Product Type
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LDBU20-920 (LDBU20-920)

Lorient LDBU20 Door Bottom Upgrade Seal

Length - 920mm

This retro-fit seal is used to upgrade fire door assemblies that have a door bottom clearance that exceeds the 10mm specified in AS1905.1

Key benefits

  • Suitable for upgrading door bottom gaps up to 22mm.
  • Cost savings for building owners as non-compliant fire door assemblies may be salvaged rather than replaced.
  • Incorporates a waterproof high performance intumescent strip and silicone rubber gasket.
  • Simple screw fix installation.

Standard lengths
820mm, 920mm and 1220mm.

Gap sizes
11mm - 24mm*.

*please refer to our technical brochure “Retrofit Sealing Solutions for Noncompliant
Fire Door Assemblies” regarding maximum allowable gap sizes.

Fixing method
Screw fixed to door bottom.

Silver anodised aluminium with grey gasket.

Fire: Tested in accordance with AS1530.4 on proprietary AS1905.1 fire door assemblies for up to 4 hour rating.