PERMALITE ALSPAN®

Product Description and Features

PERMALITE ALSPAN® is a roofing profile made from marine grade aluminium alloy. It was designed specifically to provide a wide spanning capability, to have a high water water carrying capacity and to accommodate foot traffic without damage.

All of these requirements are realised in the distinctive ribs and wide pans which offer a well-defined presentation of large areas. 

• Long lasting, durable, lightweight alternative to other cladding materials.
• High thermal insulation. This is significant in reducing the operating cost of air conditioning.
• Minimal maintenance to remain corrosion free.
• The lighter mass of aluminium can provide a substantial reduction of the cost of transport to remote locations.

Note:

• Galvanic corrosion may occur when aluminium, in the presence of water, is placed in contact with metals other than alloys of aluminium, non-magnetic stainless steel or zinc. Direct contact with zinc coated steel is not recommended in marine or industrial environments.

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Availability

PERMALITE ALSPAN® is available nationally though minimum order quantities and freight charges apply.

Colour Range

PERMALITE® Colour	Matches COLORBOND® steel Colour
Glacier White™	Surfmist®
Enduro Green®	Pale Eucalypt®
Sahara®	Dune®
Perpetual Green®	Wilderness®
Moon Shadow®	Windspray®
Mill Finish - Unpainted
Stucco Embossed - Unpainted

Please note that Resiliant Red™ and Eternal Blue™ have been removed from our standard colour range. For any specific colour enquiries and lead times please contact 1300 850 389.

Lengths

• Thickness Range:  0.70mm, 0.90mm, 1.2mm
• Length Range: 1.0 through to 21.2 metres
• Pan Cross Section Area: 37,500mm²/metre sheet width

Material Specification

PERMALITE® profiles are manufactured entirely from marine grade aluminium alloy with exceptional resistance to corrosion in marine or industrial environments.

The profiles are available in three finishes:

• Mill Finish - a smooth lustrous finish which will dull relatively quickly and enhances corrosion resistance.
• Standard Finish - stucco embossed mill finish, which reduces the specular reflectance of mill finish sheet.
• Painted Finish - a range of quality painted finishes are available.

PERMALITE® Roof and Wall Sheet may be supplied prepainted on one or both sides.

Aluminium provides a superior painting base for paint systems. Before roll forming, the paint is applied to the coiled sheet by reverse roller coating and heat curing on paint lines employing the latest painting technology.

The paint systems commonly used are:

1. Polyesters - These coatings have outstanding colour and gloss retention characteristics and are suitable for exterior roofing and walling applications in all but the most severe environments.
2. Fluorocarbons - Premium coatings with excellent weatherability and durability. These coatings are recommended for severe marine and industrial environments.

Physical Properties

Thickness (mm)	Kg/m2 Cover Width	Kg/m Length	Section Modulus x 103 mm3	Moment of Intertia x 103 mm4
0.70	2.66	2.29	8.9	306
0.90	3.42	2.95	11.4	393
1.20	4.56	3.93	15.2	524

 
Schematic