Bsi bs en 14246 2006 (2007)

Annex ZA informative Clauses of this European Standard addressing provisions of EU Construction Products Directive...29 ZA.1 Scope and relevant characteristics ...29 ZA.2 Attestation and

This British Standard was

published under the authority

of the Standards Policy and

A list of organizations represented on this subcommittee can be obtained on request to its secretary

EN 14246:2006 is a candidate “harmonized” European Standard and fully takes into account the requirements of the European Commission Mandate

M/106, Gypsum products, given under the EU Construction Products Directive

(89/106/EEC), and is intended to lead to CE marking The date of applicability

of EN 14246:2006 as a harmonized European Standard, i.e the date after which this standard may be used for CE marking purposes, is subject to an

announcement in the Official Journal of the European Communities.

EN 14246:2006 is the subject of transitional arrangements agreed under the European Commission mandate The Member States have agreed a nominal transition period for the co-existence of EN 14246:2006 and their

corresponding national standard(s) It is intended that this period will comprise a nominal nine-month period during which any required changes

to national regulations are to be made, followed by a further nominal twelve-month period for the implementation of CE marking At the end of this co-existence period, the national standard(s) will be withdrawn

In the UK, there are no corresponding national standards

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

Compliance with a British Standard cannot confer immunity from legal obligations.

Amendments issued since publication

17317

Corrigendum No 1 31 August 2007 Changes to 6.8.4, 6.9.2 and Annex ZA

EUROPÄISCHE NORM June 2006

ICS 91.100.10

English Version

Gypsum elements for suspended ceilings - Definitions,

requirements and test methods

Eléments en plâtre pour plafonds suspendus - Définitions,

spécifications et méthodes d'essai Gipselemente für Unterdecken (abgehängte Decken) -Begriffe, Anforderungen und Prüfverfahren

This European Standard was approved by CEN on 10 May 2006.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E U R O P É E N D E N O R M A L I S A T I O N

E U R O P Ä IS C H E S K O M IT E E FÜ R N O R M U N G

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2006 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members. Ref No EN 14246:2006: E

Incorporating corrigendum July 2007

Contents Page

Foreword 4

Introduction 5

1 Scope 6

2 Normative references 6

3 Terms and definitions 7

4 Types of gypsum ceiling elements for suspended ceilings 8

4.1 General 8

4.2 Gypsum units 8

4.3 Gypsum tiles 10

5 Requirements 11

5.1 Fire behaviour 11

5.2 Water vapour permeability (expressed as water vapour resistance factor) 12

5.3 Flexural strength (expressed as flexural breaking load) 12

5.4 Acoustic properties 12

5.5 Thermal properties — Thermal resistance (expressed as thermal conductivity) 12

5.6 Regulated substances 13

5.7 Appearance 13

5.8 Dimensions and tolerances 13

5.9 Squareness 14

5.10 Flatness (not for tiles with decorative face) 14

5.11 Mass per unit of surface and tolerance 14

5.12 Moisture content 14

5.13 pH 14

6 Test methods 15

6.1 Sampling 15

6.2 Preparation of the test specimens 15

6.3 Determination of flexural strength 15

6.4 Determination of surface appearance 17

6.5 Measurement of dimensions 17

6.6 Determination of squareness 20

6.7 Determination of flatness (not for gypsum elements with decorated faces) 21

6.8 Determination of the mass per surface unit 21

6.9 Determination of the moisture content 22

6.10 pH measurement 22

6.11 Test report 22

7 Evaluation of conformity 23

7.1 General 23

7.2 Type testing 23

7.3 Factory production control (FPC) 24

8 Designation 25

9 Marking, labelling and packaging 26

Annex A (informative) Sampling procedure for testing 27

A.1 General 27

Annex ZA (informative) Clauses of this European Standard addressing provisions of EU

Construction Products Directive 29

ZA.1 Scope and relevant characteristics 29

ZA.2 Attestation and declaration of conformity of gypsum elements for suspended ceilings 31

ZA.3 CE Marking and labelling 33

Bibliography 35

at the latest by March 2008

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)

For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom

This European Standard describes the reference tests for technical specifications

This European Standard also covers additional technical characteristics that are of importance for the use and the acceptance of the product by the construction industry and the reference tests for these characteristics

It provides for the evaluation of conformity of the product to this European Standard

This European Standard does not cover metal ceiling grids or plasterboard products

This European Standard excludes stiffening timber roof truss structure applications

2 Normative references

The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references; the latest edition of the referenced document (including any amendments) applies

EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using test data from reaction to fire tests

EN 13501-2, Fire classification of construction products and building elements — Part 2: Classification using data from fire resistance tests, excluding ventilation services

EN ISO 140-3, Acoustics — Measurement of sound insulation in buildings and of building elements — Part 3: Laboratory measurements of airborne sound insulation of buildings elements (ISO 140-3:1995)

EN ISO 354, Acoustics — Measurement of sound absorption in a reverberation room (ISO 354:2003)

EN ISO 717-1, Acoustics — Rating of sound insulation in buildings and of building elements — Part 1: Airborne sound insulation (ISO 717-1:1996)

EN ISO 9001:2000, Quality management systems — Requirements (ISO 9001:2000)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply:

gypsum element for suspended ceilings

factory made building element produced from calcium sulphate and water It may incorporate additives, aggregates and protected mineral fibre, tissue or glass fibre

NOTE Gypsum elements for suspended ceilings include: units (see 4.2) and tiles (see 4.3), and can be manufactured with reinforced edges and profiles

metal profile sections, assembled in geometric formations to provide support for units or tiles

NOTE Specifications of grids are indicated in EN 13964

mineral fibre mat

material incorporated in the product providing cohesion, to improve spanning characteristics and durability 3.11

dimensions

 length (L): longest side of the element;

 width (W): shortest side of the element;

 total thickness (a) (see Table 2): distance between the face and the back;

 minimum thickness on the edge: distance between the back and the surface of bearing

4 Types of gypsum ceiling elements for suspended ceilings

Figure 1 — Ceiling unit (traditional) 4.2.3 Unit with rebated edges

Unit with the longitudinal edges rebated and the rim edges reinforced (see Figure 2) These units have also reinforced rim edges and protruding ribs on the rough face and may incorporate integral hangers

NOTE Edges can be square or bevelled

Figure 2 — Ceiling unit (with rebated edges)

4.3 Gypsum tiles

4.3.1 General

Gypsum elements square or rectangular, the surface of which may be plain, patterned or textured The surface may be perforated to improve sound absorption properties Perforated tiles may be backed with a protected mineral fibre mat These tiles are used on metallic grids fixed to the substructure

Following types are defined according with the edges and profiles:

4.3.2 Square edge, type A: exposed grid (see Figure 3)

Figure 3 — Square edge tiles 4.3.3 Rebated, bevelled edge, type B: semi-concealed grid (see Figure 4)

Figure 4 — Rebated, bevelled edge tiles 4.3.4 Kerfed, rebated edge, type C: concealed grid (see Figure 5)

Figure 5 — Kerfed, rebated edge tiles

If they contain more than 1 % by weight or volume of organic material, they shall be tested in accordance with

EN 13501-1

5.1.2 Resistance to fire

NOTE Resistance to fire is a characteristic dependant on an assembled system and not of the product in isolation

When required, the fire resistance of a system including gypsum ceiling elements shall be determined and classified in accordance with EN 13501-2

5.2 Water vapour permeability (expressed as water vapour resistance factor)

When the intended use of gypsum ceiling element is for moisture diffusion control, tabulated design values of water resistance factor given in EN 12524 may be used

5.3 Flexural strength (expressed as flexural breaking load)

Gypsum ceiling elements when tested according to the method given in 6.3, shall support without damage the following loads:

 gypsum ceiling tiles: 6 kg;

 gypsum units: 4 kg

5.4 Acoustic properties

5.4.1 Direct airborne sound insulation

NOTE Direct airborne sound insulation is a characteristic dependant on an assembled system and not of the product

in isolation

When required, the direct airborne sound insulation of an installed system including gypsum ceiling elements shall

be calculated according to EN ISO 717-1 starting from the results of measurements obtained by the frequency bands according to the test methods of EN ISO 140-3

5.4.2 Acoustic absorption

NOTE Acoustic absorption is a characteristic dependant on an assembled system and not of the product in isolation

When gypsum ceiling elements are intended to be used for acoustic conditioning, acoustic absorption shall be measured in accordance with EN ISO 354

5.5 Thermal properties — Thermal resistance (expressed as thermal conductivity)

When the intended use of gypsum ceilings elements is to contribute to thermal resistance in building construction works the design values of thermal conductivity are given in Table 1

Table 1 — Design values of thermal conductivity of gypsum plaster

Gross dry density

d Thermal conductivity of the product (when in equilibrium at 23 °C and 50 % RH)

Materials used in products shall not release any dangerous substances in excess of the maximum permitted

levels specified in a relevant document for the material or permitted in the national regulations of the member

state of destination

5.7 Appearance

The face of gypsum ceiling elements shall be free from visible surface imperfections such as cavities, stains

and efflorescences

5.8 Dimensions and tolerances

Gypsum ceiling elements for suspended ceilings dimensions shall be determined by their length, width and

thickness(s) and shall be declared by the producer as nominal dimensions

Tables 2 and 3 give the common dimensions and tolerances for gypsum ceilings units and gypsum tiles

according to their type and the edge profiles, when determined in accordance with 6.5

Dimensions of each specimen (as defined in 6.1) shall be within the tolerances given in Tables 2 and 3

Table 2 — Gypsum ceiling units - Dimensions and tolerances Gypsum ceiling units Preferred nominal dimensions Tolerance

Table 3 — Gypsum ceiling tiles - Dimensions and tolerances

Modular preferred dimensions and tolerances

mm Types of tile edges and profiles

The deviation from the squareness of the gypsum ceiling elements when determined in accordance with 6.6

shall be less than 1 mm on any side

5.10 Flatness (not for tiles with decorative face)

The deviation from the horizontal face when tested in accordance with 6.7 shall not be greater than 1 mm in

1 000 mm length on the diagonal

5.11 Mass per unit of surface and tolerance

The producer declares the mass per unit of surface (mass per square meter) of his gypsum ceiling element

When determined in accordance with 6.8, the mean mass per unit of surface of the gypsum ceilings elements

shall not deviate by more than 5 % from the declared value

5.12 Moisture content

The mean moisture content of the gypsum elements for suspended ceilings shall be measured at the time of

the departure from the plant

When sampled in accordance with 6.1 and tested in accordance with 6.9, the mean moisture content shall not

exceed 6 %, with no individual value exceeding 8 %

5.13 pH

When sampled in accordance with 6.1 and tested in accordance with 6.10 the surface pH of each gypsum

element shall be between 6,5 and 10,5

6 Test methods

6.1 Sampling

A minimum of three specimens of gypsum elements for suspended ceilings shall be subjected to the physical, chemical and mechanical tests (6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, and 6.10)

6.2 Preparation of the test specimens

Before testing weigh all the specimens and then dry to constant mass for the determination of the residual moisture content

The drying to constant mass1) shall be carried out according to one of the following methods:

A - Storage in a ventilated room at (23 ± 2) °C and (50 ± 5) % of relative humidity

B - Storage in a drying cabinet at (40 ± 2) °C prior to cooling to room temperature

6.3 Determination of flexural strength

6.3.1 Principle

The flexural strength of the gypsum ceiling element is determined by its ability to support a load under defined conditions without damage

6.3.2 Apparatus (see Figure 6)

a) test frame consisting of two parallel an level supports adjusted to the size of the gypsum ceiling element

to be tested and about 500 mm above the floor;

b) loading roller (600 ± 25) mm long and with a mass of 4 000 g ± 100 g;

c) loading roller (600 ± 25) mm long and a mass of 6 000 g ± 100 g

6.3.3 Procedure

Dry the gypsum ceiling element to constant mass using one of the methods given in 6.2 and place it with its face

on the supports The spacing of the supports is given in Table 4 Place the loading roller on the centre of the tile and parallel to the supports After 30 min remove the roller and examine the tile

1) Constant mass is defined as two successive weightings 24 h apart differing by less than 0,1 %

Table 4 — Spacing of supports Type of gypsum element Loading roller Spacing of supports

Tile with exposed grid

576 a

Tile with semi-concealed grid

585 a

Tile with concealed grid

(width of the profile 15 mm)

1 176

976

a For tiles the spacing of supports: length or width of the tile minus width of the profile: e.g.: 600-15=585

b For units the spacing of the supports: length (1 200 or 1 000 ) minus 24

When units have tongues and grooves, spacing support will be calculated without tongues and groves

Figure 6 — Determination of flexural strength

All effects observed during the test shall be recorded

6.4 Determination of surface appearance

Observe the face of each piece at a distance of 300 mm

Record any changes