kSIST prEN 13813:2018

Screed material and floor screeds - Screed material - Properties and requirements

This European Standard specifies requirements for the following types of screed material as defined in EN 13318:
-   Cementitious;
-   Calcium sulphate;
-   Magnesite;
-   Mastic asphalt;
-   Synthehic resin.
All types of screed material may be used for internal applications.
Cementitious screed material may be used for both internal and external applications.
This European Standard specifies the performance for fresh and hardened screed materials.
The floor screed materials could be monolayer or multilayer.
This European Standard specifies the assessment and verification of the constancy of performance and the classification and designation of screed materials.
This European Standard does not provide criteria or recommendations for the design and installation of screed materials.

Estrichmörtel, Estrichmassen und Estriche - Estrichmörtel und Estrichmassen - Eigenschaften und Anforderungen

Diese Europäische Norm legt Anforderungen an folgende Arten von Estrichmörtel fest, wie in EN 13318 definiert:
-   Zement;
-   Calciumsulfat;
-   Magnesit;
-   Gussasphalt;
-   Synthetisches Reaktionsharz.
Alle Arten Estrichmörtel dürfen innen angewendet werden.
Zementestrichmörtel darf sowohl innen als auch außen angewendet werden.
Diese Europäische Norm legt die Leistung für frischen und nicht erhärteten Estrichmörtel fest.
Estrichmörtel kann einzelschichtig oder mehrschichtig sein.
Diese Europäische Norm legt die Bewertung und Überprüfung der Konstanz der Leistung und die Klassifizierung und Bezeichnung von Estrichmörtel fest.
Diese Europäische Norm gibt keine Kriterien oder Empfehlungen für die Gestaltung und den Einbau von Estrichmörtel an.

Matériau de chape et chapes - Matériau de chapes - Propriétés et exigences

La présente Norme européenne spécifie les exigences relatives aux types de matériaux pour chape suivants, définis dans l'EN 13318 :
-   à base de ciment ;
-   à base de sulfate de calcium ;
-   à base de magnésie ;
-   en asphalte coulé ;
-   à base de résine synthétique.
Tous les types de matériau pour chape peuvent être utilisés pour des applications en intérieur.
Les matériaux pour chape à base de ciment peuvent être utilisés tant pour les applications en intérieur que pour les applications en extérieur.
La présente Norme européenne spécifie les performances des matériaux pour chape frais et durcis.
Les matériaux pour chape peuvent être monocouches ou multicouches.
La présente Norme européenne spécifie l'évaluation et la vérification de la constance des performances, ainsi que la classification et la désignation des matériaux pour chape.
La présente Norme européenne ne fournit pas de critères ni de recommandations en matière de conception et d'installation des matériaux pour chape.

Estrihi - Materiali za estrihe - Lastnosti in zahteve

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Mar-2017
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: BBB - Concrete, reinforced concrete and prestressed concrete
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 06-Mar-2018
• Due Date: 24-Apr-2018
• Completion Date: 07-Mar-2018
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/119 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on floorings
• Mandate: M/132 - Addenda to the mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on circulation fixtures, structural bearings and floorings
• Ref Project: FprEN 13813 - Screed material and floor screeds - Screed material - Properties and requirements

Relations

• Revised: SIST EN 13813:2003 - Screed material and floor screeds - Screed material - Properties and requirements
• Effective Date: 01-Mar-2017
• Revised: SIST EN 13813:2003 - Screed material and floor screeds - Screed material - Properties and requirements
• Effective Date: 18-Jan-2023
• Revised: SIST EN 13813:2003 - Screed material and floor screeds - Screed material - Properties and requirements
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 13813:2017
01-marec-2017
Estrihi - Materiali za estrihe - Lastnosti in zahteve
Screed material and floor screeds - Screed material - Properties and requirements
Estrichmörtel, Estrichmassen und Estriche - Estrichmörtel und Estrichmassen -
Eigenschaften und Anforderungen
Matériau de chape et chapes - Matériau de chapes - Propriétés et exigences
Ta slovenski standard je istoveten z: prEN 13813
ICS:
91.100.10 Cement. Mavec. Apno. Malta Cement. Gypsum. Lime.
Mortar
oSIST prEN 13813:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 13813:2017

---------------------- Page: 2 ----------------------
oSIST prEN 13813:2017


DRAFT
EUROPEAN STANDARD
prEN 13813
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2017
ICS 91.100.10 Will supersede EN 13813:2002
English Version

Screed material and floor screeds - Screed material -
Properties and requirements
Matériau de chape et chapes - Matériau de chapes - Estrichmörtel, Estrichmassen und Estriche -
Propriétés et exigences Estrichmörtel und Estrichmassen - Eigenschaften und
Anforderungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 303.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 CEN-CENELEC
Management Centre has the same status as the official versions.

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

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13813:2017 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Designation of screed materials and characteristics . 8
5 Product characteristics . 8
5.1 General . 8
5.2 Characteristics related to mechanical resistance . 11
5.3 Reaction to fire . 14
5.3.1 General . 14
5.3.2 Screed materials classified as Class A1 without the need for testing (CWT) . 15
5.3.3 Screed materials classified as class E without the need for further testing (CWFT) . 15
5.3.4 Screed materials classified according to the test results . 16
5.4 Release of corrosive substances . 16
5.5 Compressive strength . 16
5.6 Flexural strength . 16
5.7 Wear resistance . 17
5.8 Surface hardness . 17
5.9 Resistance to indentation. 18
5.10 pH value . 18
5.11 Impact resistance . 18
5.12 Bond strength . 18
5.13 Shrinkage . 19
5.14 Modulus of elasticity in compression . 19
5.15 Vertical water permeability . 19
5.16 Freeze–thaw resistance . 19
5.17 Density . 19
5.18 Compressive stress at 10 % strain . 20
5.19 Special characteristics . 20
5.19.1 Consistency . 20
5.19.2 Setting time . 20
5.19.3 Resistance to rolling wheel with floor covering . 20
5.19.4 Chemical resistance . 20
5.19.5 Water vapour permeability . 20
5.19.6 Electrical resistance . 20
5.19.7 Thermal resistance . 20
6 Assessment and verification of constancy of performance - AVCP . 21
6.1 General . 21
6.2 Type testing . 21
6.2.1 General . 21
6.2.2 Test samples, testing and compliance criteria . 21
6.2.3 Test reports . 22
6.2.4 Shared other party results . 22
2

---------------------- Page: 4 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
6.3 Factory production control (FPC) . 23
6.3.1 General . 23
6.3.2 Requirements . 24
6.3.3 Product specific requirements . 27
6.3.4 Initial inspection of factory and of FPC . 28
6.3.5 Continuous surveillance of FPC . 28
6.3.6 Procedure for modifications . 28
6.3.7 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 29
7 Marking and labelling . 29
Annex ZA (informative) Relationship between this European Standard with Regulation (EU)
No 305/2011 . 31
Bibliography . 42

3

---------------------- Page: 5 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
European foreword
This document (prEN 13813:2017) has been prepared by Technical Committee CEN/TC 303 “Floor
screeds and screed materials”, the secretariat of which is held by UNI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13813:2002.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports basic work requirements for construction works of
Regulation (EU) No 305/2011 on construction products.
For relationship with the Regulation, see informative Annex ZA, which is an integral part of this
document.
The significant technical changes between this European Standard and the previous edition are listed
herewith:
— Clause 1;
— Clause 4;
— Clause 5;
— Clause 6;
— Annex ZA (informative).
4

---------------------- Page: 6 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
Introduction
The properties required of a screed are related to its use.
They are considered in two groups: those relating to the fresh, unhardened screed material and those
relating to the hardened screed material.
The properties achieved depend essentially on the type or types of binder used and their respective
proportions. The type of aggregates, admixtures and/or additions used can achieve special properties.
5

---------------------- Page: 7 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
1 Scope
This European Standard specifies requirements for the following types of screed material as defined in
EN 13318:
— Cementitious;
— Calcium sulphate;
— Magnesite;
— Mastic asphalt;
— Synthetic resin.
All types of screed material may be used for internal applications.
Cementitious screed material may be used for both internal and external applications.
This European Standard specifies the performance for fresh and hardened screed materials.
The floor screed materials could be monolayer or multilayer.
This European Standard specifies the assessment and verification of the constancy of performance and
the classification and designation of screed materials.
This European Standard does not provide criteria or recommendations for the design and installation of
screed materials.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 826, Thermal insulating products for building applications — Determination of compression behaviour
EN 1015-10, Methods of test for mortar for masonry — Part 10: Determination of dry bulk density of
hardened mortar
EN 1081, Resilient floor coverings — Determination of the electrical resistance
EN 12086, Thermal insulating products for building applications — Determination of water vapour
transmission properties
CEN/TS 12390-9, Testing hardened concrete — Part 9: Freeze-thaw resistance - Scaling
EN 12664, Thermal performance of building materials and products — Determination of thermal
resistance by means of guarded hot plate and heat flow meter methods — Dry and moist products of
medium and low thermal resistance
EN 12697-19 Bituminous mixtures — Test methods for hot mix asphalt — Part 19: Permeability of
specimen
EN 12697-20, Bituminous mixtures — Test methods for hot mix asphalt — Part 20: Indentation using
cube or cylindrical specimens (CY)
6

---------------------- Page: 8 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
EN 13318, Screed material and floor screeds — Definitions
EN 13412, Products and systems for the protection and repair of concrete structures — Test methods —
Determination of modulus of elasticity in compression
EN 13454-2, Binders, composite binders and factory made mixtures for floor screeds based on calcium
sulfate — Part 2: Test methods
EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification
using data from reaction to fire tests
EN 13529, Products and systems for the protection and repair of concrete structures — Test methods —
Resistance to severe chemical attack
EN 13892-1, Methods of test for screed materials — Part 1: Sampling, making and curing specimens for
test
EN 13892-2, Methods of test for screed materials — Part 2: Determination of flexural and compressive
strength
EN 13892-3, Methods of test for screed materials — Part 3: Determination of wear resistance - Böhme
EN 13892-4, Methods of test for screed materials — Part 4: Determination of wear resistance-BCA
EN 13892-5, Methods of test for screed materials — Part 5: Determination of wear resistance to rolling
wheel of screed material for wearing layer
EN 13892-6, Methods of test for screed materials — Part 6: Determination of surface hardness
EN 13892-7, Methods of test for screed materials — Part 7: Determination of wear resistance to rolling
wheel of screed material with floor coverings
EN 13892-8, Methods of test for screed materials — Part 8: Determination of bond strength
prEN 13892-9:2017, Methods of test for screed materials — Part 9: Shrinkage and swelling
EN ISO 178, Plastics - Determination of flexural properties (ISO 178)
EN ISO 6272-1, Paints and varnishes — Rapid-deformation (impact resistance) tests — Part 1: Falling-
weight test, large-area indenter (ISO 6272-1)
EN ISO 10456, Building materials and products — Hygrothermal properties —Tabulated design values
and procedures for determining declared and design thermal values (ISO 10456)
3 Terms and definitions
For the purpose of this document, the terms and definitions described in EN 13318 apply.
7

---------------------- Page: 9 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
4 Designation of screed materials and characteristics
Screed materials shall be designated as one of the following types, according to the binder used and to
the definitions given in EN 13318:
CT cementitious screeds
CA calcium sulfate screeds
MA magnesite screeds
AS mastic asphalt screeds
SR synthetic resin screeds
For each type it is possible to have different classes, related to the different characteristics, designated
with the following abbreviations:
C for compressive strength
σ for compressive stress at 10 % strain
10
F for flexural strength
D for density
A for wear resistance “Böhme”
AR for wear resistance “BCA”
RWA for wear resistance to rolling wheel
SH for surface hardness
IC for resistance to indentation
IR for impact resistance
B for bond strength
SK for shrinkage
EM for elastic modulus
WP for water permeability
CDF for freeze–thaw resistance
5 Product characteristics
5.1 General
The requirements and properties specified in this standard shall be defined in terms of the test methods
and procedures referred to in this standard. For these tests the screed material shall be sampled and
the test specimens made and cured in accordance with EN 13892-1.
The conformity criteria given in the following subclauses relate to type tests and production control.
The following classes for screed materials in this clause are definitive and may not be defined using
intermediate values.
NOTE 1 The screed properties under site conditions cannot always be directly comparable with the screed
material properties obtained under laboratory conditions, due for instance to variations of mixing, compaction or
curing.
8

---------------------- Page: 10 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
In Table 1 there are three different types of characteristics given.
Basic characteristics (B) and relevant characteristics (R) may be relevant for intended uses.
NOTE 2 Basic characteristics (B) generally identify a product whereas relevant characteristics (R) provide
further information relevant to specific applications.
Special characteristics (S) provide further information about its general performance.
Table 1 — Type related for physico-mechanical characteristics
Screed material
Internal use
Characteristic Test method
Characteristics for all intended uses
Compressive Strength EN 13892–2 C B B B B - R
U
EN 13892–2 B B B B - R
U
Flexural Strength F
c
EN ISO 178 - - - - - R
Density EN 1015–10 D R R R R R R
a
Wear Resistance :
“Böhme“ EN 13892–3 A R R R R R -
A A A A A
“BCA“ EN 13892–4 AR R R R R R R
A A A A A A
“rolling wheel“ EN 13892–5 RWA R R R R R R
A A A A A A
Surface Hardness EN 13892–6 SH - - - R - -
A
Resistance to
EN 12697–20 IC - - - - B -
indentation
pH value EN 13454–2 pH - - B - - -
Impact resistance EN ISO 6272-1 IR - - - - - R
A
Bond strength EN 13892–8 B R R R R - R
prEN 13892–
Shrinkage SK R R R R - R
9:2017
Modulus of elasticity in
EN 13412 EM R R R R - R
compression
Vertical Water
b
EN 12697–19 WP B - - - - -
U
Permeability
9
Abbreviation
Cementitious
External
use
CT
Cementitious
CT
Calcium sulfate
CA
Magnesite
MA
Mastic asphalt
AS
Synthetic resin
SR

---------------------- Page: 11 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
b
Freeze–thaw resistance CEN/TS 12390–9 CDF B - - - - -
d d
Compressive Stress EN 826 σ R R R R  R
10
Special Characteristics
Consistency EN 13454–2 CON S S S S - S
Setting time EN 13454–2 SET S S S S - -
Resistance to rolling
RWF
wheel with floor EN 13892–7 S S S S S S
C
covering
Chemical resistance EN 13529 CR S S S S S S
Water vapour
EN 12086 WVP S S S S S S
permeability
Electrical resistance EN 1081 ER S S S S S S
Thermal resistance EN 12664 TR S S S S S S
Other characteristic Indicate method used S S S S S S
Key:
- = not applicable characteristic
A = screed material intended for wearing surface
U = screed material intended for underlying layer
a
The use of one of the wear resistance tests is sufficient.
b
For underlying layers, the use of one of the two tests is sufficient.
c
Only for synthetic resin with layer thickness < 5 mm.
d
Only for the identification of the lightweight screed material.

10

---------------------- Page: 12 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
5.2 Characteristics related to mechanical resistance
In Tables 2 to 6 characteristics for mechanical resistance of different types of screed materials and
different intended use are indicated.
Table 2 — Characteristics for mechanical resistance of cementitious screed materials (CT)
BASIC CHARACTERISTICS (B)
2 a INTERNAL USE
Characteristic Abbreviation Test Method
Compressive strength C EN 13892–2
Flexural strength F EN 13892–2
c

Density D EN 1015–10
2 b EXTERNAL USE
Characteristic Abbreviation Test Method
Compressive strength C EN 13892–2
Flexural strength F EN 13892–2
Vertical Water Permeability (only for underlying
WP EN 12697–19
a
layer)
a

Freeze–thaw resistance CDF CEN/TS 12390–9

2 c RELEVANT CHARACTERISTICS (R)
Characteristic Abbreviation Test Method
b
Wear resistance (intended for wearing surface)
“Bohme” A EN 13892–3
“BCA” AR EN 13892–4
“rolling wheel RWA EN 13892–5
Bond strength (intended for bonded screed) B EN 13892–8
prEN 13892–
Shrinkage SK
9:2017
Modulus of elasticity in compression EM EN 13412
d
Compressive stress at 10 % strain σ EN 826
10
a
 For underlying layer use one of the two tests.
b
 Use one of three wear resistance tests.
c
 Only for the identification of the lightweight screed material.
d
 Only for the identification of the lightweight screed material instead of testing compressive strength.
11

---------------------- Page: 13 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
Table 3 — Characteristics for mechanical resistance of calcium sulfate screed materials (CA)
BASIC CHARACTERISTICS (B)
3 a INTERNAL USE
Characteristic Abbreviation Test Method
Compressive strength C EN 13892–2
Flexural strength F EN 13892–2
pH value PH EN 13454–2
b
Density D EN 1015–10

3 b RELEVANT CHARACTERISTICS (R)
Characteristic Abbreviation Test Method
a
Wear resistance (intended for wearing surface)
“Bohme” A EN 13892–3
“BCA” AR EN 13892–4
“rolling wheel RWA EN 13892–5
Bond strength (intended for bonded screed) B EN 13892–8
prEN 13892–
Shrinkage SK
9:2017
Modulus of elasticity in compression EM EN 13412
c
Compressive stress at 10 % strain σ EN 826
10
a
 Use one of three wear resistance tests
b
 Only for the identification of the lightweight screed material
c
 Only for the identification of the lightweight screed material instead of testing compressive strength
12

---------------------- Page: 14 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
Table 4 — Characteristics for mechanical resistance of magnesite screed materials (MA)
BASIC CHARACTERISTICS (B)
4 a INTERNAL USE
Characteristic Abbreviation Test Method
Compressive strength C EN 13892–2
Flexural strength F EN 13892–2
Surface hardness (only for wearing surfaces) SH EN 13892–6
b
Density D EN 1015–10

4 b RELEVANT CHARACTERISTICS (R)
Characteristic Abbreviation Test Method
a
Wear resistance (intended for wearing surface)
“Bohme” A EN 13892–3
“BCA” AR EN 13892–4
“rolling wheel RWA EN 13892–5
Bond strength (intended for bonded screed) B EN 13892–8
prEN 13892–
Shrinkage SK
9:2017
Modulus of elasticity in compression EM EN 13412
c
Compressive stress at 10 % strain σ EN 826
10
a
 Use one of three wear resistance tests.
b
 Only for the identification of the lightweight screed material.
c
 Only for the identification of the lightweight screed material instead of testing compressive strength.
Table 5 — Characteristics for mechanical resistance of mastic asphalt screed materials (AS)
BASIC CHARACTERISTICS (B)
5 a INTERNAL USE
Characteristic Abbreviation Test Method
Resistance to indentation IC EN 12697–20
a
Density D EN 1015–10

RELEVANT CHARACTERISTICS (R)
b
Compressive stress at 10 % strain σ EN 826
10
a
 Only for the identification of the lightweight screed material.
b
 Only for the identification of the lightweight screed material instead of testing compressive strength.

13

---------------------- Page: 15 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
Table 6 — Characteristics for mechanical resistance of synthetic resin screed materials (SR)
6 a BASIC CHARACTERISTICS (B)
Characteristic Abbreviation Test Method
Compressive strength (only for underlying layer) C EN 13892–2
Flexural strength (only for underlying layer) F EN 13892–2
Bond strength (only for wearing surface) B EN 13892–8
b
Density D EN 1015–10

6 b RELEVANT CHARACTERISTICS (R)
Characteristic Abbreviation Test Method
a
Wear resistance (intended for wearing surface)
“Bohme” A EN 13892–3
“BCA” AR EN 13892–4
“rolling wheel RWA EN 13892–5
Impact resistance (intended for wearing surface) IR EN 13892–6
prEN 13892–
Shrinkage SK
9:2017
Flexural strength (intended for layer
F EN ISO 178
thickness < 5 mm)
Bond strength (intended for bonded underlying
B EN 13892–8
layer)
c
Compressive stress at 10 % strain σ EN 826
10
a
 Use one of three wear resistance tests.
b
 Only for the identification of the lightweight screed material.
c
 Only for the identification of the lightweight screed material instead of testing compressive strength.

5.3 Reaction to fire
5.3.1 General
Where use of a screed material is subject to regulatory requirements on reaction to fire, its reaction to
fire performance shall be declared as the class in accordance with EN 13501-1, based on one of the
following options:
a) either without the need for testing (CWT) according to 4.4.2 or without the need for further testing
(CWFT) according to 4.4.3, when meeting the requirements, specified in therein, or otherwise
b) based on results of the test method(s), relevant to specific reaction to fire class, and carried out in
accordance with the standard(s) referred to in EN 13501-1, as specified in 4.4.4.
14

---------------------- Page: 16 ----------------------
oSIST prEN 13813:2017
prEN 13813:2017 (E)
5.3.2 Screed materials classified as Class A1 without the need for testing (CWT)
1)
The reaction to fire performance of a given type of screed material may be declared as Class A1
without the need for testing, provided that it contains not more than 1 % of homogeneously distributed
organic material, by mass or volume (whichever is the most onerous).
5.3.3 Screed materials classified as class E without the need for further testing (CWFT)
The reaction to fire performance of a given type of screed material may be declared as class given in
2)
Tables 7 and 8 , when meeting the requirements for specific type of screed material, specified therein.
Table 7 — Classes of reaction-to-fire performance for cementitious and calcium sulphate screeds
Organic content Maximum layer
a b
Product Class
(% in weight) thickness (mm)
Cementitious screeds according to prEN 13813
< 20 30 E
Calcium sulphate screeds according to prEN 13813
a 3
Mounted on any substrate of at least class D-s2, d0 and with density ≥ 680 kg/m .
b
Class E as provided for in Table 1 of the Annex to Commission Decision 2000/147/EC when the screed is
used as underlying layer.
Table 8 — Classes of reaction-to-fire performance for synthetic resin screeds
Organic content Maximum layer
a b
Product Class
(% in weight) thickness (mm)
Unfilled synthetic resin floor screeds with binder
made of epoxy resin or polyurethane resin or
100 4
polymethylmethacrylates resin or vinylester resin
in accordance wi
...