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Clean and dry 100 to 150 mm wide by 18 or 24 mm thick softwood boards, depending on the centre-to-centre distance between bearing structure elements. |
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Any wood treatment products (fungicides, insecticides) must be dry and completely neutral to VM ZINC®. |
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75° to 90° facades: install boards vertically leaving 3 to 5 mm between them. |
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90° facades: install boards vertically at 400 mm centre-to-centre. However, for the areas of the facade near by traffic, continuous boarding should be installed to a height of 2 m. |
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Maximum difference in height of 1 mm between roof boards. The deflection measured under a rigid 600 mm long straight edge cannot exceed 2 mm in all directions. |
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The nails fixing the boards are countersunk in order to avoid any contact with the VM ZINC®. |