Horizontal 90 Degree Internal Corner Cavity Tray

The Horizontal 90 Degree Internal Corner Cavity Tray is an essential building material designed for effective moisture control in masonry structures. Constructed from durable polypropylene and medium density polyethylene, this tray is suitable for installation within wall cavities measuring between 50mm to 125mm in width. Ideal for both trade professionals and DIY enthusiasts, it helps to prevent water ingress while maintaining the structural integrity of internal corners.

Featuring a unique rigid design, the tray holds itself firmly in place during installation and includes preformed clips that allow for straightforward mortar insertion. Its integral stop ends ensure optimal water collection, significantly reducing the risk of damp within the construction. The innovative jointing method, which utilises integral interlocking lapped joints, removes the need for additional adhesives, making the installation process simpler and more efficient.

Specifications

Type: Horizontal 90 Degree Internal Corner Cavity Tray
Suitable Cavity Width: 50-125mm
Wall Thickness: Not exceeding 102.5mm
Construction Materials: Standard brick, block or stone
Component Material: 2mm polypropylene (main tray), 2mm medium density polyethylene (accessories)
Colour: Black
Jointing Method: Integral interlocking lapped joints; does not require additional adhesives
Upstand Height: 150mm
Standard Lengths: 1 brick for internal 90° corner; compatible with 2 brick (450mm) and 4 brick (900mm) straight trays
Weep Hole Requirement: One weep hole per cavity tray required
Installation Notes: Weep holes must be provided in every tray; not necessary for tray to span entire cavity except in severe weather exposure

Key Features

• Preformed tray maintains rigidity within the wall cavity
• Covered interlock allows for linking multiple trays
• Integral stop ends ensure efficient water collection
• Reduces cold bridging at internal corners
• Exceeds NHBC requirements for upstand height