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Topglass GC

Gel-Coated Roofing and Cladding

Introduction

Topglass GC is a recent development in the Topglass Natural Lighting family of products and uses an innovative manufacturing process developed by Alsynite NZ Ltd whereby Silmar 100 micron** Gel-coat is applied to the weather surface of the sheeting.

Offering exceptional resistance against corrosive atmospheres, and providing protection against solar deterioration Topglass GC brings additional benefits to Building Designers and owners.

Topglass GC can also be supplied in “solid colours” providing an excellent alternative to metal roofing and cladding systems in corrosive environments.— See Topclad page.

Key Benefits

• Manufactured from an acrylic modified polyester resin system and incorporating additional ultra violet stabilisers, Topglass GC utilises anti-static high quality glass fibre rovings to give maximum strength during the curing and bonding process;
• The ultimate benefit of the Topglass GC product over general purpose grades of GRP natural roof lighting products is the addition of a UV-stabilised 100 micron Silmar gel-coated surface which is reactive thermo-set to provide a high gloss surface;
• Topglass GC, which is manufactured to meet the requirements of AS/NZS 4256:3.1994, is economical and provides flexibility whilst resisting UV degradation and yellowing much longer than is commonly experienced with general purpose grade translucent roofing products.
  

Applications

• Roof and wall lighting to all commercial, industrial, institutional and other buildings requiring long term natural lighting without early surface degradation;
• School/Kindergarten and public outdoor areas requiring good UV protection.
  

Special Applications

• Topglass GC can be pigmented to meet varying light transmission requirements

Surface Coatings

The Silmar 100 micron** gel coat used in the manufacture of Topglass GC gives very good protection against solar deterioration. The reverse side of the sheeting is protected with a 20 micron stabilised Polyester film. Where corrosive atmospheres exist which affect the underside of the sheeting, a Proprietary high-sheen corrosive resistant surface can be supplied in place of the film.

Colours

Topglass GC is available in standard colours of Clear, Opal, and Cream.
Cool versions can be supplied as Topglass SPF 4, and Topglass SPF 8 along with Topglass GC Cool. (See heat reducing sheeting) Other colours and pigment variations are available on request to suit specific design applications. Consult FGW Corporation as minimum quantities apply.

Heat Reducing Sheeting

Topglass GC can be supplied as heat reflective translucent roof sheeting. Topglass SPF, and Topglass GC Cool

Topglass SPF:Supplied as Topglass GC SPF 4 and SPF 8, these revolutionary new products utilise a purpose developed compound, similar to that used in the manufacture of modern day Sunglasses, whereby the product differentiates and then separates Infra-Red (heat) whilst continuing to maintain maximum light transmission . Topglass GC SPF is available to match all roofing profiles

• BROCHURE - Topglass GC SPF 0707.pdf

Topglass GC Cool: A lower cost product than Topglass GC SPF, which utilises innovative pigments to absorb and reflect heat away form the interior of a building whilst maintaining long-term effective light transmission. Topglass GC Cool is available to match all roofing profiles
Operating Temperature

The operating temperature parameter of Topglass GC is-30ºC to + 70º C.

Fire Retardant

Topglass GC can be supplied as fire retardant sheeting.

Trafficability

Where trafficability is of concern contact FGW Corporation for specific technical support.

Severe Corrosion Environments

In areas where corrosion is severe Topglass GC can be manufactured using a special purpose vinyl ester corrosion-resistant resin system.

Specification

The Translucent roofing shall be Topglass GC (Insert tint/colour) reinforced Polyester roof sheeting as manufactured by FGW Corporation to comply with AS/NZS 4256.3:2006
The sheeting shall be .........g/m2 or .........mm and manufactured to conform to the nominated roofing and cladding profile. Installation shall be carried out in accordance with the requirements of AS/NZS 1562.3: 1994, Australian Roofing Code of Practice and FGW Corporation Technical catalogue.

Warranty

Topglass GC is supported by a comprehensive 25 year project warranty. Specific targeted project warranties maybe available. Refer to the FGW Corporation Technical Catalogue for warranty details or contact FGW Corporation.

Span Capacity Chart

Physical Properties Chart

Specific Gravity	1.45
Tensile strength	90 Mpa
Surface Hardness minimum	40 Barcol
Impact strength minimum	1.96 Mpa
Shear strength	90 Mpa
Modulus of Elasticity	5,500 Mpa
Thermal Expansion	2.0 x 105 cm/°C
Water Absorption	0.2% in 24 hrs at 26°C
Flexible strength	145 Mpa
Service temperatures	-20 to 95°C
Available colours	Opal, other colours available upon request (Min order qty)

Expansion Data Chart

Weights Chart

Visible light & Solar Transmission Chart

Download Installation Instructions     (requires Adobe Acrobat to view)

Download Topglass GC brochure