prEN 16383

SLOVENSKI STANDARD
01-januar-2025
Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje
vodotesnosti zunanjih toplotnoizolacijskih kompozitnih sistemov z ometi (ETICS
kompleti)
Thermal insulation products for building applications - Determination of the water
tightness of external thermal insulation composite kits with a rendering system (ETICS
kits)
Wärmedämmstoffe für das Bauwesen - Bestimmung der Wasserdichtheit von
außenseitigen Wärmedämm-Verbundsystemen mit Putzen (WDVS)
Produits isolants thermiques destinés aux applications du bâtiment - Détermination de
l’étanchéité à l’eau des kits composites d’isolation thermique extérieure avec un système
d’enduit (kits ETICS)
Ta slovenski standard je istoveten z: prEN 16383
ICS:
91.100.60 Materiali za toplotno in Thermal and sound insulating
zvočno izolacijo materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2024
ICS 91.100.60 Will supersede EN 16383:2016
English Version
Thermal insulation products for building applications -
Determination of the water tightness of external thermal
insulation composite kits with a rendering system (ETICS
kits)
Produits isolants thermiques destinés aux applications Wärmedämmstoffe für das Bauwesen - Bestimmung
du bâtiment - Détermination de l'étanchéité à l'eau des der Wasserdichtheit von außenseitigen Wärmedämm-
kits composites d'isolation thermique extérieure avec Verbundsystemen mit Putzen (WDVS)
un système d'enduit (kits ETICS)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 88.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16383:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Testing devices . 6
6 Test wall . 6
6.1 Preparation of the test wall . 6
6.1.1 General. 6
6.1.2 Test wall with one opening . 6
6.1.3 Test wall with two openings . 7
6.2 Conditioning of the test wall . 8
7 Hygrothermal cycles to which the test wall is exposed. 8
7.1 General. 8
7.2 ‘Heating and wetting’ . 9
7.3 ‘heating and cooling’ . 9
7.4 ‘wetting, freezing and thawing’ . 10
8 Assessment of the test wall after the hygrothermal cycles. 11
9 Test report . 11
European foreword
This document (prEN 16383:2024) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 16383:2016.
This document includes the following significant technical changes with respect to EN 16383:2016:
— the normative references have been updated;
— terms and definitions have been revised;
— editorial changes in Clause 6, Clause 7 and Clause 8 have been made;
— the test report, Clause 9, was revised.
1 Scope
This document specifies the equipment and procedures for determining the water tightness of external
thermal insulation composite kits with a rendering system (ETICS kits).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 998-1, Specification for mortar for masonry - Part 1: Rendering and plastering mortar
EN 15824, Specifications for external renders and internal plasters based on organic binders
EN ISO 9229, Thermal insulation - Vocabulary (ISO 9229)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 9229 and the following
apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
substrate
part of the wall or test assembly to which an ETICS kit is fixed
3.2
test wall
substrate covered by an ETICS kit or set of ETICS kits to test the water tightness
3.3
adhesive
component used for bonding the thermal insulation to the substrate or used for an adhesive bed
Note 1 to entry: Adhesives are available as dry mix, ready to use or PU adhesive foam.
3.4
thermal insulation
component, thermal insulation material in its finished form, including all directly and factory-applied
facings or coatings
3.5
mechanical fixing device
component used for fixing parts of a kit to the substrate
3.6
base coat
component applied directly to the thermal insulation after fixing and/or bonding to the substrate
Note 1 to entry: Base coats are available as dry mix or ready to use.
Note 2 to entry: Base coats contain either organic or inorganic binders.
3.7
reinforcement
component, mesh, embedded in the base coat to reinforce the rendering system
3.8
reinforced base coat
base coat with embedded reinforcement
3.9
key coat
component applied to the base coat as a preparation for the application of the finishing coat
Note 1 to entry: A key coat is a very thin coating material which can be applied to the base coat as a preparation
for the application of the finishing coat. It can also be used for aesthetic reasons.
3.10
finishing coat
component, available as dry mix mortar or ready to use mortar, applied to the reinforced base coat or
key coat
Note 1 to entry: Finishing coats are available as dry mix or ready to use.
Note 2 to entry: Finishing coats contain either organic or inorganic binders.
3.11
decorative coat
component which is applied to the finishing coat
Note 1 to entry: A decorative coat is a thin coating material, mainly used for aesthetic reasons.
3.12
finishing layer
finishing coat with a key coat (optional) and/or a decorative coat (optional)
4 Principle
Expose an ETICS kit or part of an ETICS kit to a set out of hygrothermal cycles of heating, wetting,
cooling and freeze/thaw cycles.
5 Testing devices
The following test devices are necessary:
— device for heating the surface of the assembled kit regulated to (70 ± 5) °C and maintaining the
relative humidity of the air close to the surface of the kit to less than 30 %;
— device for wetting the surface of the kit with tap or demineralized or deionized water with a
temperature of (15 ± 5) °C and an amount of (1,5 ± 0,5) l/(m min) with the use of spraying nozzles
to ensure uniform water distribution;
— device for cooling the surface of the kit to (−20 ± 5) °C.
These devices shall meet the required test conditions described in Clause 7.
6 Test wall
6.1 Preparation of the test wall
6.1.1 General
The ETICS kit(s) shall be applied to the substrate according to the instructions of the system holder.
The thermal insulation shall be fixed to the substrate and covered by the reinforced base coat. The
perimeter edges of the test wall shall be wrapped/covered with the reinforced base coat. The upper 2/3
of the height of the test wall shall be covered additionally with one or more finishing layers according to
Figure 1 and Figure 2. Within the lower 1/3 from the bottom edge shall be at least one horizontal joint
between the thermal insulation boards (see “a” in Figure 1 and Figure 2). The distance between the
horizontal joint and the 1/3 of the height of the test wall (see “b” in Figure 1 and Figure 2) shall be at
least 200 mm.
If the height of the thermal insulation board is bigger than 1/3 of the height of the test wall minus
200 mm, the thermal insulation board shall be cut properly.
The test wall shall have openings according to 6.1.2 or 6.1.3.
6.1.2 Test wall with one opening
The dimensions of the weathered surface of the test wall shall be as following dimensional
characteristics (see Figure 1):
— width: ≥ 2,5 m;
— height: ≥ 2,0 m.
In the middle of the upper 2/3 of the total height of the test wall, one opening shall be included (see
Figure 1). The opening shall have a width of (0,5 ± 0,1) m and a height of (0,5 ± 0,1) m. The opening
shall be obtained by a recess in the thermal insulation. Edges and corners of the opening shall be
covered with the reinforced base coat and finishing layer(s).
The lower horizontal area of the opening shall be protected against water penetration. The edges of the
openings to the substrate shall be sealed.
Two different ETICS kits noted as 1 and as 2 can be tested on the test wall instead of only one. In this
case the test wall shall be divided vertically in the middle (see Figure 1). The two ETICS kits shall
provide the same reinforced base coat. If two different thermal insulations are tested, they shall have
the same thickness. In any case, the nominal thickness/coverage of the reinforced base coat shall be the
same.
NOTE The two different thermal insulations are of the same or different thermal insulation material or type.
Dimensions in metres
Key
1 ETICS kit 1
2 ETICS kit 2
a 1/3 of the total height of the test wall
b at least 200 mm
Figure 1 — Scheme of the test wall with one opening
6.1.3 Test wall with two openings
The dimensions of the weathered surface of the test wall shall be as following (see Figure 2):
— width: ≥ 3,0 m;
— height: ≥ 2,0 m.
In the middle of each half side of the upper 2/3 of the total height of the test wall, one opening shall be
included (see Figure 2). The two openings shall have a width of (0,5 ± 0,1) m and a height of
(0,5 ± 0,1) m. The openings shall be obtained by a recess in the thermal insulation. Edges and corners of
the openings shall be covered with the reinforced base coat and finishing layer(s).
The lower horizontal area of the openings shall be protected against water penetration. The edges of
the openings to the substrate shall be sealed.
Four different ETICS kits noted as 1, 2, 3 and 4 can be tested on
...