Composite Doors – including Fire Doors

Composite doors are defined as a combination of PVC door outerframe with a door leaf of standard 44mm thickness made out of a range of materials from wood to metal and GRP.

This combination of materials can often give specifiers more choice in areas such as appearance, economy, strength or specialist performance such as disabled access or fire resistance.

The Sheerframe door framing system is a speciality suite of profiles designed to work with all types of 44mm non-rebated door leaf.

The outerframe profiles are thermally enhanced and can come with a superior triple sealing system, making them more weather-tight and durable than traditional doors made solely from metal or wood.

Importantly, the Sheerframe door system has been tested and approved for 30 minute fire resistance to BS 476 : Part 22 (Chiltern International Report FER/FO 7024).

This fire performance approval covers doors with sidelights and includes
glazed door-blades and glazed sidelights.

This speciality fire performance is unique to the Sheerframe range.

Technical information

Composition
Outerframe sections extruded from Sheerblend calcium organic impact modified PVC complying with BS EN 12608.

Appearance
A smooth white surface or various woodgrains.  Profiles have a chamfered edge to match traditional sightlines.

Size
Door frames are manufactured to customer specification.  Maximum recommended size for individual doors is 1000mmW x 2300mmH.

For all queries regarding size, range, design and function please contact L.B. Plastics' Specifier Support Department.

Fittings and Hardware
The frame system has been designed to incorporate both traditional locking systems and systems commonly associated with PVC doors.  Hardware specifications are normally the concern of the door blade manufacturer, though details are available from L.B. Plastics if requested.

Reinforcing
Reinforcing is to be applied in accordance with the relevant Sheerframe manufacturing manual.

Maintenance
Refer to door blade manufacturers' recommendations.  Composite door framing can be either 60mm or 70mm deep and combine a variety of proprietary low thresholds or be welded four sides with smaller or standard frames at the bottom.

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