fire test

Title:

The fire resistance performance of a fully insulated, single-acting single-leaf doorset when tested in accordance with BS 476: Part 22: 1987, Clause 6.

WF Report No:

175383/A

Prepared for:

Trade Mouldings Ltd Cookstown Business Park Sandholes Road Cookstown Business Park Tyrone BT80 9DW

Date: 7th November 2008

Notified Body No:

0833

0249

WF Test Report No. 175383/A

Page 2 of 25

Summary Objective To determine the fire resistance performance of a fully insulated single-acting,

single-leaf doorset, when tested in accordance with BS 476: Part 22: 1987, Clause 6.

Sponsor Trade Mouldings Ltd, Cookstown Business Park, Sandholes Road, Cookstown Business Park, Tyrone, BT80 9DW

Summary of the Tested Specimens

For the purposes of the test the doorset was referenced ‘Doorset A’. Another doorset referenced ‘Doorset B’ was tested simultaneously and is the subject of a separate letter report referenced WF Test Report No. 175383/B.

Doorset A was of overall dimensions 2080 mm high by 992 mm wide, with a door leaf of overall dimensions 2040 mm high by 926 mm wide by 44 mm thick comprising softwood stiles and rails, a flaxboard core, medium density fibreboard facings and hardwood lippings on the vertical edges. The leaf was hung within a medium density fibreboard frame referenced ‘Trade Mouldings Kronspan’, on three stainless steel hinges. The Doorset opened towards the heating conditions of the test and was latched for the duration of the test.

Test Results: Doorset A

Integrity 31 minutes

Insulation 31 minutes

The test was discontinued after a period of 52 minutes.

Date of Test 11th August 2008

This report may only be reproduced in full. Extracts or abridgements of reports shall not be published without permission of Bodycote warringtonfire.


Page 3 of 25

Signatories

Responsible Officer S. Gilfedder* Testing Officer

Approved A. Kearns* Technical Manager

* For and on behalf of warringtonfire. Report Issued Date : 7th November 2008

This copy has been produced from a .pdf format electronic file that has been provided by Bodycote warringtonfire to the sponsor of the report and must only be reproduced in full. Extracts or abridgements of reports must not be published without permission of Bodycote warringtonfire. The original signed paper version of this report is the sole authentic version. Only original paper versions of this report bear authentic signatures of the responsible Bodycote warringtonfire staff.


Page 4 of 25

CONTENTS PAGE NO.

SUMMARY.................................................................................................................................. 2 SIGNATORIES............................................................................................................................ 3 TEST PROCEDURE...................................................................................................................... 5 TEST SPECIMEN ........................................................................................................................ 6 SCHEDULE OF COMPONENTS .................................................................................................. 10 DOORSET CLEARANCE GAPS ................................................................................................... 12 INSTRUMENTATION................................................................................................................ 13 TEST OBSERVATIONS.............................................................................................................. 14 TEST PHOTOGRAPHS............................................................................................................... 15 TEMPERATURE AND DEFLECTION DATA ................................................................................. 18 PERFORMANCE CRITERIA AND TEST RESULTS....................................................................... 24 ONGOING IMPLICATIONS....................................................................................................... 24 CONCLUSIONS ........................................................................................................................ 25


Page 5 of 25

Test Procedure Doorset A was of a fully insulated construction. The test was therefore conducted in accordance with Clauses 6 of BS 476: Part 22: 1987 'Methods for determination of the fire resistance of non-loadbearing elements of construction'. This test report should be read in conjunction with that Standard and with BS 476: Part 20: 1987, 'Methods for determination of the fire resistance of elements of construction (general principles)'.

Introduction

The specimen was judged on its ability to comply with the performance criteria for integrity and insulation as required by BS 476: Part 22: 1987.

Fire Test Study Group/EGOLF

Certain aspects of some fire test specifications are open to different interpretations. The Fire Test Study Group and EGOLF have identified a number of such areas and have agreed Resolutions which define common agreement of interpretations between fire test laboratories which are members of the Groups. Where such Resolutions are applicable to this test they have been followed.

Instruction to test

The test was conducted on the 11th August 2008 on behalf of Trade Mouldings Ltd, the sponsor of the test.

Test Specimen Construction

A comprehensive description of the test construction is given in the Schedule of Components. The description is based on a detailed survey of the specimens and information supplied by the sponsor of the test.

Installation The doorsets were mounted within apertures in an aerated blockwork wall construction such that their door leaves opened towards the heating conditions of the test. Representatives of Bodycote warringtonfire conducted the installation work on the 8th August 2008.

Sampling Bodycote warringtonfire was not involved in any selection or sampling procedures for the tested specimens.

Conditioning The specimens’ storage, construction, and test preparation took place in the test laboratory over a total, combined time of 4 days. Throughout this period of time both the temperature and the humidity of the laboratory were measured and recorded as being within a range of from 18oC to 24oC and 44% to 88% respectively.


Page 6 of 25

Test Specimen Figure 1- Elevation of unexposed face of the doorset built into a specimen restraint frame

3050

3035

POSITIONS OF UNEXPOSED FACE TEMPERATURE THERMOCOUPLES.

SPECIMEN RESTRAINT FRAME

SPECIMEN BUILT INTO A MASONRY WALL CONSISTING OF AAC (AUTOCLAVED AERATED CONCRETE) BLOCKWORK WALLS, LINTEL AND BASE, NOMINALLY 150 MM THICK.DOOR LEAF OPENS TOWARDS THE HEATING CONDITIONS OF THE TEST.

3

65

4

2

995

LATC

H

992 FRAME

2080

FRAM

E

926 LEAF

2040

LEA

F

265

790

HIN

GE

790

12

13 14

THIS DOORSET REPORTED SEPARATELY

7

8

6

5

Do not scale. All dimensions are in mm


Page 7 of 25

Figure 2 – Elevation of exposed face of doorset

992 FRAME20

80 F

RAM

E926 LEAF

2040

LEA

F

265

790

HIN

GE

790

170

170

170

130

750

530

530

FRAME FIXING POSITIONS

WALL OPENING SIZE: 1000 x 2080

ELEVATION OF EXPOSED FACE



Page 8 of 25

Figure 3 – Horizontal and vertical sections through doorset

TYPICAL VERTICAL SECTION THROUGH DOORSET

TYPICAL HORIZONTAL SECTION THROUGH DOORSET

3FIRE SIDE

FIRE SIDE

5BLOCK WALL BLOCK WALL

CONCRETE LINTEL

1

2

4



Page 9 of 25

Figure 4 – Details of door frame

4

15

4

751230

95

130

19

72

105 19

25

95

95

X

VIEW ON 'X' OF INSIDE OF ARCHITRAVE, SHOWING CORNER JOINTING

FRAME AND ARCHITRAVE SECTION - ITEM 1

STEEL CLIP WITH SET SCREW AT CORNERS, FITTED INTO ROUND POCKETS



Page 10 of 25

Schedule of Components (Refer to Figures 1 to 4) (All values are nominal unless stated otherwise) (All other details are as stated by the sponsor) Item

Description

1. Door frame Manufacturer : Trade Mouldings Reference : Kronospan Material : Medium density fibreboard to BS EN 622-1:2003 and EN

622-5:2006, with a real wood veneer finish Sizes : See Figure 4 for overall frame sizes. Veneer thickness

0.4 mm Fixing i. method : Countersunk steel screws and plugs through jambs ii. size : 125 mm long x 5 mm diameter iii. frequency : See Figure 2 for positions 2. Door stop Manufacturer : Trade Mouldings Reference : Kronospan Material : Medium density fibreboard to BS EN 622-1:2003 and EN

622-5:2006, with a real wood veneer finish Sizes : See Figure 4 for overall door stop sizes. Veneer

thickness 0.4 mm Fixing : Steel nail pins and adhesive to frame 3. Architrave Manufacturer : Trade Mouldings Reference : Kronospan Material : Medium density fibreboard to BS EN 622-1:2003 and EN

622-5:2006, with a real wood veneer finish Sizes : See Figure 4 for overall architrave sizes. Veneer

thickness 0.4 mm Fixing : Steel nail pins and adhesive to frame. Corners mitred

and fixed with steel clips 4. Intumescent seal Manufacturer : Intumescent Seals Ltd Reference : Therm-A-Stop Material : Graphite-based intumescent compound within a plastics

(pvc) casing, fitted with brush piles, incorporating a thin polypropylene fin

Overall size : 15 mm x 4 mm Fixing method : Self-adhesive within a groove in the doorframe

rebate/door leaf edge. Seals interrupted at hinges and strike plate


Page 11 of 25

5. Door leaf Manufacturer : STP Joinery Reference : Certifire approval No. CF150 Door leaf thickness : 44 mm Construction i. general : Construction details of the door leaf are known and are

retained in our confidential file relating to this investigation

ii. stiles and rails : Softwood timber iii. core : Flaxboard iv. faces : Medium density fibreboard with timber veneer v. lippings : Hardwood to vertical edges 6. Hinges Manufacturer : Arrone Architectural plus Reference : 8567837 AR 8180 Primary material : Satin stainless steel Size i. knuckle : 108 mm x 14 mm diameter ii. blades : 100 mm x 30 mm Fixings : 4 No. screws per flap Bedding material : None 7. Latch Reference : TLS 5030 EB/SSS Type : 3” Heavy duty tubular latch Material : Satin stainless steel 8. Handle Manufacturer : Ande; Design Studio Mandelli Reference : Series 450/SF UK PCI Material : Aluminium, satin chrome finish Overall size : 50 mm x 180 mm plate with 120 mm long lever handles


Page 12 of 25

Doorset Clearance Gaps

1 2 3

14

4

13

5

Doorset A

12

6

11

7

10 9 8

View from unexposed face

Door Ref Gap Dimension in mm at Positions

1 2 3 4 5 6 7 8* 9* 10* 11 12 13 14 A

1.8 2.9 3.3 3.0 2.8 2.5 2.6 3.5 3.5 4.2 1.6 1.5 1.5 2.4 A Mean 2.0 Maximum 3.3 Minimum 1.5

* Dimension not included in calculations DO NOT SCALE ALL DIMENSIONS ARE IN mm


Page 13 of 25

Instrumentation

General The instrumentation was provided in accordance with the requirements of the Standard.

Furnace The furnace was controlled so that its mean temperature complied with the requirements of BS 476: Part 20: 1987, Clause 3.1. using six mineral insulated thermocouples distributed over a plane 100 mm from the surface of the test construction.

Thermocouple Allocation

Thermocouples were provided to monitor the unexposed surface of the specimen. The output of all instrumentation was recorded at one minute intervals.

The locations and reference numbers of the various unexposed surface thermocouples are shown in Figure 1.

Roving Thermocouple

A roving thermocouple was available to measure temperatures on the unexposed surface of the specimens at any position that might appear to be hotter than the temperatures indicated by the fixed thermocouples.

Integrity Criteria Cotton pads and gap gauges were available to evaluate the impermeability of the specimens where relevant.

Furnace Pressure After the first five minutes of testing and for the remainder of the test, the furnace atmospheric pressure was controlled so that it complied with the requirements of BS 476: Part 20: 1987, Clause 3.2.2. The calculated pressure differential relative to the laboratory atmosphere was 9.1 (±2) Pa at the top of doorsets.


Page 14 of 25

Test Observations Time All observations are from the unexposed face unless noted otherwise.

mins secs The ambient air temperature in the vicinity of the test construction was 17ºC at the start of the test with no variation during the test.

00 00 The test commences.

02 14 Smoke release starts from the head of Doorset A, on the leading edge side.

03 34 Smoke release increases from Doorset A.

05 30 The exposed face of Doorset A has ignited.

06 56 Smoke release continues from the top leading edge corner of Doorset A.

14 01 Overall smoke release has reduced from Doorset A.

15 00 Viewed from the exposed face the architrave has burn away around Doorset A.

18 41 The leaf of Doorset A is discoloured slightly in the top leading edge corner.

25 00 The exposed face of Doorset A has an even cracked and charred appearance.

26 04 The threshold gap of Doorset A has closed.

27 40 The leaf of Doorset A has bowed towards the furnace in the top leading edge corner.

28 37 Smoke release increases in the top leading end corner of Doorset A between the leaf and the frame.

30 16 Faint glowing is now visible in the top leading edge corner of Doorset A.

31 26 Sustained flaming, top leading edge corner of Doorset A, integrity and insulation failure of Doorset A is deemed to have occurred.

32 50 The area of flaming on Doorset A is sealed off to allow the test to continue.

40 23 Two dark horizontal lines form on the leaf of Doorset A at the top and just below mid-height, as the doorset starts to burn through.

42 54 Doorset A is blanked off.

52 31 The test is discontinued.


Page 15 of 25

Test Photographs

The exposed face of the doorsets prior to testing

The unexposed face of the doorsets prior to the start of the test


Page 16 of 25

The unexposed face of the doorsets after 15 minutes of testing



Page 17 of 25



Page 18 of 25

Temperature and Deflection Data

Mean Furnace Temperature, Together With The Temperature/Time Relationship Specified In The Standard

Time Specified Actual

Furnace Furnace Mins Temperature Temperature

Deg. C Deg. C 0 20 25 2 445 416 4 544 685 6 603 707 8 646 672 10 678 659 12 706 706 14 728 725 16 748 744 18 766 753 20 781 781 24 809 800 26 820 825 28 832 842 30 842 851 32 852 862 34 860 888 36 869 868 38 877 865 40 885 886 42 892 892 44 899 894 46 906 911 48 912 912 50 918 929 52 924 894


Page 19 of 25

Individual And Mean Temperatures Recorded On The Unexposed Surface Of Doorset A

Time T/C T/C T/C T/C T/C Mean

Number Number Number Number Number Temp Mins 2 3 4 5 6

Deg. C Deg. C Deg. C Deg. C Deg. C Deg. C 0 17 18 18 18 18 18 2 17 17 18 18 18 18 4 17 18 18 18 18 18 6 17 18 18 18 18 18 8 18 18 18 18 18 18 10 18 18 19 19 19 19 12 21 20 20 21 21 21 14 25 24 23 24 24 24 16 31 30 28 29 29 29 18 37 36 34 34 35 35 20 43 42 40 40 41 41 24 54 53 51 51 52 52 26 59 58 57 57 57 58 28 64 63 61 62 62 62 30 68 67 66 67 67 67 32 72 71 70 71 71 71 34 76 74 72 75 74 74 36 79 76 75 78 77 77 38 81 79 77 80 80 79 40 83 80 78 82 82 81 42 * * * * * * 44 46 48 50 52

*Doorset blanked off


Page 20 of 25

Individual Temperatures Recorded On The Frame Of Doorset A

Time T/C T/C T/C Number Number Number

Mins 12 13 14 Deg. C Deg. C Deg. C 0 20 20 19 2 19 20 19 4 20 20 19 6 20 20 20 8 20 20 21 10 20 20 21 12 20 20 25 14 20 20 28 16 20 20 29 18 21 20 30 20 21 20 31 24 22 20 33 26 22 21 34 28 23 21 36 30 24 21 37 32 25 21 39 34 26 21 40 36 36 22 43 38 44 22 46 40 49 22 50 42 * * * 44 46 48 50 52

*Doorset blanked off


Page 21 of 25

Graph Showing Mean Furnace Temperature, Together With The Temperature/Time Relationship Specified In The Standard

0

100

200

300

400

500

600

700

800

900

1000

0 10 20 30 40 50 60

Time - Minutes

Tem

per

atu

re -

Deg

. C

Specified Furnace Temperature Deg. C

Actual Furnace Temperature Deg. C


Page 22 of 25

Graph Showing Mean Temperature Recorded On The Unexposed Surface Of Doorset A

0

10

20

30

40

50

60

70

80

90

0 10 20 30 40 50

Time - Minutes

Tem

per

atu

re -

Deg

. C


Page 23 of 25

Measured Deflection Of Doorsets During The Test

A B C

Doorset A

D E F

G

H I

Doorset A Deflections – mm

Time mins A B C D E F G H I

0 0 0 0 0 0 0 0 0 0 5 -4 2 2 5 1 -2 4 4 3 10 -4 1 5 3 0 -2 5 9 5

Positive values indicate deflection towards the furnace


Page 24 of 25

Performance Criteria and Test Results

Integrity It is required that there is no collapse of the specimen, no sustained flaming on the unexposed surface and no loss of impermeability. These requirements were satisfied for a period of 31 minutes by Doorset A (Sustained flaming).

Insulation It is required that the mean temperature rise of the unexposed surface shall not be greater than 140°C and that the maximum temperature rise shall not be greater than 180°C. Insulation failure also occurs simultaneously with integrity failure. These requirements were satisfied for a period of 31 minutes by Doorset A, at which point integrity failure occurred.

Ongoing Implications Limitations The results relate only to the behaviour of the specimens of the element of

construction under the particular conditions of test. They are not intended to be the sole criteria for assessing the potential fire performance of the element in use, nor do they reflect the actual behaviour in fires.

The test results relate only to the specimens tested. Appendix A of BS 476: Part 20: 1987 provides guidance information on the application of fire resistance tests and the interpretation of test data. Application of the result to doorsets of different dimensions or supported other than by a masonry wall or incorporating different components should be the subject of a design appraisal.

The tested assemblies were asymmetrical and were tested such that the door leaves opened towards the heating conditions of the test. The test results may not be appropriate to situations where the door leaves opens away from the heating conditions.

Review The specification and interpretation of fire test methods are the subject of ongoing development and refinement. Changes in associated legislation may also occur. For these reasons it is recommended that the relevance of test reports over five years old should be considered by the user. The laboratory that issued the report will be able to offer, on behalf of the legal owner, a review of the procedures adopted for a particular test to ensure that they are consistent with current practices, and if required may endorse the test report.


Page 25 of 25

Conclusions Evaluation Against Objective

Two fully insulated single-acting, single-leaf doorsets, mounted within an aerated concrete wall, have been subjected to a fire resistance test in accordance withBS 476: Part 22: 1987, Clauses 6.

The evaluation of the doorset against the requirements of BS 476: Part 22: 1987, Clause 6, showed that it satisfied the requirements for the periods stated below:

Test Results: Doorset A

Integrity 31 minutes

Insulation 31 minutes

The test was discontinued after a period of 52 minutes.

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