Material Types

Permaclad® / Colourclad® Roofing

We supply metal roof cladding in both Permaclad® and Colourclad® (Permaclad® with oven cured paint finish).

Permaclad® (also known as Aluzinc/Galvalume/ZincAlume) is a structural steel substrate coated on both sides with an alloy of Aluminium and Zinc by a hot dipping process.

Technical Characteristics: Permaclad®

Quality: Structural quality steel base to ASTM A792M Grade 345A.

Min Tensile strength: 450 N/mm²

Min. Yield strength: 345 N/mm²

Min. Elongation: 12% in 50mm

 

Coating Characteristics:

Coating Compostion: 55% Al, 43.4% Zn, 1.6% Si

Min coating mass: AZ200- 200g/m2 each side (28 microns/side)

Surface finish: smooth, spangle

Surface Protection: Chromated, resin-coated

Specific Weight: 3.75 g/cm3

Formability: very good behavior in: bending; rollforming; drawing

High temperature behaviour: no discolouration up to 3150 C (6000 F)

Heat reflectivity: similar behaviour to aluminized steel up to 3150 C (6000 F)

Weldability: similar behaviour to galvanized steel for:
spot, seam resistance and arc welding.

Painting: very good paintability, excellent adherence,
can be painted immediately.

Colourclad® is an aesthetically pleasing sheet product that is comprised of a structural steel substrate coated on both sides with an alloy of Aluminium and Zinc by a hot dipping process, a corrosion inhibitive primer and an oven cured paint finish.

Technical Characteristics: Colourclad®

Quality: Structural quality steel base to ASTM A792M Grade 345A.

Min Tensile strength: 450 N/mm²

Min. Yield Strength: 345 N/mm²

Min. Elongation: 12% in 50mm

 

Coating Characteristics:

Coating Compostion: 55% Al, 43.4% Zn, 1.6% Si

Min Coating Mass: AZ200- 200g/m2 each side (28 microns/side)

Primer Coating 1: Min. 5 microns Epoxy primer on each side

Paint Finish 1: 20 microns modified Polyester on each side (light colours)

Primer Coating 2: Min 5 microns Polyurethane on each side

Paint Finish 2: 20 microns Poly Vinylidene di-flouride (PVF2)
on each side (dark colours)

Specific Weight: 3.75 g/cm3

 

Colourclad® Colour Chart – Screw Fixed Roofing

Due to limitation of photographic and printing processes, the colours shown do not accurately represent our actual colours. Sample chips are available on request at no charge.

  • Grizzly Brown

  • Capri Blue

  • Etna Red

  • Florida Yellow

  • Forest Green

  • Atlantic Green

  • Eucalyptus Green

  • White

Colourclad® Colour Chart – Concealed Fix Roofing

  • Manor Red

  • Sand Bank

  • Blue Ridge