Product Description

The ProctorPassive Drainage Batten (DB-FR) is a high compressive strength drainage batten manufactured from a flame retardant polyolefin extrusion with aspread of flame index of 0. (AS1530.3)

Applications – Roofing

It is common industry practice with metal roofing to install sarking running up the roof fixed on top of roof battens. Such practice restricts air movement and drainage between the sarking and flat profile or concealed-fix roof cladding. This can also lead to ponding if there is excessive drape in the sarking, or can result in the sarking, if pulled tight, being in direct contact with the roof sheet.

ProctorPassive DB-FR has been designed to resolve these issues with a drainage batten to provide for air and vapour movement and a pathway for drainage between the sarking and the roof cladding.

Applications – Walls
The ProctorPassive DB-FR can be used either in combination with, or as an alternative to wall battens, to create a ventilation and drainage cavity behind the wall cladding.

As the ProctorPassive DB-FR is open to air movement and drainage, it is well suited for use horizontally or vertically above and below windows where solid battens can potentially block ventilation and drainage.

Benefits

• Provides for a drainage and ventilation path under flat profile and concealed-fix roof or wall claddings.
• Can reduce the risk of ponding of water on sarking behind roof battens and the fascia.
• Allows for vapour permeable membranes to be installed without direct contact to the roof or wall cladding thus reducing localised condensation risk on the    interior face of these membranes.
• Reduces conductive heat transfer between the roof or wall cladding and the structure.
• Does not restrict buoyancy induced air flow under the roof sheet and in wall cavities.
• Has a minimum 300kPa compressive strength – a requirement of some major roof cladding manufacturers when using extruded polystyrene (XPS) foam insulation packers.