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Topglass Cool

Heat Reducing Translucent Roofing

 

Introduction

A purpose developed natural roof lighting product that permits the transmission of quality natural light whilst providing excellent thermal and Ultra Violet Blocking benefits.


 

Key Benefits

  • Topglass Cool is a purpose developed heat reflective translucent glass reinforced polyester sheeting which is identified by its Ultra White finish;
  • Topglass Cool provides an economical means of transmitting diffused natural light to the building interior, resulting in reduced air-conditioning and ventilation costs;
  • While transmitting natural light, Topglass Cool reflects unnecessary solar heat and virtually eliminates harmful ultra-violet radiation, providing a more comfortable work environment;
  • Unlike other Infra Red blocking products, Topglass Cool continues to allow valuable heat to enter the building during the winter months with this then retained for longer periods and resulting in reduced heating costs;
  • Specifically developed for industrial and commercial buildings, Topglass Cool is a relatively inexpensive and functional sheeting which is suitable to meet a wide variety of applications.

 

Applications

  • Food manufacturing buildings;
  • Warehouses and retail outlets storing food and fresh produce;
  • Shopping centres and supermarkets;
  • Bulk paper stores;
  • Temperature-sensitive environments requiring high quality uniform natural light.
  • Where harmful UVA and UVB transmission through the roof lighting may damage goods, Plant and fixtures.

 

Heat Reflective Surface

Topglass Cool has an Ultra White reflective surface.
The function of the coating is to allow natural diffused light through the sheet while at the same time reflecting the bulk of the solar heat away from the building interior. Heat is retained for longer periods within a building during the winter months. The effectiveness of Topglass Cool is shown in the Heat and Light Transmission table.


 

Surface Coatings

The 100 micron** gel coat used in the manufacture of Topglass Cool 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 Cool is available in Ultra White finish only.


 

Operating Temperature

The operating temperature range of Topglass Cool is - 20º C to +95º C.


 

Fire Retardant

Topglass Cool can be supplied as fire retardant sheeting.


 

Trafficability

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


 

UVA and UVB transmission

Topglass Cool provides blocking of 99.9% UVA and 100% UVB harmful Ultra Violet light*.


 

Span Capacity Chart

 

Spanning Capacity Eco-Lite 10 and Topglass Grades

 

                                   Sheet Weight g/m2                   

   Recommended number of fasteners

 

2400

3050

3660

4270

4880

                Roof

                Wall

Profile

                                 Purlin Spacings                      

Mid Span

End Span

Mid Span

End Span

Corrugated

1200

1500

1700

 

 

4

6

6

6

Trimdek

1500

1700

2000

2300

 

5

5

5

5

Spandek

1600

2000

2300

2600

2800

5

5

5

5

Longspan

1600

2000

2300

2600

2800

5

5

5

5

Kliplok 406

1400

1700

2000

2300

2600

3

3

3

3

Kliplok 700

1400

1700

2000

2300

2600

4

4

4

4

Speedek

1400

1700

2000

2300

2600

3

3

3

3

The above spans are recommended for wind loads up to 1 Kpa

 

 

 

 

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

Material Expansion Comparisons 0 - 40°C temperature variation
  Fibreglass Polycarbonate Steel Aluminium
Thermal
expansion
7.2mm 16.2mm 2.9mm 5.8mm
Thermal
coefficient
3x10-5cm/cm/°C 6.75x10-5cm/cm/°C 1.2x10-5cm/cm/°C 2.4x10-5cm/cm/°C





Weights Chart

Series Weight Kg/M2
2400 2.4
3050 3.05
3660 3.66
4270 4.27
4880 4.88

 

 

Heat & Light Transmissiion Chart


 

Specification

The Translucent roofing shall be Topglass Cool Ultra White 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® Cool is supported by a comprehensive 25 year warranty. Contact FGW Corporation for full warranty details.



Download Installation Instructions

Download Topglass Cool Brochure

Design considerations

Profiles

Safety Data

For the FGW Corporation Technical Catalogue or further information please use our online contact form.


* It is possible for UVA and UVB to refract around the side of an open structure
** Nominal 100 micron gel coat



    
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