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FDBU60-45-1220 CA (FDBU60-45-1220 CA)

Kilargo FDBU60 Intumescent Fire Door Bottom Upgrade Seal

The FDBU60 door bottom seal allows upgrading of both nominal 35mm thick (mini) fire doors and 45mm thick (maxi) fire doors (where door bottom gaps exceed the allowable 10mm, as per AS1905 Part 1), and can accommodate a door bottom clearance of up to and including a maximum of 60mm.

This seal can be easily installed without removing the door leaf.

Door Bottom Seals

Seals that are designed to fill the gap between the bottom of a door and the floor are called Door Bottom Seals.

There are two common versions of these seals; the mechanically lifting automatic seal and the sweep seal. The operation of both of these seals is enhanced when they are used in conjunction with a low profile threshold plate which has been fixed to the sill immediately under the door.

The automatic door bottom seal lifts automatically as the door is opened and conversely lowers to seal as the door is closed. This ensures that the seal does not impede the normal function of the door, allowing the seal to lift clear of carpets and other obstacles. They look neat if face mounted to the door and some versions can even be fully morticed into the door, out of sight.

The sweep seal operates by bringing a flexible seal, mounted on the door, into contact with a low profile threshold plate. The seals are often made of a strip of flexible PVC (rubber or brush) mounted into an aluminium holder.

Note: Ensure that the floor surface is lower than the sealing surface of the threshold plate to avoid sweep seal from fouling.