Home > Companies > Lorient Polyproducts Ltd > Fire and Smoke Resistant Letterplate

Tested in accordance with the principles of BS 476 Pt 20/22 and has been shown to provide in excess of 30 minutes fire resistance.

Features:

  • Telescopic intumescent liner, making it suitable for different thicknesses of door.
  • Robust aluminium construction.
  • Tested with positive pressure and can be located in any area of the door.
  • CERTIFIRE approved, certificate number CF219 (letterplate manufactured by Paddock Fabrications Ltd).
  • Nylon brush seals fitted to prevent vision through the letterplate and provide draught proofing.
  • Security cowl available to prevent vision through the letterplate when open, and to inhibitmanipulation of locks and bolts.

Acoustic Performance:

Under test conditions it has been demonstrated that the Firemaster letterplate does not cause any significant reduction to the overall acoustic performance of the solid core fire door to which it is fitted.

Related literature

The following content references this product:

Standard product features

Maximum/ minimum door thickness (suffix F indicates fire protection; suffix S indicates smoke protection):

  • LRJ 8042F or LRJ 8042S: 42 mm/ 47 mm.
  • LRJ 8047F or LRJ 8047S: 47 mm/ 52 mm.
  • LRJ 8052F or LRJ 8052S: 52 mm/ 57 mm.

Dimensions:

312 x 80 mm.

Door aperture size:

270 x 60 mm.

Options

Optional Security Features:

  • Security Cowl: Prevents people seeing through the open letterplate. Stops people trying to manipulate locks and bolts through the letterplate and inhibits attempts to attack occupants through the letterplate aperture. Ref: LP10.
  • Security Latch: Locks the inner flap. Ref: LP11.
  • Post-box: This item is constructed from steel with welded seams and collects the post and keeps it secure. It also prevents damage from flammable or noxious items posted through the letterplate. Ref: LP12.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-25-38/355 Letter plates

Product specification

An important note about specifying

Manufacturer

Name:

Lorient Polyproducts Ltd

Tel:

+44 (0)1626 834252

Product reference

[Firemaster Fire and Smoke Resistant Letterplate Ref: LRJS 29063]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8042F]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8042S]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8047F]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8047S]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8052F]
[High Performance Fire, Smoke and Security Letterplate Ref: LRJ 8052S]

Finish

[Aluminium]
-
30 minutes fire protection (High Performance).
[Brass]
-
60 minutes fire protection (High Performance).
[Brushed stainless steel]
-
60 minutes fire protection (High Performance).
[Gold anodized aluminium]
-
30 minutes fire protection (Firemaster).
[Silver anodized aluminium]
-
30 minutes fire protection (Firemaster).

Security

[Security Cowl]
[Security Latch]
[Post-box]

Manufacturer details

Endeavour House,
Fairfax Road,
Heathfield Industrial Estate,
Newton Abbot,
Devon, TQ12 6UD
Tel +44 (0)1626 834252
Fax +44 (0)1626 833166
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RIBA CPD