Eurotray^® Angle Seam

Eurotray® Angle Seam Performance

Looking to add interest to your design or project? Consider the bold look that Eurotray® Angle Seam offers. This member of the Eurotray® family lends itself well not only as a striking roofing profile – but as an exceptional wall cladding solution as well. In cladding situations, Angle Seam can be run both vertically and horizontally. Can also be curved.

Sheet Tolerances
Cover: ± 5mm - Sheet length: +10mm, -0mm (Steel) 
Cover: +10mm, -15mm – Sheet length: +0mm, -15mm (Aluminium, VM Zinc and Copper)

Roll-forming facilities at: Auckland, Christchurch and Invercargill

Curving facilities: Machine is transportable. For curving restraints check with the local RoofingSmiths.

Sheet lengths: Eurotray® is custom run to order.

Where long sheets are used, consideration must be given to:

• Special transportation licences
• Should be run on-site
• Site access for special lifting equipment
• Fixing techniques to accommodate thermal expansion

Oil Canning

Oil Canning is the visible waviness in the flat areas of metal roofing and walling. Oil canning produces an aesthetic effect inherent in standing seam tray profiles and profiles/flashings with wide flat elements. It does not cause detriment to product performance.

Oil canning can occur during the forming and installation processes and during thermal expansion of the roof sheeting during its life cycle. The effect can be more or less pronounced depending on differing light and sun angle conditions and the coating gloss levels.

For fully supported standing seam tray profiles, oil canning can be reduced by the vented roof underlay (e.g. Tyvek Metal), in addition, backer rods under the tray can also be used.

There are several options to reduce the oil canning effect in tray-type profiles and flashings, for example,

a) increasing the thickness of the material,

b) using stiffening swages in wide flat elements and

c) limiting flat elements to less than 150mm width.

For further information, please refer to the New Zealand Metal Roof and Wall Cladding Code of Practice, Section 12.3.

Fastener Design
 

The durability of the fasteners should equal or exceed that of the material being fastened, and the fastener metal or coating must be compatible with the cladding material if in contact. Refer to NZS E2/AS1 table 20 for compatibility requirements. 

The minimum embedment of 30mm is the requirement for screws fixing into timber and minimum of three threads to pass through steel. When fastening through cavity battens, thermal break materials etc ensure the length of the screw is increased to accommodate the extra material.

Can be installed as a wall cladding with a substrate over vented cavity battens

Roof Load Span Tables

Provision for Expansion

• Non-ferrous tray roofing expands at about twice the rate of ferrous metals 
• Supported angle or double standing seam profiles must be installed using a balance of sliding clips for expansion, and fixed clips to withstand gravity loads 
• Positioning of clips depends on roof pitch, please refer to NZMRM CoP 15.4.13.3A www.metalroofing.org.nz.