Design-for-recycling guidelines for plastic construction products - Thermal insulation products of expanded polystyrene (EPS)

This document specifies the general “design for recycling” guidelines for EPS raw materials. It provides guidance on the impact of specific design characteristics on the recyclability of the product in practice and recommended design options to ensure that the product is recyclable, including target values and performance ranges, where applicable. It also provides a definition of recyclable product and of design for recycling.
This document refers to the recycling processes of EPS products. The sorting and collecting steps are not part of this document.
This document takes into account all currently known processes that are suitable to enable the circular economy for insulation materials. Particular attention is paid to ensuring that the most energy-efficient processes are given preference, especially mechanical recycling, unless reuse is already ruled out.
For some of these processes, practical experience has been gained over many years, so a basic knowledge base for the development of a guideline is already available.
At the same time, it is important to also take into account future-oriented processes, for which at the moment little but increasing experience is available or which have so far only been implemented on a small scale.

Design-for-Recycling-Leitlinien für Bauprodukte aus Kunststoff - Wärmedämmstoffe aus expandiertem Polystyrol (EPS)

In diesem Dokument werden die allgemeinen Richtlinien für „recyclingorientierte Gestaltung“ für EPS-Ausgangsstoffe festgelegt. Es enthält eine Anleitung zur Auswirkung bestimmter Auslegungsmerkmale auf die Recyclingfähigkeit des Produkts in der Praxis und empfohlene Auslegungsmöglichkeiten, um die Recyclingfähigkeit des Produkts sicherzustellen, einschließlich Zielwerten und Leistungsbereichen, wenn anwendbar. Es enthält auch eine Definition des Begriffs "recyclingfähiges Produkt" und "recyclinggerechte Konstruktion".
Dieses Dokument bezieht sich auf die Recyclingprozesse von EPS-Produkten. Die Sortier- und Sammelschritte sind in diesem Dokument nicht enthalten.
In diesem Dokument werden alle derzeit bekannten Prozesse berücksichtigt, die dafür geeignet sind, die Kreislaufwirtschaft für Wärmedämmstoffe zu ermöglichen. Dabei wird besonders darauf geachtet, dass die energieeffizientesten Prozesse bevorzugt werden, insbesondere das werkstoffliche Recycling, sofern eine Wiederverwendung nicht bereits ausgeschlossen ist.
Für einige dieser Prozesse wurden langjährige praktische Erfahrungen gesammelt, so dass bereits eine grundlegende Wissensbasis für die Entwicklung einer Leitlinie zur Verfügung steht.
Gleichzeitig ist es wichtig, auch zukunftsweisende Prozesse zu berücksichtigen, für die im Moment noch wenige, aber zunehmende Erfahrungen zur Verfügung stehen oder die bisher nur in kleinem Maßstab umgesetzt wurden.

Lignes directrices pour la conception en vue du recyclage des produits de construction en plastique - Produits d'isolation thermique en polystyrène expansé (EPS)

Le présent document spécifie les lignes directrices générales de « conception en vue du recyclage » pour les matières premières en EPS. Il fournit des conseils au sujet de l’incidence des caractéristiques spécifiques de conception sur la recyclabilité du produit dans la pratique, et recommande des options de conception pour veiller à ce que le produit soit recyclable, y compris les valeurs cibles et les gammes de performance, le cas échéant. Il fournit également une définition d’un produit recyclable et de la conception en vue du recyclage.
Le présent document fait référence aux procédés de recyclage des produits en EPS. Les étapes de tri et de collecte ne font pas partie de ce document.
Ce document prend en compte tous les procédés actuellement connus qui sont appropriés pour rendre possible l’économie circulaire en ce qui concerne les matériaux d’isolation. Il s’agit tout particulièrement de veiller à ce que les procédés les plus efficaces sur le plan énergétique soient privilégiés, notamment le recyclage mécanique, sauf si la réutilisation est d’ores et déjà exclue.
Pour certains de ces procédés, une expérience pratique a été acquise au cours de nombreuses années, de sorte que l’on dispose déjà d’une base de connaissances pour l’élaboration d’une ligne directrice.
Dans le même temps, il est important de prendre en compte les procédés orientés vers l’avenir, pour lesquels on ne dispose pour l’instant que d’une expérience limitée mais croissante, ou qui n’ont encore été mis en oeuvre qu’à petite échelle.

Smernice za načrtovanje recikliranja plastičnih gradbenih izdelkov - Toplotnoizolacijski proizvodi iz ekspandiranega polistirena (EPS)

General Information

Status
Not Published
Publication Date
13-Jul-2025
Current Stage
4020 - Submission to enquiry - Enquiry
Start Date
06-Jun-2024
Due Date
26-Feb-2024
Completion Date
06-Jun-2024

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SLOVENSKI STANDARD
01-julij-2024
Smernice za načrtovanje recikliranja plastičnih gradbenih izdelkov -
Toplotnoizolacijski proizvodi iz ekspandiranega polistirena (EPS)
Design-for-recycling guidelines for plastic construction products - Thermal insulation
products of expanded polystyrene (EPS)
Design-for-Recycling-Leitlinien für Bauprodukte aus Kunststoff - Wärmedämmstoffe aus
expandiertem Polystyrol (EPS)
Lignes directrices pour la conception en vue du recyclage des produits de construction
en plastique - Produits d'isolation thermique en polystyrène expansé (EPS)
Ta slovenski standard je istoveten z: prEN 18092
ICS:
13.030.50 Recikliranje Recycling
83.080.20 Plastomeri Thermoplastic materials
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
June 2024
ICS 13.030.50; 83.080.20; 91.100.60
English Version
Design-for-recycling guidelines for plastic construction
products - Thermal insulation products of expanded
polystyrene (EPS)
Lignes directrices pour la conception en vue du Design-for-Recycling-Leitlinien für Bauprodukte aus
recyclage des produits de construction en plastique - Kunststoff - Wärmedämmstoffe aus expandiertem
Produits d'isolation thermique en polystyrène expansé Polystyrol (EPS)
(EPS)
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 18092:2024 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 rEPS raw material . 8
4.1 General . 8
4.2 rEPS-1 . 8
4.3 shredEPS raw material resulting from cut off (IRM) . 9
4.4 rEPS-1 raw material resulting from PIR and/or PCR. 9
5 Recycling pathways . 9
5.1 General . 9
5.2 Physical recycling pathway . 10
5.2.1 Shredding. 10
5.2.2 Extrusion . 10
5.2.3 Dissolution . 10
5.3 Chemical recycling pathway . 10
5.3.1 General . 10
5.3.2 Depolymerisation . 10
5.3.3 Thermolysis . 10
6 General design principles for EPS raw material . 11
6.1 Additives . 11
6.2 Recyclability of an EPS product . 12
6.3 Recommended design options for EPS products . 12
Bibliography . 13
European foreword
This document (prEN 18092:2024) 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 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.
Introduction
The term “design for recycling” is used in various contexts. It might encourage the development of
products in a way that they can easily be recycled after the use phase. However, in the construction
industry, products generally must fulfil requirements as given in national regulations on essential
characteristics as described in harmonized product standards. To enable the declaration of these required
characteristics, a number of data must be collected and evaluated including data for raw material that is
the starting point for these products. If it would be necessary to change the raw material and/or the
product itself in order to improve its recyclability, it must first be checked whether this change affects
one of the above-mentioned basic requirements. All the processes described above to maintain the safe
use of building products still have to be taken into account.
Another key difference from e.g. the consumer goods industry is the duration of use of construction
applications. Plastics used in construction sometimes remain there for the entire life of the building,
which can be decades and even more than a hundred years. This implies that recycling of the construction
materials used does not take place until much later, which is why there are only small quantities available
from demolition that can be added to new applications as recycled materials. Nevertheless, the recycling
rate can be increased by ensuring that other waste streams are also accepted as recycled content so that
they can contribute to a circular economy. In the production of EPS products, the use of recycled material
is common practice for years long before the recycling discussion was opened. Driver for that was the
avoidance of waste or recovery of waste. This means that the currently existing applications are already
designed in a way that they can accept a certain amount of recycled material while still complying with
the basic requirements for construction works.
The term “rEPS” according to the standardization request M/584 must be understood as “rEPS raw
material” which is an expandible raw material as an outcome of a recycling process. It must not be
confused with an expanded polystyrene insulation board which is produced from an EPS or rEPS raw
material.
In the context of EPS recycling, EPS scraps generated in the factory cutting lines are routinely returned to
the moulding process even if, according to the Waste Framework Directive (WFD 2008/98/EC), they are
not classified as waste. Clean cut-offs from construction sites can meet the same quality criteria as
internally reused material (IRM). The same technical procedures can be used regardless of the origin of
the material.
For the given reasons, the purposes of this document DfR can also be used to evaluate how past EPS
insulation-based application and materials can be recycled, as well as future construction techniques and
materials. Future recycling processes even might be able to recycle products that were produced with
ingredients which are not used anymore. However, this is not requested by the SReq.
1 Scope
This document specifies the general “design for recycling” guidelines for EPS raw materials. It provides
guidance on the impact of specific design characteristics on the recyclability of the product in practice and
recommended design options to ensure that the product is recyclable, including target values and
performance ranges, where applicable. It also provides a definition of recyclable product and of design
for recycling.
This document refers to the recycling processes of EPS products. The sorting and collecting steps are not
part of this document.
This document takes into account all currently known processes that are suitable to enable the circular
economy for insulation materials. Particular attention is paid to ensuring that the most energy-efficient
processes are given preference, especially mechanical recycling, unless reuse is already ruled out.
For some of these processes, practical experience has been gained over many years, so a basic knowledge
base for the development of a guideline is already available.
At the same time, it is important to also take into account future-oriented processes, for which at the
moment little but increasing experience is available or which have so far only been implemented on a
small scale.
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
EPS raw material
primary or secondary material in the form of granulates with blowing agent that is used to produce an
EPS product
Note 1 to entry: In this document, this expression is used to refer to raw material.
3.2
EPS product
factory made expanded polystyrene product, with or without rigid or flexible facings or coatings, which
is used for the thermal insulation of buildings
Note 1 to entry: In this document, this expression is used to refer to expanded polystyrene foam.
Note 2 to entry: EPS products are manufactured in the form of boards or rolls or other preformed ware (flat,
tapered, tongue and grooves, shiplap, profiled, etc.).
3.3
recyclability
potential of items or materials to be recycled as defined by the relevant standards and regulations in force
3.4
design for recycling
DfR
guidelines on the recyclability of EPS raw materials and the conversion of recyclates to a secondary rEPS
raw material
Note 1 to entry: It is neither about sorting nor collecting.
3.5
internally reused material
IRM
off-cuts, regularly generated during the production process, which are re-used in the same production
process
3.6
prevention
measures taken before a substance, material or product has become waste, that reduce:
(a) the quantity of waste, including through the re-use of products or the extension of the life span of
products;
(b) the adverse impacts of the generated waste on the environment and human health; or
(c) the content of hazardous substances in materials and products
Note 1 to entry: Material, regularly generated during the production process, retur
...

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