suitable for roof daylighting applications where enhanced impact resistance is required
• Maximum support spacings and design loads to be determined in accordance with the relevant engineering documentation

• Installation shall be carried out in accordance with Alsynite One installation requirements and applicable New Zealand Standards.
• Support spacings, fixing systems and design loads shall be determined in accordance with project-specific engineering requirements.
• Compatibility with adjacent materials, sealants and fasteners shall be confirmed where used in corrosive or chemically aggressive environments.
• Product suitability for specific wind, snow, seismic and concentrated load applications shall be determined by the project designer.
• Long-term performance may be affected by poor installation, impact damage, unsupported foot traffic or incorrect maintenance practices.
• Not intended for continuous immersion, ponding water or environments subject to prolonged exposure to elevated temperatures unless specifically approved by Alsynite One.
• Some colours, profiles and product configurations may be subject to minimum order quantities or project-specific manufacturing requirements.

When designed, specified and installed in accordance with Alsynite One technical literature, project-specific engineering requirements and applicable New Zealand Standards, Topglass GC Ultra Safe Roofing and Topclad GC Ultra Safe Cladding may contribute to compliance with the following New Zealand Building Code clauses:

• B1 Structure
• B2 Durability
• E2 External Moisture
• F2 Hazardous Building Materials 

Manufacturing and Product Standards

• AS 4256.3 Glass reinforced polyester roof and wall cladding materials

Structural Performance

• AS/NZS 4040.1 Concentrated load testing
• AS/NZS 4040.4 Impact resistance testing
• Independent engineering assessments

Material Properties

• ASTM D790 Flexural Strength
• ISO 527 Tensile Strength
• ISO 604 Compressive Strength
• ASTM D732 Shear Strength
• ASTM D696 Coefficient of Linear Expansion
• ASTM C518 Thermal Conductivity
• ASTM D792 Specific Gravity

Supporting Documentation

• Product Technical Statement (PTS)
• Building Product Information Requirements (BPIR)
• Installation Guide
• Warranty

Final verification of product suitability, support spacings, fixing systems and maintenance access remains the responsibility of the project designer.

Alsynite One has manufactured and supplied glass reinforced polyester (GRP) roofing and wall cladding products in New Zealand since 1996. The Topglass® and Topclad® product ranges have been specified and installed across a wide variety of industrial, commercial, agricultural and institutional projects throughout New Zealand and the Pacific region.

Typical applications include manufacturing facilities, warehouses, wastewater treatment plants, fertiliser processing plants, marine environments, educational facilities and other buildings requiring durable natural daylight roofing and wall cladding systems.

The Topglass® and Topclad® product ranges have over 25 years of successful in-service performance in New Zealand, including exposure to severe UV, coastal and corrosive environments.

• Premium 130 micron EXO-SET® 206 gel coat provides long-term weathering resistance with enhanced UV protection.
• Resistant to corrosion in industrial, marine and chemically aggressive environments.
• Available in translucent and solid colour options with a range of light transmission characteristics.
• Excellent resistance to UV degradation and premature yellowing compared with conventional GRP sheeting systems.
• Provides diffuse natural daylight while reducing glare and internal heat build-up.
• Independently tested for concentrated load and impact resistance.
• Supported by a 20-year structured weather surface warranty.