Fire doors

General fire door installation instructions

General fire door installation instructions

Points to check before installation

a)  Check that the installer’s declaration has been received. This form is to be completed and returned for the issuing of fire door certification labels.

b) Check that all hardware and fixings are on hand. All fire doors are required to have door closers and a self-latching or locking system. All hardware fitted to fire doors must comply with fire rating approvals. If unsure, please check with New Zealand Fire Doors or refer to the Design Guide on our website www.nzfiredoors.co.nz.

Installation instructions 

a) Check the required sill gap (be sure to make allowances for floor coverings). Trim or pack the bottom of jambs to reduce or increase sill gaps, as required.

b) Position doorset in opening, ensuring square and true.

Timber and Steel Stud walls

Wedge/pack gap between back of jamb and framing. Nail or screw-fix (100mm nails, 75mm screws) at and opposite hinge points and at head. Fixings are to be concealed by the planted stops (fitted later). Wall linings are to slot into jamb rebates where applicable, to seal the wedging gap. Where linings do not slot into the back of the jambs, the wedging gap is to be back-filled (with Kaowool, Rockwool, fire rated foam or Intumescent mastic sealant). If fire rated linings slot into grooves or rebates in the jambs on both faces, the wedging gap does not need to be back-filled for fire requirements, but may be required for acoustic requirements.

  • T1 Timber StudT1 Installation Timber Stud
  • T2 Timber StudT2 Installation Timber Stud
  • T3 Timber StudT3 Installation Timber Stud
  • T1 Steel StudT1 Installation Steel Stud
  • T2 Steel StudT2 Installation Steel Stud
  • T3 Steel StudT3 Installation Steel Stud

Masonry walls

Pack and fix (min. 9mm diameter x 100mm long masonry bolts) at and opposite hinge points and at head. Fixings are to be concealed by the planted stops (fitted later). Stop the wedging gap between the jamb and masonry using Intumescent mastic sealant.

  • T1 Installation Masonry StudT1 Masonry Stud

c) Fit the latch to doorleaf using parallel shank screws. Pre-drill holes. Adjust to ensure that the door latches automatically, from any position.

d) Fix planted stops using 50mm jolt head nails at 300mm centres.(see tolerance table and sketch below for fitting of smoke seal after painting).

e) Fit closer to doorleaf using parallel shank screws. Pre-drill holes. Adjust to ensure that the door latches automatically, from any position.

f) Complete the installers declaration and return promptly to the door manufacturer. Labels will be dispatched with fitting instructions.

Paint Quality doors

Priming and finish coating must be carried out according to paint manufacturers recommendations for Triboard substrate to achieve optimal results.

Intumescent strips do not need to be masked for painting; intumescent performance is rated for up to 5 coats of paint. Do not paint over brush or rubber smoke seals.

Double Acting doors

Notes set out above apply to most aspects of installation. Normally double acting doorsets come with concealed transom closers, supplied and fitted. Floor spring closers are available, for fitting by others on site.

Tolerances

Door jamb to steel stud

10mm max (timber braced)

Door jamb to timber stud 

10mm max.

Door jamb to masonry wall  

10mm max.

Leaf to door jamb

 4mm max. (Must open & close freely)

Leaf to finished floor level

10mm (plus thickness of floor covering, to a maximum of 25mm over FFL)

Leaf to face of stop (before seal fitted)

5mm (smoke seal fitted after painting)

Between pairs of doors

Brush-seal must touch opposite leaf (see NZFD if longer brush is reqd – extra cost)

 

Steel jamb back filling requirements (Insulation values)

SF BFilling