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Forza - Defining Doors
Veneer Guide

Contractors Installation Statement

All installation contractors are requested to complete the contractor's installation statement on completion of the project and present the signed document to the responsible person representing the building occupier.

FD_Door_Cert_Web_Version_AW3-1.jpg

 

Contractor's door and frame installation guide

In order to comply with the building regulations and the relevant British Standards, installation contractors are required to install Forza fire doors and frames in accordance with the following guidelines:

FD30 & FD60 Installation of Hardware Guidance

1. Hinges

A variety of hinges have been successfully tested with the door leaves assessed. Hinges may be used, subject to compliance with the specifications below.

Hinge type:

Fixed pin, washered butt, ball bearing butt, lift-off type or jounal supported hinges may be used.

Number of hinges:

2no (1 pair) per leaf on leaves up to 1981mm high

3no (1½ pairs) per leaf on leaves up to 2400mm high

4no (2 pairs) per leaf on leaves greater than 2400mm high

Positions:

The top hinge must be positioned 120-180mm dwon from the head of the leaf to the top of the hinge and the bottom hinge positioned 200-250mm up from the foot of the leaf to the bottom of the hinge. The middle hinge(s) must be either equispaced between the top and bottom hinge, or 200-250 below the top hinge.

Fixings:

Steel screws, as recommended by the hinge manufacturers, but in no case smaller than No 8 (3.8mm diameter) by 32mm long, and having thread for the full length. Position of screws (in relation to the door face) in blades of alternative hinge types shall be similar to hinges tested with the proposed door type.

Hinge blade sizes:

2.5-3.5mm think by 89-110mm high by 30-36mm width. (these dimensions refer to the blade size, i.e. the part of the hinges that are recessed into the edge of the leaves/frame.)

Hinge materials:

Brass, Phosphor Bronze, Steel or Stainless Steel. (Aluminium, Nylon or 'Mazac' are not permitted.) No combustible or thermally softening materials to be included.

Additional protection:

FD30 - Not required.

FD60 - Hinge Blades to be bedded on 1mm thick low pressure forming intumescent material and a minimum 10mm width of intumescent seal shall be continuous alsongside the hinge blades.

Non-cranked butts and spring hinges(single or double action) are not suitable for use on doors approved within the scope of this generic assessment, although they may be suitable on the basis of an individual and specific fire engineering evaluation.

2. Mortice Latches/Locks

A variety of locks/latches have been successfully tested with the door leaves assessed. Mortice latches/locks may be used, subject to compliance with the specifications below.

Latch/lock types:

Mortice latches, tubulat morice latches, sashlocks, deadlocks

Positioning:

Centred at 1000mm (±200mm), above the bottom of the door leaf

Maximum dimensions:

Forend plate: 235mm long x 20mm wide or 200mm long x 25mm wide

Latch body: 20mm thick x 165mm high x 100mm wide

Strikeplate: 235mm long x 20mm wide or 200 mm long x 25mm wide

Materials:

Latches must have no essential part of their structure made from polymeric or other low melting point (<800°C) materials, and should not contain any flammable materials.

Additional protection:

Any forends/keeps longer than 130mm or where they are fitted at the meeting stiles of double doorsets shall be bedded on 1mm thick low-pressure forming intumescent material at least 1mm thick, unless at least 5mm of perimeter intumescent strip rims continuously past the keep

Over-morticing is to be avoided; mortices should be as tight as possible to the latch. If gaps around the case exceed 2mm, then these must be made good with intumescent mastic or sheet material. Holes for spindles or cylinders should be kept as small as is compatible with the operation of the hardware.

Where glazing apertures are also incorporated, and are positioned such that locks/latches are included in the margin between the aperture and door edge, care must be taken to ensure that the effective door 'stile' is not weakened by the mortice. It is a condition of this assessment that, except where tubular latches are employed, the margin must be at least 75mm wider than the lock/latch mortice. If the mortice latch/lock is fitted in line with a 'rail' between two apertures, no part of the lock mortice shall be closer than 50mm to the edge of any aperture.

3. Door Closers

Where required by regulatory guidance or specific fire strategy each hinged door leaf must be fitted with an overhead surface mounted self-closing device unless it is normally kept locked shut and labelled as such with an appropriate sign which complies with BS5499: Part 1:1990.

Concealed overhead and jamb mounted closers are not permitted. Refer to Forza technical department.

The door closer should have been incorporated in a successful fire resistance test to BS 476: Part 22:1987 when fitted to the exposed face of an unlatched timer door assembly, and/or have been assessed to be suitable for inclusion in a timber fire resisting doorset. It should fulfil the requirements of BS EN 1154: 1997 and have a minimum power size of 3.

The closing force of the closer must be sufficient to overcome the resistance of the latch, and smoke seals where fitted. The closer may not be used in any mode of operation which requires any part of the closer to penetrate the gap between the door and the frame, or which requires the stop to be interrupted or mortised.

4. Bolts

Bolts are not necessary for Forza FD30 Double doors. However the extra restraint provided by flush bolts, in association with latches, does, however, have a beneficial effect on leaf size envelopes.

Unless Specific fire test evidence is available, all bolts shall be steel. The following limitations and protection apply;

  • Maximum size of flush bolt is 250mm long x 20mm wide and 19mm deep;
  • The head of the leaf and/or frame should contain a minimum 5mm width of intumescent material local to the bolt/keep plate;
  • The body of the bolt should be bedded on non-pressure forming intumescent material at least 1mm thick;
  • Edge fixed bolts shall be positioned centrally in the leaf thickness;
  • There should be a minimum of 5mm width of intumescent strip in the door edge, past the body of the bolt;
  • Flush bolts are not approved on doors with rebated overpanels, since this will clash with the rebate alignment. Surface mounted bolts may be used; see below;
  • Face fixed flush bolts shall be fixed so that there is a minimum of 50mm between the bolt and the door edge;
  • Surface mounted barrel bolts shall not exceed 400mm in length, but there is no limitation on their width. Screws for fizing bolts must be at least 25mm long, and have thread for the full screw length.
5. Floor Springs and Accessories

Floor springs and accessories )straps and top pivots) are necessary for double action assemblies. Floor springs and accessories may be used, subject to having appropriate fire test or assessment evidence for use on timber door assemblies of similar construction to that proposed, and the following limitations;

  • Incorporation of any intumescent gasketry used in the test;
  • Continuation of at least 10mm (total width) of the intumescent edge seals in leaf or frame head (as applicable); either 5mm along both sides of the top strap/pivot for double acting straps, or 10mm on one side for single acting straps;
  • Minimum 1mm thick intumescent sheet must line the mortise of the top strap and pivot in both the door leaf and frame head (or as supplied by the floor spring manufacturer);
  • No removal of the timber or intumescent strip at the leaf stile (except for a 6-8mm diameter access hole for the top strap adjustment screw).
6. Non-Essential Hardware Items

6.1. Letter plates

These must be tested, assessed or otherwise approved for use in 44mm thick (or less) cellulosic FD30 doors. They must be fitted in accordance with the manufacturer's instructions, including all intumescent liners and flaps. Plates must not be less than 100mm away from the leaf edge, or any other aperture

(the installation of such items in a door leaf may compromise its performance as a smoke control doorset.)

6.2. Push plate, kick plates, etc

Plastic, pvc or metal plates may be surface-mounted to the doorsets, but, if more than 800mm in length by nominally 200mm wide, they must be attached in a way that would prevent them distorting the door leaf, e.g. glued with thermally softening adhesive or screwed with shor aluminium screws and fitted in such a way so they will not be prevented from falling away by being trapped under door stops, glazing beads or handle escutcheons etc.

6.3. Pull handles

These may be fixed to the doorsets, provided that the fixing points are no greater than 1065mm apart. Pull handles that are fixed through the leaf should use clearance holes as close fitting as possible to the bolt.

6.4. Intumescent air transfer grilles

These must be tested, assessed or otherwise approved for use with 44mm thick (or less) cellulosic FD30 doors. They must be fitted fully in accordance with the manufacturer's instructions, including all intumescent liners and cloaking grilles/beads. They must be no larger

than that for which test or assessment evidence exists. See vision panel size limits for restrictions on maximum size and placement of any apertures which must also be included in the total area permitted for apertures given .

(The installation of such items in a door leaf may compromise its performance as a smoke control doorset)

6.5. Security viewers

These may be fixed into the proposed doors, subject to the following limitations, unless specific fire test evidence exists to the contrary;

  • Viewers must not exceed 15mm diameter, and be made from brass or steel;
  • Holes bored through the door must be no greater than 1mm larger than the bore of the viewer and must be lined with a non-pressure forming intumescent mastic/sheet;
  • The viewer must include an effective shutter/cover plate.

6.6. Door selectors

Cable ways to provide for a route for the connection of electric locks/strikes with command units are permitted for use with Forza FCS cores subject to the following:

Door leaf dimensions must not exceed 2100mm x 900mm .

The particular device must be supported by fire evidence to demonstrate suitability for use in timber based doors to the required fire performance.

The device must be fitted precisely in accordance with the manufacturer's test / assessment data, including intumescent seals ,fixings etc.as required for the relevant fire performance.

The cable-ways must be located to provide for a minimum margin of 90mm from any aperture in the door leaf.

The cable-way may be concealed in one of the following methods:

A: An 10mm dia.(max) diameter hole drilled centrally in the door thickness and horizontally across the width of the door at a height of not more than 1500mm above finished floor level and lined with a 2mm thick intumescent gasket.

B: An 8 x 8 mm groove positioned centrally in the door thickness to be applied to the door core before the application of lippings.The groove to be positioned to a maximum height of 15mm above finished floor level passing around the bottom of the leaf and returning to the lock/strike position at the closing stile of the door.

6.7. Door selectors

These are used on double leaf doorsets with rebated meeting stiles, to ensure that the leaves close in sequence. Face fixed items are preferred. Door selectors must not be recessed into the leaf or frame to the extent that they interrupt any intumescent strips. Recesses cut to accommodate these items must be as small/accurately cut as possible.

6.8 Panic Hardware

Panic hardware may be used with Forza door cores provided that the installation does not require the removal of any core material from the door leaf or removal of any timber from the door frame .The panic hardware must not in any way interfere with the self-closing action of the fire door 

6.9 Automatic Threshold Seals

Fully morticed automatic drop threshold seals may be fitted to Forza door leaves provided that the body of the automatic drop seal does not exceed 35mm high x 15mm wide (excluding fixing flanges) . The body of the automatic drop seal must be in aluminium or steel and the device is to be morticed central to the thickness of the door core.

Surface mounted automatic drop seals may be used as an alternative providing the fitting does not require the removal of any door core.

FD90 Installation of Hardware Guidance

1. Hinges

The following  hinges have been successfully tested within the FCH90 doorset and are therefore approved for use.

Hinge

R90 lift-off -HIN-BSS-106/7 (brushed stainless steel)

                  HIN -BZP-100/1(bright zinc plated)

                  HIN -EBP-100/1(electro brassed plate)

                  HIN-SBS-100/1(simulated brushed stainless)

R90 lite butt -HIN-BSS-105 (brushed stainless steel)

Number of hinges:

3no (1½ pairs) per leaf

 

Positions:

The top hinge must be positioned 150-180mm down from the head of the leaf to the top of the hinge and the bottom hinge positioned 180-250mm up from the foot of the leaf to the bottom of the hinge. The middle hinge(s) must be either equispaced between the top and bottom hinge, or 200-250 below the top hinge.

Fixings:          

No.10 Steel screws, having thread for the full length, 50mm long for fixing into the door leaf and 32mm long for fixing into the frame.

Additional protection:

Intumescent protection will be supplied by Forza with all hardware where required and must be incorporated.

2. Mortice Latches/Locks

The following lock/latche has been successfully tested with the door leaves assessed.

Latch/lock types:

R90 BOM-LCK -102

Positioning:

Centred at 975mm (±25mm), above the bottom of the door leaf

Additional protection:

 

Roller catch:

Intumescent protection will be supplied by Forza with all hardware where required and must be incorporated

 

R90 LCK-RCN-100

 
3. Door Closers

The following door closer has been successfully tested with the door leaves assessed.

Overhead Closer

--- R90 power closer CLR-BSS-102

--- R90 eco     closer CLR-BSS-102

4. Bolts   

Surface fixed bolts must be steel or stainless steel and must be located no closer than 100mm from the meeting edges .

5. Non-Essential Hardware Items

5.1. Push plate, kick plates, etc

Plastic, pvc or metal plates may be surface-mounted to the doorsets, but, if more than 800mm in length by nominally 200mm wide, they must be attached in a way that would prevent them distorting the door leaf, e.g. glued with thermally softening adhesive or screwed with short aluminium screws and fitted in such a way so they will not be prevented from falling away by being trapped under door stops, glazing beads or handle escutcheons etc.

5.2 Pull handles

These may be fixed to the doorsets, provided that the fixing points are no greater than 1065mm apart. Pull handles that are fixed through the leaf should use clearance holes as close fitting as possible to the bolt.

5.3 Door selectors

These may be freely applied provided that they are not evasive inthe leaf edges or door frame.

Those that are evasive will require fire resistance /assessment evidence to support there use

5.4 Push Bar /panic ironmongery

Panic ironmongery may be fitted provided that its installation does not require the removal of any timber from the leaf, stop or frame reveal and it in no way interferes with the self -closing action of the door leaf.

CORE FCW90

1.  HINGES

The following hinges have been successfully tested within the FCW90 door set and are therefore approved for use. 

Hinge Type:  Royde & Tucker Hi Load H105 or 207 lift-off type.
Also Fixed pin, washered  butt  ball bearing butt or  journal supported.

Number of hinges: 3 No.(1.5pairs) per leaf.

Positions:  Top hinges to be set 200mm and 400mm down from the leaf head to the top of the hinge with the bottom hinge set 200mm up from the bottom of the leaf to the bottom of the hinge. ( All positions +/-25mm)

Fixings:   Steel screws , as recommended by the hinge manufacturers, but in no case smaller than No.8 (3.8mm diameter0 by 32mm long and having thread full length.

Position of screws (in relation to the door face) in blades of alternative hinge shall be similar to hinges Royde & Tucker.

Hinge blade sizes: 2.4 - 3.5mm thick  by 89 - 110mm  by 30 - 32mm wide.

(These dimensions refer to the blade size , i.e. the part of the hinges that are recessed into the edge of the leaves/ frames)

Hinge materials:  Steel or Stainless Steel.(Aluminium, Nylon or Mazac are not permitted.) No combustible or thermally softening materials to be included.

Additional protection: All hinge blades must be bedded on minimum 1mm thick non-pressure forming intumescent material.

Rising butt, non-cranked butts and spring hinges (single or double action ) are not suitable for use in this generic assessment  but may be suitable  subject to an individual specific evaluation.

2. MORTICE LATCHES/LOCKS
Latch/lock types:   Mortice latches, tubular mortice latches, sashlocks deadlocks.

Maximum dimensions: Forend plate   235mm long x 22mm wide.
 Latch body   18mm thick.
 Strikeplate      165mm long x 22mm wide.

mortice latches or locks  should be centred at 1000mm(+/-200mm) above the bottom of the door leaf.

Latches must have no essential part of their structure made from polymeric or other low melting point (<800C) materials and should not contain any flammable materials

The latch keep must be bedded on minimum 1mm thick non -pressure forming intumescent material.

Over morticing is to be avoided ; mortices should be as tight as possible to the latch.

If gaps around the case exceed 2mm ,then the gap must be made good with intumescent mastic . Holes for spindles should be kept as small as is compatible with the operation of the hardware .

Where glazing apertures are fitted to the leaf and are positioned such that locks/latches are included in the margin between aperture and door edge  then the margin must be at least 75mm wider than the lock/latch mortice.  If the mortice latch/ lock is fitted in line with a 'rail' between apertures , no part of the lock mortice shall be closer than 50mm to the edge of any aperture.

3.  DOOR CLOSERS
Each hinged door leaf must be fitted with a self-closing device of the correct power rating for the width and weight of the leaf (minimum power size 3), be fitted according to the  manufacturer's  instructions for an FD90 rated closer and be adjusted so that it is  capable of fully closing the leaf against any friction imposed by the latch (and smoke seals if fitted) from any  position of closing.

Only face fixed overhead door closers (and accessories such as soffit brackets) that have been tested , assessed or otherwise approved for use on unlatched cellulosic door leaves may be used . Any accessory that is located within the door reveal must have manufacturer's appropriate test or assessment evidence.

Where areas of uninsulated glazing are adjacent to the closer, the selected closer type must have been tested on the unexposed face of an uninsulated steel door, or a fully glazed door with uninsulating glass to demonstrate that the closer does not emit flammable fluids onto the glass face that would otherwise cause integrity failure before the required 90 minute integrity.

4.  NON-ESSENTIAL HARDWARE
Push plates, kick plates etc.

Plastic, PVC or metal plates may be surface mounted  to door leaves but if more than 800mm in length x 200mm wide they must be attached in a way that would prevent them distorting the door leaf, eg. glued with thermally softening adhesive.

Or screwed with short aluminium screws and fitted in such a way so they will not be prevented from falling away by being trapped under door stops, glazing beads or handle escutcheons etc.

Pull handles:
These may be fixed to the doorsets provided that the fixing points are no greater than 500mm apart. Pull handles that are fixed through the leaf should use clearance holes as close fitting as possible to the bolt.

Drop seals:
Lorient IS8010 or Norsound Nor 810S threshold dropseals can be fitted into the bottom edge of FD90 leaves providing that they are encased in 1mm thick non-pressure forming intumescent material and are positioned centrally within the leaf thickness.

FD120 Installation of Hardware Guidance

1. Hinges

The following hinges have been successfully tested within the FCH90 doorset and are therefore approved for use.

Hinge

R120 butt hinge    HIS-BSS-102 (brushed stainless steel)

Number of hinges:

3no (1½ pairs) per leaf

 

Positions:

The top hinge must be positioned 150-180mm down from the head of the leaf to the top of the hinge and the bottom hinge positioned 180-250mm up from the foot of the leaf to the bottom of the hinge. The middle hinge(s) must be either equispaced between the top and bottom hinge, or 200-250 below the top hinge.

Fixings:         

No.10 Steel screws, having thread for the full length, 50mm long for fixing into the door leaf and 32mm long for fixing into the frame .

Additional protection:

Intumescent protection will be supplied by Forza with all hardware where required and must be incorporated

 
2. Mortice Latches/Locks

The following lock/latche has been successfully tested with the door leaves assessed.

Latch/lock types:

R120  sashlock  BOM-LCK -103

Positioning:

Centre line of spindle 1020mm above the bottom of the door leaf

Additional protection:

Intumescent protection will be supplied by Forza with all hardware where required and must be incorporated

 
3. Door Closers

The following door closer has been successfully tested with the door leaves assessed.

Overhead Closer --- R120 power closer CLR-BSS-103                     

4. Non-Essential Hardware Items

4.1. Push plate, kick plates, etc

Plastic, pvc or metal plates may be surface-mounted to the doorsets, but, if more than 800mm in length by nominally 200mm wide, they must be attached in a way that would prevent them distorting the door leaf, e.g. glued with thermally softening adhesive or screwed with short aluminium screws and fitted in such a way so they will not be prevented from falling away by being trapped under door stops, glazing beads or handle escutcheons etc.

4.2 Pull handles

These may be surface fixed to the doorsets, provided that the fixing points are no greater than 1000mm apart. Through fixings are not permitted.

4.3 Push Bars

Push bars as activation for latches can be fitted provided that its installation does not require removal of any timber from the leaf, stop or frame reveal and in no way interferes with the self closing action of the door leaf.

CORE FCW120

1.HINGES
The following hinges have been successfully tested within the FCW90 door set and are therefore approved for use.

Hinge Type:  Royde & Tucker Hi Load H105 or 207 lift-off type. 
Also Fixed pin, washered  butt  ball bearing butt or  journal supported.

Number of hinges: 3 No.(1.5pairs) per leaf.

Positions:  Top hinges to be set 200mm and 400mm down from the leaf head to the top of the hinge with the bottom hinge set 200mm up from the bottom of the leaf to the bottom of the hinge. ( All positions +/-25mm)

Fixings:   Steel screws, as recommended by the hinge manufacturers, but in no case smaller than No.8 (3.8mm diameter 0 by 32mm long) and having thread full length.

Position of screws (in relation to the door face) in blades of alternative hinge shall be similar to hinges Royde & Tucker.

Hinge blade sizes: 2.4 - 3.5mm thick  by 89 - 110mm  by 30 - 32mm wide. (These dimensions refer to the blade size , i.e. the part of the hinges that are recessed into the edge of the leaves/ frames).

Hinge materials: Steel or Stainless Steel. (Aluminium, Nylon or Mazac are not permitted) No combustible or thermally softening materials to be included.

Additional protection: All hinge blades must be bedded on minimum 1mm thick non-pressure forming intumescent material.

Rising butt, non-cranked butts and spring hinges (single or double action) are not suitable for use in this generic assessment but may be suitable subject to an individual specific evaluation.

2. MORTICE LATCHES/LOCKS
Latch/lock types:   Mortice latches, tubular mortice latches, sashlocks deadlocks.

Maximum dimensions : Forend plate   235mm long x 22mm wide.
  Latch body   18mm thick.
          Strikeplate      165mm long x 22mm wide.

Mortice latches or locks should be centred at 1000mm(+/-200mm) above the bottom of the door leaf.

Latches must have no essential part of their structure made from polymeric or other low melting point (<800C) materials and should not contain any flammable materials.

The latch keep must be bedded on minimum 1mm thick non-pressure forming intumescent material.

Over morticing is to be avoided; mortices should be as tight as possible to the latch.

If gaps around the case exceed 2mm, then the gap must be made good with intumescent mastic . Holes for spindles should be kept as small as is compatible with the operation of the hardware.

Where glazing apertures are fitted to the leaf and are positioned such that locks/latches are included in the margin between aperture and door edge then the margin must be at least 75mm wider than the lock/latch mortice.  If the mortice latch/ lock is fitted in line with a 'rail' between apertures, no part of the lock mortice shall be closer than 50mm to the edge of any aperture.

3.  DOOR CLOSERS
Each hinged door leaf must be fitted with a self-closing device of the correct power rating for the width and weight of the leaf (minimum power size 3), be fitted according to the manufacturer's instructions for an FD120 rated closer and be adjusted so that it is capable of fully closing the leaf against any friction imposed by the latch (and smoke seals if fitted) from any position of closing.

Only face fixed overhead door closers (and accessories such as soffit brackets) that have been tested, assessed or otherwise approved for use on unlatched cellulosic door leaves may be used. Any accessory that is located within the door reveal must have manufacturer's appropriate test or assessment evidence.

Where areas of uninsulated glazing are adjacent to the closer, the selected closer type must have been tested on the unexposed face of an uninsulated steel door, or a fully glazed door with uninsulating glass to demonstrate that the closer does not emit flammable fluids onto the glass face that would otherwise cause integrity failure before the required 120 minute integrity.

4. NON-ESSENTIAL HARDWARE
Push plates, kick plates etc.

Plastic, PVC or metal plates may be surface mounted to door leaves but if more than 800mm in length x 200mm wide they must be attached in a way that would prevent them distorting the door leaf, eg. glued with thermally softening adhesive.

Or screwed with short aluminium screws and fitted in such a way so they will not be prevented from falling away by being trapped under door stops, glazing beads or handle escutcheons etc.

Pull handles: These may be fixed to the doorsets provided that the fixing points are no greater than 500mm apart. Pull handles that are fixed through the leaf should use clearance holes as close fitting as possible to the bolt.

Drop seals: Lorient IS8010 or Norsound Nor 810S threshold dropseals can be fitted into the bottom edge of FD90 leaves providing that they are encased in 1mm thick non-pressure forming intumescent material and are positioned centrally within the leaf thickness. 

FD30 & FD60 Frame Installation

Frame Installation, Supporting Construction and Door Edge Gaps

The frames must be fixed back to the supporting construction with steel fixings at centres not exceeding 600mm on the vertical edges (minimum 200mm from the top and bottom), and a minimum of one fitted centrally across the width of the frame head of double doors. Screws shall be of sufficient length to penetrate the wall by at least 40mm, and shall be positioned such that they are not exploited by charring of the frame, irrespective of the direction of test exposure; (this may necessitate a twin line of screws). Packers shall be used at all fixing positions, although if combustible packers are employed, these must be protected by a layer of firestopping (see below) aligned near to each face of the door frame. 

The supporting construction may be timber or steel stud plasterboard partition, blockwork, steel stud demountable partition, brickwork or concrete wall, but shall be of a type that has been tested or assessed to provide in excess of 30/60 minutes fire resistance, at the required size, when incorporating fd30/fd60 doorset openings. If fitted into timber or steel stud partitions, the method of forming the doorset aperture must be as tested by the partition and/or doorset manufacturer. 

No part of the rear of the frame section shall be exposed once installed, (except for integral architraves) and leaves must not protrude beyond the exposed face of the doorframe. 

There shall be no feature rebates or shadow gaps at the junction of the frame and wall with steel or aluminium frames. (Project specific features may be assessed on an individual basis) 

In timber frames shadow gap details may be included in the supporting construction or in a frame extension at the interface of the frame and wall as detailed in Summary drawing(s) reference FZD0098/0099/0101/0102 

The fire stopping between the supporting construction and timber frames should follow the recommendations of Table 2 in BD8214: 2008, "Code of practice for fire door assemblies", using a product proven in such timber applications, and with reference to the correct depth of seal to suit the width of gap between wall and frame. The firestopping shall be positioned on the plane of the door leaf (unless combustible packers are employed). 

The gap between the door and the frame or between meeting stiles (and between double doors and overpanel where applicable) should be 1.5-4mm. Gaps under the door(s) should not exceed 6mm for fire performance, although, if smoke control is also required, these gaps should only be 3mm, or smoke seals should be included in accordance with BS8214. 

The doorset design should be such that single acting leaves are fully flush within the frame when closed and double acting doors should be centred on the frame depth. The face of leaves in double doorsets should be flush with each other at meeting stiles when closed. 

Overpanels shall be secured into the frame using steel screws fixed through the rear of the frame members, passing at least 40mm into the centre of the overpanel thickness. (Screws must not be fixed through the overpanel into the stops, or vice versa). Screws must be no more than 100mm from each corner of the overpanel, and at maximum 400mm centres, with a minimum of 2no. Screws per overpanel edge. This specification applies to overpanels used with or without a transom. The gap between overpanel and frame should not exceed 3mm. 

Method of head/jamb jointing 

The following methods of jointing may be used for the construction of flush or rebated Frames suitable for Fd30 and Fd60 fire door applications. 

Butt Joint. Glued with non-thermally softening adhesive & head twice screwed to each jamb. 

Mortice and tenon . Head twice screwed to each jam 

Half Lapped. Head twice screwed to each jamb 

Mitred .Glued with non-thermally softening adhesive & head twice screwed to each jamb. 

Architraves: are optional and have no fire performance requirements . 

FD90 & FD120 Frame Installation

Frame Installation, Supporting Construction and Door Edge Gaps 

The frames must be fixed back to the supporting construction with steel fixings at centres not exceeding 600mm on the vertical edges (minimum 150mm from the top and bottom), and a minimum of one fitted centrally across the width of the frame head of double doors. Screws shall be of sufficient length to penetrate the wall by at least 40mm, and in timber shall be positioned such that they are not exploited by charring of the frame, irrespective of the direction of test exposure; (this may necessitate a twin line of screws). Packers shall be used at all fixing positions, although if combustible packers are employed, these must be protected by a layer of firestopping (see below) aligned near to each face of the door frame. 

The supporting construction may be timber or steel stud plasterboard partition, blockwork, steel stud demountable partition, brickwork or concrete wall, but shall be of a type that has been tested or assessed to provide in excess of 90/120 minutes fire resistance, at the required size, when incorporating FD90/FD120 doorset openings. If fitted into timber or steel stud partitions, the method of forming the doorset aperture must be as tested by the partition and/or doorset manufacturer. 

No part of the rear of the frame section shall be exposed once installed, (except for integral architraves) and leaves must not protrude beyond the exposed face of the doorframe. 

There shall be no feature rebates or shadow gaps at the junction of the frame and wall (Project specific features may be assessed on an individual basis) 

The fire stopping between the supporting construction and frames should be as tested or using a product proven in such applications , and with reference to the correct depth of seal to suit the width of gap between wall and frame, with architraves as required, for the required period of fire resistance. . The fire stopping shall be positioned on the plane of the door leaf (unless combustible packers are employed). 

The gap between the door and the frame or between meeting stiles (and between double doors and overpanel where applicable) should be 2 -3.5 mm. Gaps under the door(s) should not exceed 6mm for fire performance, although, if smoke control is also required, these gaps should only be 3mm, or smoke seals should be included in accordance with BS8214. 

The doorset design should be such that leaves are fully flush within the frame when closed. The face of leaves in double doorsets should be flush with each other at meeting stiles when closed. 

Transommed overpanels shall be secured into the frame using steel screws fixed through the rear of the frame members, passing at least 40mm into the centre of the overpanel thickness. (Screws must not be fixed through the overpanel into the stops, or vice versa). Screws must be no more than 100mm from each corner of the overpanel, and at maximum 400mm centres, with a minimum of 2no. Screws per overpanel edge. The gap between overpanel and frame should not exceed 3mm. 

Method of head/ jamb jointing 
Mortice and tenon , head twice screwed to each jamb . 

Architraves: are optional and have no fire performance requirements

fis1.jpg GAI_thumb-56px.jpgACS Logos1.jpgribalogo_thumb_56px.jpgForza Doors specification summaries are available through the RIBA Product Selector and NBs Plus