This render carrier board tray is typically used for thin coat render systems. The 6mm tray clips on to the bottom of 12.5mm render carrier boards and has a 45-degree drip profile, helping to drive water away from the render system to help limit water ingress.
The render carrier board tray is specifically designed for 6mm thin coat render systems and will fit all external façade boards with a thickness of 12mm. The tray is clipped on to the bottom of the render carrier boards at the same time as the boards are attached to the battens, so then they are locked in place.
The render carrier board tray is made from rigid PVC plastic, so there is zero risk of rusting. There is a fibreglass mesh attached to the render carrier board tray that gets embedded within the basecoat layer of the thin coat render system tying everything together.
The 45 degree drip on the front of the render carrier board tray also creates a clean finish at the bottom of the rendered surface.