LDBU Door Bottom & Intumescent Fire Seal

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

LDBU Door Bottom & Intumescent Fire Seal

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, 1070mm 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.
Finishes
Silver anodised aluminium with grey gasket.
Approvals
Fire: Tested in accordance with AS1530.4 on proprietary AS1905.1 fire door assemblies for up to 4 hour rating.
General
LDBU Lorient door bottom upgrade datasheet(PDF, 155 KB)
LDBU fitting instruction(PDF, 517 KB)
Lorient Retro-fit Solutions brochure(PDF, 3 MB)
CAD
CAD drawing LDBU(DWG, 105 KB)

Similar products

LDPU Intumescent Fire Seal
This slim high performance intumescent fire seal is used to upgrade fire door assemblies that have perimeter clearances exceeding the 3mm specified in AS1905.1.