SIST-TP CEN/TR 16239:2011

Installation rules of fibrous (gypsum) plaster works

This Technical Report provides details on the rules and recommendations for the installation of works carried out using fibrous (gypsum) plaster casts as defined in European Standard EN 13815, with instructions and details about construction.
Fibrous (gypsum) plaster casts from the three categories of production below (see 4.1 of EN 13815:2006) should be involved in this Technical Report:
a) "cpp" allowing regulatory marking CE,
b) "cppv" allowing regulatory marking CE,
c) "ipp" either when CE marking is required or without CE marking (see Annex D, note 2 of EN 13815:2006).
There are three products:
- traditional fibrous (gypsum) plaster casts, and two specific products:
- GRG casts,
- PMGRG casts.
NOTE 1   Construction of traditional gypsum plaster works using screwed system, showing similar provisions with GRG works screwed construction, is not dealt in this Technical Report.
NOTE 2   PMGRG works are not dealt in this Technical Report.
There are three ranges of casts, defined by their principal functions shapes and configurations (see 4.2 of EN 13815:2006):
- casts for interior architecture,
- casts for technical functions,
- units.
The equipment, accessories and devices are defined in this document.
This Technical Report applies to both new construction and to the refurbishment, restructuring or conversion of existing buildings.
Fibrous plastering work should be capable of having the usual finishes applied directly to them (e.g. paint, wallpaper), subject to the normal preparatory work applicable for the finish.
This Technical Report should not apply to:
- works consisting of various boards, elements or casts when they are not fibrous (gypsum) plaster casts or fibrous plaster works which, by their nature, do not form an integral part of the structure by the use of permanent fixing (see the scope of EN 15319:2007).
- fibrous plaster works consisting of casts and embellishments, when they are to be applied directly to either new or existing wall...

Regeln für den Einbau von Formteilen aus faserverstärktem Gips

Règles d'exécution des ouvrages en staff

Ce Rapport Technique fournit des détails sur les règles et les recommandations pour la mise en œuvre d'ouvrages en staff tels que définis dans la Norme européenne EN 13815, ainsi que des instructions et des détails relatifs à la construction.
Les moulages en staff des trois catégories de production indiquées ci-dessous (voir EN 13815:2006, paragraphe 4.1) sont concernés dans ce Rapport Technique :
a)   « cpp » justifiant le marquage réglementaire CE ;
b)   « cppv » justifiant le marquage réglementaire CE ;
c)   « ipp » lorsque le marquage CE est nécessaire ou sans marquage CE (voir EN 13815:2006, Annexe D, Note 2).
La gamme comporte trois produits :
-   les moulages en staff traditionnel et deux produits spécifiques :
-   les moulages en GRG ;
-   les moulages en PMGRG.
NOTE 1   La réalisation d'ouvrages en staff traditionnel à l'aide d'un système vissé, qui comporte des dispositions similaires à la réalisation d'ouvrages GRG vissés, n'est pas traitée dans ce Rapport Technique.
NOTE 2   Les ouvrages en PMGRG ne sont pas traités dans ce Rapport Technique.
Il existe trois types de moulages, définis par leurs principales fonctions, leurs formes et leur configuration (voir EN 13815:2006, paragraphe 4.2) :
-   les moulages pour architecture intérieure ;
-   les moulages pour fonctions techniques et ;
-   les plaques.
Le matériel, les accessoires et les dispositifs sont définis dans le présent document.
Le présent Rapport Technique s'applique à des ouvrages à réaliser dans des bâtiments neufs ou existants, en construction, réhabilitation, restructuration ou réaménagement.
Il convient que les ouvrages en staff puissent recevoir directement les finitions usuelles (par exemple, peinture, papier peint) sous réserve d'effectuer les travaux préparatoires propres au type de finition considéré.
Le présent Rapport Technique ne s'applique pas aux :
-   ouvrages consistant en diverses plaques, éléments ou moulages qui ne sont pas en staff, ni aux ouvrages en staff qui, par leur nature, ne forment pas une partie intégrante de la structure par utilisation d'une fixation permanente (voir le champ d'application de la norme EN 15319:2007) ;
-   ouvrages constitués de moulages et décors en staff, lorsqu'ils sont appliqués et fixés directement sur des surfaces — murs ou plafonds — existantes ou créées, pour des applications purement décoratives (voir EN 15319:2007, Figures 3 et 4) ; il convient d'exécuter ces ouvrages conformément aux règles de l'art.
Le présent Rapport Technique ne traite pas des exigences réglementaires auxquelles doivent satisfaire les ouvrages en staff (par exemple les plafonds) dans certaines situations.
NOTE 3   Dans le domaine de la sécurité, les principaux règlements concernent certains types de bâtiments, par exemple :
-   établissements recevant du public (ERP) ;
-   immeubles de grande hauteur (IGH) ;
-   immeubles à vocation éducative ;
-   immeubles à usage sanitaire.
Le présent Rapport Technique ne traite pas de l'aptitude des ouvrages en staff à répondre à des exigences techniques spécifiques (par exemple, comportement au feu, isolation acoustique, économies d'énergie, etc.) qui pourraient être requises dans certains marchés de travaux.

Pravila za vgradnjo mavčnih odlitkov, ojačenih z vlakni

To tehnično poročilo podaja podrobnosti pravil in priporočil za vgradnjo mavčnih odlitkov, ojačenih z vlakni, kot so opredeljeni v evropskem standardu EN 13815, z navodili in podrobnostmi o konstrukciji.
V to tehnično poročilo morajo biti vključeni tudi mavčni odlitki, ojačeni z vlakni, iz treh spodaj navedenih proizvodnih kategorij (glej 4.1 EN 13815:2006):
a) »cpp«, ki omogoča regulatorno oznako CE,
b) »cppv«, ki omogoča regulatorno oznako CE,
c) »ipp«, kadar je zahtevana oznaka CE ali brez oznake CE (glej dodatek D, opombo 2 EN 13815:2006).
Trije proizvodi so:
- tradicionalni mavčni odlitki, ojačeni z vlakni, in dvoje posebnih proizvodov:
- odlitki GRG,
- odlitki PMGRG.
OPOMBA 1: To tehnično poročilo ne obravnava konstrukcije tradicionalnih mavčnih odlitkov z uporabo vijačnega sistema, ki kaže podobne določbe kot vijačna konstrukcija odlitkov GRG.
OPOMBA 2: To tehnično poročilo ne obravnava odlitkov PMGRG.
Obstajajo trije razponi odlitkov, opredeljeni glede na njihove glavne funkcije, oblike in konfiguracije (glej 4.2 EN 13815:2006):
- odlitki za notranjo arhitekturo,
- odlitki za tehnične funkcije,
- enote.
Ta dokument opredeljuje opremo, dodatke in pripomočke.
To tehnično poročilo velja za nove konstrukcije in prenove, rekonstrukcije in preureditve obstoječih zgradb.
Mavčni odlitki, ojačeni z vlakni, morajo prenesti neposreden nanos običajnih apretur (npr. barve, tapet) v skladu z normalnim pripravljalnim delom, ki velja za apreture.
To tehnično poročilo se ne sme uporabljati za:
- izdelke, sestavljene iz različnih plošč, elementov ali ulitkov, če ti niso mavčni odlitki, ojačeni z vlakni, ali mavčni izdelki, ojačeni z vlakni, ki po svoji naravi niso sestavni del strukture z uporabo trajne opreme (glej področje uporabe EN 15319:2007),
- mavčne izdelke, ojačene z vlakni, sestavljene iz odlitkov in okrasja, kadar se nanesejo neposredno na novo ali obstoječo steno.

General Information

• Status: Published
• Public Enquiry End Date: 14-Apr-2011
• Publication Date: 07-Nov-2011
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: CAA - Mineral binders and masonry
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Oct-2011
• Due Date: 02-Jan-2012
• Completion Date: 08-Nov-2011
• Ref Project: CEN/TR 16239:2011 - Installation rules of fibrous (gypsum) plaster works

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN/TR 16239:2011
01-december-2011
3UDYLOD]DYJUDGQMRPDYþQLKRGOLWNRYRMDþHQLK]YODNQL
Installation rules of fibrous (gypsum) plaster works
Regeln für den Einbau von Formteilen aus faserverstärktem Gips
Règles d'exécution des ouvrages en staff
Ta slovenski standard je istoveten z: CEN/TR 16239:2011
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
SIST-TP CEN/TR 16239:2011 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 16239:2011

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SIST-TP CEN/TR 16239:2011


TECHNICAL REPORT
CEN/TR 16239

RAPPORT TECHNIQUE

TECHNISCHER BERICHT
July 2011
ICS 91.180; 91.100.10
English Version
Installation rules of fibrous (gypsum) plaster works
Règles d'exécution des ouvrages en staff Regeln für den Einbau von Formteilen aus
faserverstärktem Gips


This Technical Report was approved by CEN on 28 May 2011. It has been drawn up by the Technical Committee CEN/TC 241.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 16239:2011: E
worldwide for CEN national Members.

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Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .6
3 Terms, definitions, symbols and abbreviations .7
4 Technical requirements .7
5 Site installation .7
5.1 Conditions required prior to commencing the installation of fibrous plaster works .7
5.2 Equipments to be used for fixing to the backgrounds .7
5.2.1 Safe loads .7
5.2.2 Humidity and moisture conditions .8
5.3 Installation of traditional fibrous gypsum plaster works using sealed system . 12
5.3.1 Products and materials constituting this traditional fibrous plaster work itself . 12
5.3.2 Equipment to be used for fibrous plaster works with spaced fixing suitable for installation
by sealed system . 13
5.3.3 Construction of traditional gypsum fibrous plaster works using sealed system . 20
5.4 Installation of GRG works using screwed system . 26
5.4.1 Products and materials constituting this GRG work itself . 26
5.4.2 Equipment to be used for GRG works with spaced fixing suitable for installation by
screwed system . 27
5.4.3 Construction of GRG works using screwed system . 30
5.5 Installation of GRG works using sealed system . 38
5.5.1 Products and materials constituting GRG works itself . 38
5.5.2 Equipment to be used for GRG works with spaced fixing suitable for installation by
sealed system . 40
5.5.3 Construction of GRG works using sealed system . 40
6 Characteristics of the completed works . 46
6.1 Surface appearance of the works . 46
6.2 Flatness of work surfaces . 46
6.2.1 Local flatness . 46
6.2.2 General flatness . 47
6.3 Verticality of flat work surfaces . 47
Annex A (informative) Classes of corrosion protection of metal framework components . 48
Bibliography . 49

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Foreword
This document (CEN/TR 16239:2011) has been prepared by Technical Committee CEN/TC 241 “Gypsum and
gypsum based products”, the secretariat of which is held by AFNOR.
This Technical Report is one of a series of European Standards including:
 construction products standards, concerning gypsum and gypsum based products;
 works design standards, providing general principles for the design of works to realize with these
products;
 technical reports, providing rules and recommendations for installation of works on site realized with
these same products.
NOTE 1 The fibrous plaster products are the subject of the European Standard EN 13815 "Fibrous (gypsum) plaster
casts - Definitions, requirements and test methods".
NOTE 2 The principles of design of fibrous plaster works are the subject of the European Standard EN 15319 "General
principles of design of fibrous (gypsum) plaster works".
It has been assumed in the draft of this Technical Report that the application of its provisions is entrusted to
appropriately qualified and experienced professionals, for whose guidance it has been prepared.
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Introduction
This Technical Report applies to works carried out using fibrous (gypsum) plaster products-traditional and
GRG - made by the moulding of thin reinforced gypsum.
The fibrous plaster work is installed by positioning and fastening of these products to the appropriate part of
the building construction. Then they are sealed or screwed and jointed to form continuous surfaces without
apparent joints.
NOTE The figures used to illustrate this document are intended to make the text easier to understand. Therefore,
they shall be taken as indicative and non-restrictive examples of the works described in the text.
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1 Scope
This Technical Report provides details on the rules and recommendations for the installation of works carried
out using fibrous (gypsum) plaster casts as defined in European Standard EN 13815, with instructions and
details about construction.
Fibrous (gypsum) plaster casts from the three categories of production below (see 4.1 of EN 13815:2006)
should be involved in this Technical Report:
a) “cpp” allowing regulatory marking CE,
b) “cppv” allowing regulatory marking CE,
c) “ipp” either when CE marking is required or without CE marking (see Annex D, note 2 of EN 13815:2006).
There are three products:
 traditional fibrous (gypsum) plaster casts, and two specific products:
 GRG casts,
 PMGRG casts.
NOTE 1 Construction of traditional gypsum plaster works using screwed system, showing similar provisions with GRG
works screwed construction, is not dealt in this Technical Report.
NOTE 2 PMGRG works are not dealt in this Technical Report.
There are three ranges of casts, defined by their principal functions shapes and configurations (see 4.2 of
EN 13815:2006):
 casts for interior architecture,
 casts for technical functions and
 units.
The equipment, accessories and devices are defined in this document.
This Technical Report applies to both new construction and to the refurbishment, restructuring or conversion
of existing buildings.
Fibrous plastering work should be capable of having the usual finishes applied directly to them (e.g. paint,
wallpaper), subject to the normal preparatory work applicable for the finish.
This Technical Report should not apply to:
 works consisting of various boards, elements or casts when they are not fibrous (gypsum) plaster casts or
fibrous plaster works which, by their nature, do not form an integral part of the structure by the use of
permanent fixing (see the scope of EN 15319:2007).
 fibrous plaster works consisting of casts and embellishments, when they are to be applied directly to
either new or existing wall or ceiling surfaces, for purely decorative applications (see Figures 3 and 4 of
EN 15319:2007); works of these types should be carried out in accordance with standard practice.
This Technical Report does not contain the regulatory requirements with which fibrous plaster works (e.g.
ceiling) must comply in certain buildings.
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NOTE 3 In the field of safety, most regulations relate to certain types of building for example:
 public buildings (PB),
 high rise buildings (HRB),
 buildings for educational purposes,
 buildings for sanitary purposes.
This Technical Report does not deal with the ability of fibrous plastering works to comply with particular
technical requirements (e.g. fire behaviour, protection against noise, energy economy, etc) needed for the
works to comply with the requirements of the particular building contract.
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 335 (all parts), Durability of wood and wood-based products — Definition of use classes.
EN 350 (all parts), Durability of wood and wood-based products — Natural durability of solid wood.
EN 351 (all parts), Durability of wood and wood-based products — Preservative-treated solid wood.
EN 460, Durability of wood and wood-based products — Natural durability of solid wood — Guide to the
durability requirements for wood to the used in hazard classes.
EN 573-3, Aluminium and aluminium alloys — Chemical composition and form of wrought products —
Part 3 : Chemical composition and form of products.
EN 599-2, Durability of wood and wood-based products — Performance of preventive wood preservatives as
determined by biological tests — Part 2 : Classification and labelling.
EN 1396, Aluminium and aluminium alloys — Coil coated sheet and strip for general applications —
Specifications.
EN 1611-1, Sawn timber — Appearance grading of softwoods — Part 1: European spruces, firs, pines and
Douglas firs.
EN 1912, Structural timber — Strength classes — Assignment of visual grades and species.
EN 1993-1-1, Eurocode 3: Design of steel structures — Part 1-1: General rules and rules for buildings.
EN 1995-1-1, Eurocode 5: Design of timber structures — Part 1-1: General — Common rules and rules for
buildings.
EN 10143, Continuously hot-dip coated steel sheet and strip — Tolerances on dimensions and shape.
EN 10152, Electrolytically zinc coated cold rolled steel flat products for cold forming — Technical delivery
conditions.
EN 10169, Continuously organic coated (coil coated) steel flat products - Technical delivery conditions.
EN 10244-2, Steel wire and wire products — Non-ferrous metallic coatings on steel wire — Part 2: Zinc or zinc
alloy coatings.
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EN 10346, Continuously hot-dip coated steel flat products - Technical delivery conditions.
EN 13279-1, Gypsum binders and gypsum plasters — Part 1: Definitions and requirements.
EN 13815:2006, Fibrous gypsum plaster casts — Definitions, requirements and test methods.
EN 13963, Jointing materials for gypsum plasterboard — Definitions, requirements and test methods.
EN 14195:2005, Metal framing components for gypsum plasterboard systems — Definitions, requirements
and test methods.
EN 14566, Mechanical fasteners for gypsum plasterboard systems — Definitions, requirements and test
methods.
prEN 15303-1, Design and application of plasterboard systems on frames — Part 1: General principles of
design
EN 15319:2007, General principles of design of fibrous (gypsum) plaster works.
EN ISO 12944-3, Paints and varnishes — Corrosion protection of steel structures by protective paint systems
— Part 3: Design considerations (ISO 12944-3: 1998).
3 Terms, definitions, symbols and abbreviations
See Clause 3 and Figures 1 and 2 of EN 15319:2007.
4 Technical requirements
See Subclause 4.3 of EN 15319:2007.
5 Site installation
5.1 Conditions required prior to commencing the installation of fibrous plaster works
See Subclause 5.1 of EN 1531:2007.
5.2 Equipments to be used for fixing to the backgrounds
5.2.1 Safe loads
The equipment, accessories and devices described in this subclause are those commonly used. Other
materials or procedures may be used, provided that they are suitable to maintain an equivalent level of
reliability. The safe loads adopted for the hangers are determined by the test results of breaking loads of
these, and application of a safety factor equal to 3.
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5.2.2 Humidity and moisture conditions
Table 1 — Classes of exposure
Classes Conditions
Building components generally exposed to varying relative humidity up to
A
70 % and varying temperature up to 25 °C but without corrosive pollutants.
Building components frequently exposed to varying relative humidity up to
B
90 % and varying temperature up to 30 °C but without corrosive pollutants
Building components exposed to an atmosphere with level of humidity
C
higher than 90 % and accompanied by a risk of condensation
D More severe than the above
The level of protection against corrosion of metal equipment and accessories as set out in Tables 2, 3 and 7,
when exposed in the range of exposure conditions given in Table 1 below (see 4.3.1.1.1, 4.3.1.1.2, 4.3.1.1.4
and 4.3.1.2 of EN 15319:2007), are contained in Annex A.
The choice of gypsum casting plaster use for manufacture of traditional casts is given in 5.3.1.1.
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Table 2 — Examples of accessories for fixing and anchoring to the background and for attachment
(see 3.2.6, 3.2.7 and 3.2.8 of EN 15319:2007)
Characteristics and
Constituents and treatments
sizes
Designations Examples of uses
against the corrosion
mm
Anchorings on wood, plaster, etc,
made of two nails driven in
Mason's nails Galvanised steel 70 x 1.7
diagonally, with securing wad (see
Figure 1).
Slater's nails Zinc electroplated steel Lightweight fixings on wood, plaster.
Plasterboard
See EN 14566 35 x 2.3 Lightweight fixings on wood.
nails
Flat trumpet
See EN 14566 35 x 3.5 Varied lightweight fixings.
screws
 Fixings on metal and wood,
Self-tapping flat
trumpet screws
See EN 14566 Length : 25 to 140
(TMN, TSN,
 Attachments.
THN)
Rehabilitation Fixings on timber through existing
Zinc electroplated steel With screwed tip
screws eyes plaster ceiling.
 Zinc electroplated steel
Expanding,
self-drilling or  Stainless steel Anchorings on concrete and
Thread φ : 6 to 12
chemical masonry.
threaded bolts
 Brass
Nails and studs
driven by
Zinc electroplated steel Anchorings on metal.
cartridge
hammer
Fixings called Zinc electroplated (25 µm) Fixings to flanges of beams;

"alligator clips" tempered steel Connectings
 Fixings on masonry, plaster
(see Figure 3) and to wood
laths, metal sections, etc;
See 3.2.10 of EN 15319:2007
 Fastenings of hangers or
Wads
Use of sisal fibres should be
supporting lugs on the
recommended
background (see Figure 2) ;
 Attachments (see Figure 4)
Ties wire Round steel wire Connectings (see Figure 9)
The thickness of the zinc coating should be at least 5 µm.
Equivalent processes of treatment against the corrosion should be allowed.
Installation of fixings and anchorings should be carried out in accordance with:
 either the planning documents (design documents), if required with reference to the relevant ETAG,
 or the manufacturer’s technical instructions, with reference to the national building regulations.
Where the fixing is into steel or timber the requirements of ENV 1993-1-1 and ENV 1995-1-1 respectively should apply.
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Key Key
1 nails driven in diagonally
1 nails driven in diagonally
2 round rod hanger
2 wad
3 wad
Figure 1 — Example of fixing using nails and Figure 2 — Example of fixing using nails and wad
wad securing of hanger

Key
1 stability to be checked
2 hole formed with a drill between 25 and 30 mm ∅
3 wad forming a binder
Figure 3 — Example of anchoring to an old reinforced plaster ceiling
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Key
Dp depth of suspension
S contact surface of wad (see Table 3)
Figure 4 — Examples of attaching wads (single and double)


Key
Dp depth of suspension
S contact surface of wad (see Table 3)
Figure 5 — Examples of fibrous plastered hangers (single and double)
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Key
Dp depth of suspension
S contact surface of wad (see Table 3)
Figure 6 — Examples of fibrous plastered wire hangers (single and double)
5.3 Installation of traditional fibrous gypsum plaster works using sealed system
5.3.1 Products and materials constituting this traditional fibrous plaster work itself
5.3.1.1 Traditional fibrous plaster casts (flat units or related and architectural casts)
The fibrous (gypsum) plaster casts used should comply with requirements of Clause 5 of EN 13815:2006,
particularly:
 made from special gypsum casting plaster.
 unit surface mass:
2
 common units ≥ 1kg/m per mm thickness,
2
 unit for fire resistance function ≥ 0.9 kg/m per mm thickness.
This surface mass may apply to developed area of shaped or elaborated casts.
 cast surface hardness:
 common casts ≥ 70 Shore C units,
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 casts for fire resistance function ≥ 60 units Shore C units.
These traditional fibrous plaster casts should comprise possible complementary reinforcement by softwood
lath or lightweight section.
When the intended use of traditional casts is for areas with exposure conditions such as classes B, C or D
(see Table 1):
 use of gypsum casting plasters with alpha hemihydrate average content ≥ 25 % should be recommended
for manufacture of casts.
 use of mineral reinforcement according to 5.6.3.2 of EN 13815:2006 should be recommended.
5.3.1.2 Plasters used for installation
Gypsum casting plasters – calcium sulphate hemihydrate – used for installation should be manufactured
according to EN 13279-1 (class C1)
5.3.1.3 Water
The mixing water should be clean and free from contamination and impurities.
Normal tap water may be used.
5.3.1.4 Fibres and hessian used for installation
The fibres and hessian used for installation should comply with the specifications shown in 5.6.3.1 and 5.6.3.2
of EN 13815:2006.
5.3.1.5 Fibrous plaster ropes (see 3.2.11 of EN 15319:2007)
These should be used, among other purposes, to join two fibrous plaster casts together in the work (sealed
system) and to fix the work at the edges.
The fully impregnation of fibres with plaster should be necessary.
5.3.2 Equipment to be used for fibrous plaster works with spaced fixing suitable for installation by
sealed system
st
Recommendations as specified in 5.2 (1 paragraph) applies
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Table 3 — Examples of accessories, devices and frames for spaced fixing installation (sealed system)
Designation Sizes (mm) - Treatments against the corrosion - Recommendations and requirements
Timber quality
Wads See 3.2.10 of EN 15319:2007 As far as possible :
(see figure 4) - The contact surface S of wads, fibrous
- diameter of ropes of double wads≥ 15 mm
plastered hangers and other fibrous
- safe load : 30 daN
plastered devices on the rough back of
Fibrous plastered hangers See 3.2.11 of EN 15319:2007
fibrous plaster cast should be between
50 cm² and 100 cm² inclusive ;
(see figure 5) - diameter of ropes:
single hangers ≥ 20 mm,

double hangers ≥ 15 mm.

- safe load: 60 daN

Fibrous plastered wire hangers Round steel wire:

(see figure 6 and 9) - minimum diameter = 1 mm,
- For the double wads, fibrous plastered
- galvanised,
hangers and other fibrous plastered
- diameter of rope ≥ 20 mm.
devices, the contact surface is the addition
Fibrous plastered wire supporting Round steel wire:
of S1 and S2, and should be between
lugs
50 cm² and 100 cm², and the overall
- minimum diameter = 1 mm,
dimension of S1 and S2 overall width
(see 3.2.8.b) of EN 15319:2007)
- galvanised,
should be between 100 mm and 150 mm.
- diameter of rope ≥ 20 mm.

Round wire hangers Round steel wire:

(see figure 7) - minimum diameter = 5 mm,

- galvanised.

Threaded rod hangers Threaded rod:
For wads, fibrous plastered hangers,
(see figure 8) - minimum diameter = 6 mm, fibrous plastered wire hangers and
supporting lugs, the fully impregnated of
- zinc or cadmium electroplated.
fibres with plaster should be necessary.
Threaded rod supporting lugs Threaded rod:
(see 3.2.8.b) of EN 15319:2007) - minimum diameter = 10 mm,
- zinc or cadmium electroplated.
Intermediate timber lath frames Spaced timber laths: Those timber frames shall be used only for
areas with exposure conditions such as
- minimum sizes = 50 mm x 15 mm;
class A (see Table 1)
- the timber used should conform at least to quality
For ceiling (see Figure 10) the maximum
grade S10 (MS10) of EN 1912;
interval Pi between the primary laths and
- the appearance grading of softwoods should
the maximum interval Hi between the stay
conform at least to G2-4 (Table 1) or G4-4 ( Table
hangers to primary laths should be in
2): unlimited knots as long as the integrity of the
accordance with the sizes of laths.
piece is maintained as specified in EN 1611-1;

- the use of oak is not allowed;
Examples:
- the moisture content of the timber should not

exceed 20% by mass;
Sizes of laths Pi and Hi values
- where protection against biological or other attack
is necessary, the relevant provisions of EN 335,     mm     mm
EN 350, EN 351, EN 460 and or EN 599-2 should

apply;

- where wood preservatives are used, the corrosion
50 x 15  600
protection method for the metal components that are
70 x 18 1 000
connected to the timber components should be
compatible with the wood preservative.

For vertical positioned work, the same
maximum interval for the same sizes as
ceiling should be met (Hi indicates the
interval of supporting lugs and Pi indicates
the interval of primary laths. See
Figure 1.d of EN 15319:2007)
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SIST-TP CEN/TR 16239:2011
CEN/TR 16239:2011 (E)
Table 3 (continued)
Intermediate metal section frames Spaced steel sections For ceilings (see Figure 11) the
maximum interval Pi between the
- minimum sizes (recommended):
primary sections and the maximum
interval Hi between the stay
- U cold forming: 40 mm x 20 mm x 1.25 mm
hangers to primary sections, should
- 0,8 mm folded sheet: 40 mm x 20 mm ;
be in accordance with the sizes of
sections.
- rigid tubular: 22,5 mm ∅

- where the metal section frame is formed in hot-
galvanised strip or sheet of unalloyed steel, the minimum Examples:
steel grade used should be DX 51D + Z according to

EN 10346;
Sizes of sections Pi and Hi
- if other steel types are used, they should conform to
either EN 10152(ZE), EN 10169 or EN 10346 as

appropriate.
     mm              mm
- the thickness tolerance should be in accordance with
EN 10143;
U cold forming:
- where frame is made of aluminium alloy, the alloy should
be in accordance with EN 573-3 and have 0,2 % yield
     40 x 20 x 1.25 1 000
strength of a least 160N/mm²;
      40 x 20 x 1.5 1 200
- for corrosion protection of frameworks made of steel or
aluminium, the minimum protection should be that given in
       40 x 20 x 2 1 350
Annex A.

I 0,8 mm folded
sheet:
          40 x 20 1 200
          50 x 40 1 500
φ 22.5 mm
tubular 1 200
For vertical positioned work, the
same sizes should be met (Hi
indicates the interval of supporting
lugs and Pi indicates the interval of
primary sections. See Figure1.d of
EN 15319:2007).
The recommendations relating to the areas of contact of wads, fibrous plastered hangers and fibrous plastered supporting lugs should
particularly apply to flat areas of works (risk of small bucklings on finished surface due to over-sized accessories).
For these wads and fibrous plastered devices, use of sisal fibres should be recommended.
The suggested intermediate frames and the maximum centres recommended relate to the flat works of a common nominal thickness equal
to or less than 15 mm.
For some works consisting of other characteristics (superior thickness, very shaped configuration, very ornate style, use of other frame
components, etc) the maximum centres required should then be adjusted to suit the bending strength of the laths or sections used.
In order to avoid corrosion due to contact between dissimilar materials (e.g. steel and aluminium), intermediate layers of suitable protecting
materials should be applied according to EN ISO 12944-3.
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SIST-TP CEN/TR 16239:2011
CEN/TR 16239:2011 (E)


Key
Dp depth of suspension
S contact surface of wad (see Table 3)
Figure 7 — Examples of round wire hangers
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SIST-TP CEN/TR 16239:2011
CEN/TR 16239:2011 (E)


Key
Dp depth of suspension
S contact surface of wad (see Table 3)
Figure 8 — Examples of threaded rod hangers
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SIST-TP CEN/TR 16239:2011
CEN/TR 16239:2011 (E)

Key
1 hanging angle 5 fibrous plastered wire hanger
2 primary metal section (channel) 6 complementary reinforcement by softwood lath
3 tie wire 7 filled joint and smoothing
4 secondary metal section (channel) 8 traditional fibrous plaster ceiling

Figure 9 — Example of installation of traditional fibrous plaster suspended ceiling (sealed system)
with intermediate metal section framework
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SIST-TP CEN/TR 16239:2011
CEN/TR 16239:2011 (E)

Key
1 stay hanger Pi interval between primary laths
2 secondary timber laths Hi interval between stay hangers to primary laths
3 collar with fibrous plaster rope Wi spacings between wads or hangers over ceiling (see
Table 6)
4 wad
Dp depth of suspension
5 wads or hangers

6 primary timber lath
Figure 10 — Example of intermediate timber lath framework for traditional fibrous plaster ceilings
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