ZINCALUME® coated steel has a bright, uniform appearance that ages to a satin-like metallic finish.
ZINCALUME® coated steel should not be installed in contact with non-galvanised steel, copper, brass, lead, stainless or monel metal. Do not use lead flashing with ZINCALUME® products.
If nestable profiles become wet while closely stacked, formation of wet storage stain or ‘white rust’ is possible. To minimise the possibility of inadvertent damage:
ZINCALUME® coated steel complies with the Type AZ coatings requirements of AS1397:2011.
ZINCALUME® products are not suitable for use in the following situations:
ZINCALUME® products cannot be soldered.
For unpainted products the combination of coating mass and coating type determines the effectiveness of the metallic coating. The newer AM coating is superior to the original ZINCALUME® product.
Class 4 fasteners are recommended for outside conditions when using ZINCALUME® coated materials.
To ensure appropriate quality products are used in construction, comprehensive specifications from Stramit's relevant Product Technical Manuals should be included in the design documentation, including reference to ZINCALUME® material.
ZINCALUME® material can be easily cut, where required, using a power saw with a steel cutting blade or a power nibbler and, for localised cutting, tin snips. Avoid the use of abrasive discs as these can cause burred edges and coating damage. Please dispose of any off-cuts carefully.
Please refer to the SA HB 39:2015 Installation code for metal roof and wall cladding for correct installation guidelines, particularly in regard to underlays/building papers, penetrations, flashings, fasteners and pitch.
Where sealed joints are required, use only neutral cure silicon rubber sealant together with mechanical fasteners such as aluminium rivets. Do not weld or solder.
The service life is extended by regular washing. A mechanical wash every six months is recommended, more often if contaminants build up. At these times inspect for damage and failing fasteners, and repair these.