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 Silmar 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

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