EN 18088:2025

SLOVENSKI STANDARD
01-oktober-2025
Hidroizolacijski trakovi - Recikliranje polimerov in reciklirani polimeri - Polimerni
hidroizolacijski trakovi
Flexible sheets for waterproofing - Plastics recycling and recycled plastics - Plastic
waterproofing sheets
Abdichtungsbahnen - Kunststoffrecycling und recycelte Kunststoffe - Kunststoffbahnen
für Abdichtungen
Feuilles souples d’étanchéité - Recyclage des plastiques et plastiques recyclés - Feuilles
d’étanchéité en plastique
Ta slovenski standard je istoveten z: EN 18088:2025
ICS:
13.030.50 Recikliranje Recycling
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 18088
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2025
EUROPÄISCHE NORM
ICS 13.030.50
English Version
Flexible sheets for waterproofing - Plastics recycling and
recycled plastics - Plastic waterproofing sheets
Feuilles souples d'étanchéité - Recyclage des plastiques Abdichtungsbahnen - Kunststoffrecycling und recycelte
et plastiques recyclés - Feuilles d'étanchéité en Kunststoffe - Kunststoffbahnen für Abdichtungen
plastique
This European Standard was approved by CEN on 9 June 2025.

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 CEN-CENELEC Management Centre 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 18088:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Typical application systems . 8
5 Characterization . 9
5.1 General. 9
5.2 Visual characteristics . 9
5.3 Physical characteristics . 9
5.4 Mechanical characteristics . 10
5.5 Thermal characteristics . 10
5.6 Content . 10
6 Quality assurance . 10
7 Recycled content . 10
8 Design for recycling . 11
Annex A (informative) Examples to illustrate some definitions and guidance for calculating
recycled content in products . 12
Annex B (informative) Flowchart for plastic recovery options. 16
Bibliography . 17

European foreword
This document (EN 18088:2025) has been prepared by Technical Committee CEN/TC 254 “Flexible
sheets for waterproofing”, the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2026, and conflicting national standards shall
be withdrawn at the latest by February 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the United
Kingdom.
Introduction
This document is in accordance with the European Commission implementing decision M/584 on a
standardization request to the European Committee for Standardization and the European Committee
for Electrotechnical Standardization as regards plastics recycling and recycled plastics in support of the
European Strategy for Plastics in a Circular Economy.
A plastic waterproofing sheet is an article as identified in article 3 of Regulation (EU) N° 1907/2006
(REACH). It contains no substances which are intended to be released from the article under normal or
reasonably foreseeable conditions of use. Based on current knowledge, plastic waterproofing sheets do
not contain SVHC (substances of very high concern) as listed in Annex XIV of the REACH regulation or on
the candidate list published by the European Chemicals Agency in concentrations above 0,1 % (mass %).
Under the umbrella from the European Union’s Waste Framework Directive 2008/98/EC recycling of
waste is one type of material recovery process intended to save resources (virgin raw material, water,
and energy), while minimizing harmful emissions into air, water, and soil as well as any impacts on
human health. The environmental impact of recycling should be assessed over the whole life cycle of the
product.
It might be impossible to trace back each individual product including its components of the product at
the end user stage and to check whether the product has been used correctly through its life. It is possible
that during the lifetime contamination with other materials might occur that could affect the product’s
suitability for recycling into the intended application.
1 Scope
Plastic waterproofing sheets generate plastic waste at different stages during their life cycle: production,
construction process, service life and end-of-life.
This document specifies the source of recyclate made from pre-consumer material and post-consumer
material as it is used in new products. These new products can be plastic waterproofing sheets, other
sheets, other construction products or other products.
It defines terms and definitions.
It gives guidance for assessing the recyclates intended for use in the production of new products.
This document is applicable for similar products as construction sheets or membranes consisting of
polymers or plastic components such as: swimming pool membranes, geosynthetic membranes, garden
ponds membranes, protection membranes, accessories based on thermoplastic material such as
walkways, prefabricated pieces. The listing is not exhaustive.
NOTE The design for recycling of packaging, including the recycling itself, is defined in the CEN/TC 261
“Packaging”.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions 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
design for recycling
product design aiming to ensure that the product is recyclable with state-of-the-art collection, sorting
and recycling processes and a recovery and recycling scheme exists for this product
3.2
plastic
material consisting of a polymer, to which additives or other substances may have been added, excluding
natural polymers that have not been chemically modified
Note 1 to entry: A polymer functions as a main component of various sheets for waterproofing.
Note 2 to entry: A definition of polymer can be found in point 5 of Article 3 of Regulation (EC) 1907/2006.
3.3
thermoplastic
product with the capability of being softened by heating and hardened by cooling through a temperature
range characteristic of the plastic
Note 1 to entry: Typical production technologies are extrusion, calendering, moulding, etc.
3.4
synthetic material
material created through chemical engineering
Note 1 to entry: Within EN 13956:2012 and EN 13967:2012+A1:2017 three groups of synthetic material are used
in the application of flexible sheets for waterproofing: plastics, rubbers and thermoplastic rubbers. Within
EN 14909:2012 material are grouped as follow: thermoplastics, thermoplastics-elastomers, and elastomers.
3.5
waste
plastic material which the holder discards, or intends to discard, or is required to discard
Note 1 to entry: Waste hierarchy prioritizes waste prevention and management operations: prevention, preparing
for re-use, recycling, other recovery, disposal.
Note 2 to entry: In industry the term scrap is often used to indicate discarded material.
3.6
recovered material
plastic material that has been separated, diverted or removed from the solid-waste stream in order to be
recycled or used to substitute virgin raw material
[SOURCE: EN ISO 472:2013, 2.1703]
3.7
plastic recyclate
plastic material resulting from the recycling of plastic waste, that is no longer waste
Note 1 to entry: Plastic recyclates can be used for the manufacturing of new articles or products and can be
reformulated using additives.
Note 2 to entry: Used plastic material loses its characteristics as waste as soon as it is treated in such a way that it
is separated, diverted or removed from the solid-waste stream in order to be recycled or used to substitute virgin
raw material. It is then called recovered material (see Annex B).
3.8
recycling
processing of plastic waste material and intended use for the original purpose or for other purposes,
excluding energy recovery and the production of material that are to be used as fuels or for backfilling
operations
Note 1 to entry: An elaborated definition is available in Directive 2008/98/EC of the European Parliament and of
the Council on waste.
Note 2 to entry: In Annex B a schematic diagram of some plastic recovery options (ISO 15270:2008) is enclosed.
3.9
mechanical recycling
processing of plastic waste into secondary raw material or products without significantly changing the
chemical structure of the material
3.10
chemical recycling
conversion of polymers into chemical substances by changing the chemical structure of plastic waste
through processes such as cracking, gasification or depolymerisation, excluding energy recovery and the
production of material that are to be used as fuels or for backfilling operations
Note 1 to entry: “Feedstock recycling” is widely used as a synonym for “chemical recycling”.
Note 2 to entry: “Chemical substances” can be understood to include the chemical building blocks of new polymers.
Note 3 to entry: Reference is made to EN 17615:2022 for further terminology related to recyc
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