SIST EN 17140:2021

SLOVENSKI STANDARD
01-januar-2021
Toplotnoizolacijski proizvodi za stavbe - Industrijsko izdelani vakuumski
izolacijski paneli (VIP) - Specifikacija
Thermal insulation products for buildings - Factory made Vacuum Insulation Panels (VIP)
- Specification
Wärmedämmstoffe für Gebäude - Werksmäßig hergestellte Vakuumisolationspanele
(VIP) - Spezifikation
Produits isolants thermiques pour le bâtiment - Panneaux Isolants sous Vide produits de
façon industrielle (VIP) - Spécification
Ta slovenski standard je istoveten z: EN 17140:2020
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.

EN 17140
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2020
EUROPÄISCHE NORM
ICS 91.100.60
English Version
Thermal insulation products for buildings - Factory-made
vacuum insulation panels (VIP) - Specification
Produits isolants thermiques pour le bâtiment - Wärmedämmstoffe für Gebäude - Werksmäßig
Panneaux Isolants sous Vide produits de façon hergestellte Vakuumisolationspaneele (VIP) -
industrielle (PIV) - Spécification Spezifikation
This European Standard was approved by CEN on 1 September 2020.

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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17140:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions, symbols, units and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Symbols and abbreviated terms . 7
4 Characteristics . 10
4.1 Reaction to fire . 10
4.2 Propensity to undergo continuous smouldering . 10
4.3 Release of VOCs . 11
4.4 Compressive strength . 11
4.5 Tensile/flexural strength . 11
4.6 Thermal resistance . 12
4.7 Durability aspects . 12
5 Assessment methods . 13
5.1 General . 13
5.2 Test methods . 14
6 Assessment and verification of constancy of performance - AVCP . 21
6.1 General . 21
6.2 Assessment of performance . 21
6.3 Verification of constancy of performance . 23
Annex A (normative) Determination of the expressed values of thermal resistance and
thermal conductivity . 25
Annex B (normative) Factory production control (FPC) . 27
Annex C (normative) Determination of the aged values of thermal resistance and thermal
conductivity including edge effect . 30
Annex D (normative) Measurement of p1/2 of core materials . 40
Annex E (normative) Barrier performance of the envelope . 42
Annex F (normative) Determination of desiccant service life time . 44
Annex G (normative) Measurement of inner pressure . 46
Annex H (normative) Mounting and fixing procedure for reaction to fire tests . 53
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 58
Bibliography . 62

European foreword
This document (EN 17140:2020) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
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 April 2021, and conflicting national standards shall be
withdrawn at the latest by July 2022.
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 given to CEN by the European
Commission and the European Free Trade Association.
For relationship with (EU) Regulation 305/2011, see informative Annex ZA, which is an integral part of
this document.
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, Turkey and the
United Kingdom.
1 Scope
This document specifies characteristics of factory-made vacuum insulation panels (VIP) intended to be
used for the thermal insulation of buildings.
This document is applicable for all types of factory-made vacuum insulation panels (VIP), independent
of the core material (see 3.1.10) or type of envelope (see 3.1.11).
This document is applicable for factory-made vacuum insulation panels (VIP) with or without
desiccants (see 3.1.12) and with and without evacuation valve (3.1.14).
The products covered by this document can be used in roofs, walls, ceilings and floors.
This document specifies procedures for assessment and verification of constancy of performance
(AVCP) of characteristics of factory-made vacuum insulation panels (VIP).
This document does not cover products:
— intended to be used for the thermal insulation of building equipment and industrial installations;
— intended to be used for civil engineering works;
— intended to be used as perimeter or foundation;
— with a thermal resistance R lower than 0,5 m ⋅K/W;
D
— that contain getters (3.1.13);
— that have protective layers (3.1.9).
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 822:2013, Thermal insulating products for building applications — Determination of length and width
EN 823:2013, Thermal insulating products for building applications — Determination of thickness
EN 824:2013, Thermal insulating products for building applications — Determination of squareness
EN 825:2013, Thermal insulating products for building applications — Determination of flatness
EN 826:2013, Thermal insulating products for building applications — Determination of compression
behaviour
EN 1604:2013, Thermal insulating products for building applications — Determination of dimensional
stability under specified temperature and humidity conditions
EN 1605:2013, Thermal insulating products for building applications — Determination of deformation
under specified compressive load and temperature conditions
EN 1606:2013, Thermal insulating products for building applications — Determination of compressive
creep
EN 1607:2013, Thermal insulating products for building applications — Determination of tensile strength
perpendicular to faces
EN 12090:2013, Thermal insulating products for building applications — Determination of shear
behaviour
EN 12664:2001, 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 12667:2001, Thermal performance of building materials and products — Determination of thermal
resistance by means of guarded hot plate and heat flow meter methods — Products of high and medium
thermal resistance
EN 13238:2010, Reaction to fire tests for building products — Conditioning procedures and general rules
for selection of substrates
EN 13501-1:2018, Fire classification of construction products and building elements — Part 1:
Classification using data from reaction to fire tests
EN 13820:2003, Thermal insulating materials for building applications — Determination of organic
content
EN 13823:2020, Reaction to fire tests for building products — Building products excluding floorings
exposed to the thermal attack by a single burning item
EN 16516:2017+A1:2020, Construction products: Assessment of release of dangerous substances —
Determination of emissions into indoor air
EN 16733:2016, Reaction to fire tests for building products — Determination of a building product's
propensity to undergo continuous smouldering
EN ISO 1182:2020, Reaction to fire tests for products — Non-combustibility test (ISO 1182:2020)
EN ISO 1716:2018, Reaction to fire tests for products — Determination of the gross heat of combustion
(calorific value) (ISO 1716:2018)
EN ISO 10211:2017, Thermal bridges in building construction — Heat flows and surface temperatures —
Detailed calculations (ISO 10211:2017)
EN ISO 10456:2007, Building materials and products — Hygrothermal properties — Tabulated design
values and procedures for determining declared and design thermal values (ISO 10456:2007)
EN ISO 11925-2:2020, Reaction to fire tests — Ignitability of products subjected to direct impingement of
flame - Part 2: Single-flame source test (ISO 11925-2:2020)
ISO 16269-6:2014, Statistical interpretation of data — Part 6: Determination of statistical tolerance
intervals
As impacted by corrigendum EN ISO 10456:2007/AC:2009.
3 Terms and definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1.1
vacuum insulation panel
VIP
insulation product made of a sealed barrier envelope containing a core material with an open porosity
structure, where the gas pressure inside the sealed barrier envelope is lowered below atmospheric
pressure
3.1.2
centre of panel
COP
area of the VIP whose thermal performance is not affected by the edge effect
3.1.3
edge effect
form of thermal bridging along the edge due to the higher thermal conductivity of the outer envelope,
both through the material of the envelope itself and the sealed folded envelope, compared to the core
3.1.4
inner pressure
total gas pressure within the VIP, measured in mbar
3.1.5
pressure compensation method
method of testing inner pressure of a VIP using a laminate-lift-off technique with a vacuum chamber or
suction bell
Note 1 to entry: In some literature also called foil-lift-off technique.
3.1.6
vacuum chamber
device to remove air or other gases from a volume around a VIP to determine the inner pressure of a
VIP by the pressure compensation method
3.1.7
suction bell
device to remove air or other gases from a volume connected to a part of a VIP to determine the inner
pressure of a VIP by the pressure compensation method
3.1.8
pressure sensor
device to measure the inner pressure of a VIP
3.1.9
protective layer
functional surface material, e.g. paper, glass fibre textile or rubber, which is not considered as separate
thermal insulation layer to be added to the thermal resistance of the product, intended to improve the
handling of the product and protect it from damage
3.1.10
core material
insulation material with an open porosity structure constituting the main component inside the VIP
envelope
3.1.11
envelope
airtight and water-tight outer layer of the VIP securing the vacuum inside the VIP
3.1.12
desiccant
additive material different from the core material which intends to absorb or adsorb water vapour in
the sealed panel
3.1.13
getter
additive material different from the core material which intends to absorb or adsorb other gases than
water vapour in the sealed panel
3.1.14
evacuation valve
device to connect the VIP to a vacuum pump
3.2 Symbols and abbreviated terms
For the purposes of this document, the following symbols, units and abbreviated terms apply.
A surface area of the VIP m
A metering area of the GHP or HFM apparatus used for the m
m
measurement
b core width m
c
b working width m
w
CS(Y) compressive stress/strength(Y=yield) kPa
d thickness m
dambient thickness of the ventilated VIP m
d nominal thickness of the product m
N
f acceleration factor for dry air of the VIP envelope –
air
f acceleration factor for water vapour of the VIP envelope –
v
k factor related to the number of test results available –
l core length m
c
l working length m
w
l length of the joints within the metering area m
ψ
N number of test results –
3 2
P air permeability of the VIP envelope m Pa/ (m ⋅s)
air
P water intake rate of the VIP envelope kg/(m ⋅s)
v
p pressure inside the VIP Pa
air
p maximum value of the inner pressure measured at least Pa
lim
24 h after production
p water vapour pressure inside the VIP Pa
v
p initial value of the inner pressure Pa
p inner pressure of a VIP, where λ increases by 1/2 of the Pa
1/2
thermal conductivity of still air.
R R at centre of panel plus ageing m ⋅K/W
COP,90/90aged 90/90
R expressed thermal resistance including ageing, edge-effect m ⋅K/W
D
and rounding rules
R mean thermal resistance m ⋅K/W
mean
R one test result of thermal resistance m ⋅K/W
i
R 90 % fractile with a confidence level of 90 % for the m ⋅K/W
90/90
thermal resistance
S top surface area (length x width) of the VIP m
S deviation from squareness on width or length mm/m
b
S deviation from flatness mm
max
S nominal perimeter of the product m
N
s estimate of the standard deviation of the thermal m ⋅K/W
R
resistance
s estimate of the standard deviation of the thermal W/(m⋅K)
λ
conductivity
s estimate of the standard deviation of the initial thermal W/(m⋅K)
λi
conductivity within 90 days of production
T temperature K
t time s
t service life time of the desiccant a
Des
Χ water content inside the VIP mass-%
change of water content with time at 50°C 70 % RH mass-%/s
X´
t,50/70
X compressive creep mm
ct
X total thickness reduction mm
t
λ thermal conductivity W/(m⋅K)
λ thermal conductivity of a ventilated VIP at centre of the W/(m⋅K)
ambient
panel
λ thermal conductivity for centre of panel W/(m·K)
COP
λ (25years) average value of thermal conductivity over the first 25 W/(m⋅K)
COP,mean
years in use at centre of panel
λ , λ at centre of panel plus ageing W/(m⋅K)
COP 90/90,aged 90/90
λ expressed thermal conductivity including ageing, edge- W/(m⋅K)
D
effect and rounding rules
λ equivalent thermal conductivity including edge effects for W/(m·K)
eq ja
the specific joint assembly
λ mean value of thermal conductivity W/(m⋅K)
mean
λ one test result of thermal conductivity W/(m⋅K)
i
λ’ change of thermal conductivity with pressure W/(m⋅K⋅Pa)
p
λ’ change of thermal conductivity with time W/(m⋅K⋅s)
t
λ’ change of thermal conductivity with humidity W/(m⋅K)/mass-%
Χ
λ 90 % fractile with a confidence level of 90 % for the W/(m⋅K)
90/90
thermal conductivity
λ’ change of thermal conductivity with time at 23°C 50 % RH W/(m⋅K⋅a)
t, 23, 50
’ change of thermal conductivity with time at 50°C 70 % RH W/(m⋅K⋅a)
λ
t, 50, 70
λ(t) time-dependent thermal conductivity value W/(m⋅K)
λ(t) time dependent value of thermal conductivity at 23°C W/(m⋅K)
, 23, 50
50 % RH
λ* (t = 0) interpolated initial value of thermal conductivity W/(m∙K)
σ compressive stress kPa
c
σ compressive strength kPa
m
σ tensile strength perpendicular to faces kPa
mt
σ compressive stress at 10 % deformation kPa
τ shear strength kPa
Φ relative humidity inside the VIP %
Φ’ change of relative humidity inside the VIP as function of (rel. humidity-
X
water content %)/(mass-%)
Ψ linear thermal transmittance W/(m∙K)
ψ linear thermal transmittance for the joints in the metering W/(m·K)
m
area
Abbreviated terms used in this document:
VIP vacuum insulation panel
COP centre of panel
AVCP assessment and verification of constancy of performance (previously named attestation of
conformity)
DoP declaration of performance
FPC factory production control
STP standard condition for temperature and pressure
RtF reaction to fire
ThIB thermal insulation for buildings
VOC volatile organic compounds
4 Characteristics
4.1 Reaction to fire
4.1.1 Determination
Reaction to fire classification shall be determined according to 5.2.1.
4.1.2 Expression
The reaction to fire shall be classified and expressed according to EN 13501-1:2018, Clause 11.
EXAMPLE Class E.
4.2 Propensity to undergo continuous smouldering
4.2.1 Determination
Propensity to undergo continuous smouldering of the core material shall be determined according to
5.2.2.
4.2.2 Evaluation and expression
Propensity to undergo continuous smouldering shall be expressed according to EN 16733:2016, Clause
11. If the test according to EN 16733:2016, Clause 11 has been passed, the result shall be expressed as
follows: “the product does not show propensity for continuous smouldering combustion”. If the test
according to EN 16733:2016, Clause 11 has been failed, the result shall be expressed as follows: “the
product shows propensity for continuous smouldering combustion”. If the assessment was not possible
according to EN 16733:2016, Clause 11, the result shall be expressed as follows: “assessment of the
propensity for continuous smouldering combustion is not possible”.
If a designation code is given, the following abbreviations shall be used:
— the product does not show propensity for continuous smouldering combustion: NoS
— the product shows propensity for continuous smouldering combustion: S
— the assessment of the propensity for continuous smouldering combustion is not possible: ANP.
EXAMPLE NoS.
4.3 Release of VOCs
4.3.1 Determination
The release of VOCs into indoor air shall be determined according to 5.2.3.
4.3.2 Expression
The release of VOCs into indoor air shall be expressed as values in accordance with
EN 16516:2017+A1:2020, 10.6.
4.4 Compressive strength
4.4.1 Determination
The compressive strength shall be determined according to 5.2.4.
4.4.2 Evaluation and expression
The compressive strength shall be expressed as a designation code CS(Y)i or CS(10)i, depending on the
result of the testing of 5.2.4. The test result i shall be rounded downwards in steps of 10 kPa.
EXAMPLE 1 CS(Y)120.
EXAMPLE 2 CS(10)120.
4.5 Tensile/flexural strength
4.5.1 Tensile strength perpendicular to faces
4.5.1.1 Determination
The tensile strength perpendicular to faces, σ , shall be determined according to 5.2.5.1.
mt
4.5.1.2 Expression
The tensile strength perpendicular to faces, σ , shall be expressed as a designation code TRi. The value i
mt
of the tensile strength shall be rounded downwards in steps of 10 kPa.
EXAMPLE TR80.
4.5.2 Shear strength
4.5.2.1 Determination
Shear strength, τ, shall be determined according to 5.2.5.2.
4.5.2.2 Expression
The shear strength shall be expressed as a designation code SSi. The value i of the shear strength shall
be rounded downwards in steps of 50 kPa.
EXAMPLE SS150.
4.6 Thermal resistance
4.6.1 Thermal resistance of the VIP
4.6.1.1 Determination
The thermal resistance shall be determined according to 5.2.6.1.
4.6.1.2 Expression
The thermal resistance shall be rounded downwards to the nearest 0,05 m ⋅K/W and be expressed as a
value in m ⋅K/W. It shall be expressed together with thermal conductivity rounded upwards in steps of
0,000 5 W/(m⋅K) and expressed as a value in W/(m⋅K). It shall be expressed together with the thickness
given as a value in mm.
EXAMPLE RD= 4,60 m ⋅K/W (λD= 0,0065 W/(m⋅K), d= 30 mm).
4.6.2 Thermal resistance of the ventilated VIP under ambient pressure due to damage
4.6.2.1 Determination
The thermal resistance of the ventilated VIP under ambient pressure due to damage shall be
determined according to 5.2.6.2.
4.6.2.2 Expression
The thermal resistance of the ventilated VIP under ambient pressure due to damage shall be rounded
2 2
downwards to the nearest 0,05 m ⋅K/W and be expressed as a value in m ⋅K/W. It shall be expressed
together with the thickness given as a value in mm.
EXAMPLE R = 1,00 m ⋅K/W (d = 20 mm).
ambient, eff ambient
4.7 Durability aspects
4.7.1 Dimensional stability under specified temperature and humidity conditions
4.7.1.1 Determination
Dimensional stability under specified temperature or under specified temperature and humidity
conditions shall be determined according to 5.2.7.1.
4.7.1.2 Expression
Dimensional stability under specified temperature or under specified temperature and humidity
conditions shall be expressed as a code in the following way: If the relative changes in core length and
core width do not exceed 1 % and the relative reduction in thickness does not exceed 3 %, the code
shall be DS. Otherwise, the code shall be NoDS .
EXAMPLE DS.
4.7.2 Dimensional stability under specified compressive load and temperature conditions
4.7.2.1 Determination
Dimensional stability under specified compressive load and temperature conditions shall be
determined according to 5.2.7.2.
4.7.2.2 Expression
Dimensional stability under specified compressive load and temperature conditions shall be expressed
as a code in the following way: If the relative changes in thickness do not exceed 3 %, the code shall be
DSC. Otherwise, the code shall be NoDSC.
EXAMPLE DSC.
4.7.3 Compressive creep
4.7.3.1 Determination
The compressive creep shall be determined according to 5.2.7.3.
4.7.3.2 Expression
Compressive creep, X , shall be expressed as a designation code CC(i /i /y)σ together with the total
ct 1 2 c
thickness reduction, X . The value of the total thickness reduction i and the value of compressive creep
t 1
i after y years shall be given in steps of 0,1 mm and at the expressed stress σ .
2 c
EXAMPLE CC(2,5/2/10)50.
5 Assessment methods
5.1 General
5.1.1 Sampling
Unlike other insulating materials, VIP cannot be cut to the sizes required by the test standards. They
shall be produced in the sizes stated in Table 1.
5.1.2 Conditioning
Conditioning of the test specimens shall be at least 24 h at (23 ± 5) °C unless otherwise specified in the
test standard. In case of dispute, the test specimens shall be stored at (23 ± 2) °C and (50 ± 5) % relative
humidity for at least 24 h prior to testing.
Table 1 — Characteristics and test specimens
Clause Test specimen
length and width
No Title
5.2.1 Reaction to fire See Annex H
Propensity to undergo 800 x 300
5.2.2
continuous smouldering
5.2.3 Release of VOCs Full-size
Compressive stress or ≥ 200
5.2.4
compressive strength
Tensile strength ≥ 200
5.2.5
perpendicular to faces
5.2.5 Shear strength 200 x 100
Thermal resistance and ≥ 300
5.2.6
thermal conductivity
Inner pressure at least ≥ 300
5.2.6
24 h after production
5.2.6 Length and width Full-size
Squareness on length Full-size
5.2.6
and width
5.2.6 Flatness Full-size
5.2.6 Thickness Full-size
Dimensional stability ≥ 200
5.2.7 according to specified
temperature conditions
Deformation under ≥ 200
specified compressive
5.2.7
load and temperature
conditions
5.2.7 Compressive creep ≥ 200
5.2 Test methods
5.2.1 Reaction to fire
Reaction to fire classification shall be determined using the test standards referred to within
EN 13501-1:2018, Clause 8 for the claimed class. For specific tests, the mounting and fixing procedure
shall be as given in Annex H.
5.2.2 Propensity to undergo continuous smouldering
The propensity to undergo continuous smouldering of the VIP shall be tested on the core material. The
material shall be tested according to EN 16733:2016. The following conditions and parameters shall be
considered within the tests:
— organic content (in percentage per mass), to be determined by tests according to EN 13820:2003;
— absolute organic content expressed in [kg/m ];
— density according to EN 1602;
— thickness to be determined by test according to EN 823:2013;
The tests shall be done without consideration of the intended end-use conditions. If the paragraph 6.2.5
of EN 16733:2016 applies, a permanent contact between the pieces shall be assured.
The results of tests considering the aforementioned parameters in full are also valid for products
— having tested absolute organic content in [kg/m ] identical or lower, when the organic content in
[%] is the same or lower as tested;
— with equal or lower density;
— with lower thickness and also with higher thickness when 100 mm thick specimens were tested;
— with any envelopes;
— for any end-use conditions.
5.2.3 Release of VOCs
The release of VOCs into indoor air shall be tested according to EN 16516:2017+A1:2020, 8.2.
NOTE An informative database covering European and national provisions on dangerous substances is
available at the Construction web site on EUROPA accessed through: https://ec.europa.eu/growth/tools-
databases/cp-ds.
5.2.4 Compressive strength
In accordance with EN 826:2013 either the compressive stress at 10 % or the compressive strength
shall be determined.
In order to even out seams, flaps and uneven surfaces of the VIPs and to enhance comparability of
different products on the market, gypsum coating shall be used to enhance the coupling of the
specimens to the testing machine – e.g. in a similar way as the procedure given for cellular glass in
EN 826:2013, subclause A.3.2.6 but using gypsum instead of bitumen.
5.2.5 Tensile/flexural strength
5.2.5.1 Tensile strength perpendicular to faces
, shall be determined in accordance with EN 1607:2013.
Tensile strength perpendicular to faces, σmt
5.2.5.2 Shear strength
Shear strength, τ, shall be determined according to EN 12090:2013.
5.2.6 Thermal resistance
5.2.6.1 Thermal resistance of the VIP
5.2.6.1.1 General
For the determination of the thermal resistance the following characteristics are needed:
— Thermal conductivity (5.2.6.1.2)
— Thickness (5.2.6.1.3)
— Length, width, squareness, flatness (5.2.6.1.4)
5.2.6.1.2 Thermal conductivity
Thermal conductivity shall be based upon measurements carried out at centre of panel in accordance
with EN 12667:2001.
The measurement shall be carried out directly on the VIP, or, for uneven surfaces, to avoid air gaps, the
measurement shall be carried out with the VIP positioned between two flexible contact sheets
according to EN 12664:2001, 6.3.2.2.
For VIP products the thermal conductivity including ageing shall be determined in accordance with
Annex A including ageing and thermal bridge effect according to Annex C and shall be determined
according to the following:
— The reference mean temperature for thermal conductivity shall be 10 °C.
— The measured values shall be expressed with two significant figures.
— λ is obtained from testing thermal conductivity in the centre of panels shortly after production.
90/90
It shall be representing at least 90 % of the production, determined with a confidence level of 90 %
in accordance with EN ISO 10456:2007 .
— The statistical value of thermal conductivity, λ , shall be rounded upwards to the nearest
90/90
0,0001 W/(m⋅K).
— The thermal conductivity, λ , shall be derived from λ by adding ageing and edge effect
D 90/90
according to Annex C.
— The thermal conductivity λ is achieved including ageing and edge effect according to Annex C and
D
shall be rounded upwards in steps of 0,000 5 W/(m⋅K).
— Different methods to include the aging apply for VIP with or without desiccants. Both methods are
described in Annex C.
5.2.6.1.3 Thickness
Thickness of the VIP, d, shall be determined in accordance with EN 823:2013. The seams and folded
edges or ends shall not be included in the measurement (see Figure 1).
The VIP should be placed even on the measuring table before measurements are taken.
No test result shall deviate from the nominal thickness, d , by more than the tolerances given in Table 2.
N
Table 2 — Tolerances for thickness
Thickness Tolerance
mm mm
< 15 +2/-0
15 ≤ d < 40 +2/-1
40 ≤ d < 50 ±2
≥ 50 +3/-2
Key
1 folded edges on the short side lw working length
2 folded edges on the long side b core width
c
d thickness bw working width
lc core length
Figure 1 — Dimensions of a Vacuum Insulation Panel
5.2.6.1.4 Length, width, squareness, flatness
The working length, l , and the working width, b , (see Figure 1) shall be determined in a similar way as
w w
the procedure given in EN 822:2013, but taking the measurement at the highest point of the folded
edge.
The core length, l , and the core width, b , (see Figure 1) shall be determined in accordance with
c c
EN 822:2013.
The deviation from squareness of the length and width, S , shall be determined in a similar way as the
b
procedure given in EN 824:2013, but both sides of the panel shall be measured and the higher value
shall be expressed.
The deviation from flatness, S , shall be measured in a similar way as the procedure given in
max
EN 825:2013, with the measuring points, when possible, excluding the welding or folding areas of the
envelopes of the products.
No test result shall deviate from the nominal values by exceeding the tolerances given in Table 3.
Table 3 — Tolerances of length, width, squareness and flatness
Tolerances
Length or width Squareness on length Flatness
and width
< 500 mm 500 ≤ (l, b) ≤ 1 000 > 1 000
S S
b max
mm mm/m mm
5 6
8 10 12
(e.g. +2 / −6) (e.g. ± 5) (e.g. +4 / −8)
or or or
(e.g. +0 / −8) (e.g. +4 / −6) (e.g. +10 / −2)
5.2.6.1.5 Inner pressure
The inner pressure of the panel shall be measured minimum 24 h after production according to Annex G
and shall be lower than the limit value plim. Different methods apply for VIP with or without evacuation
valve. Both methods are described in Annex G.
5.2.6.1.6 Report of thermal resistance
The thermal resistance, R , is derived by the thermal conductivity, λ , and the nominal thickness, d , via
D D N
the equation: R = d / λ . In addition to the thermal resistance the test report shall contain the thermal
D N D
conductivity, nominal thickness, length, width, squareness, flatness and inner pressure.
5.2.6.2 Thermal resistance of the ventilated VIP under ambient pressure due to damage
The thermal resistance of a ventilated VIP shall be recorded upon measurements in accordance with
EN 12667:2001. The value of ambient pressure should be recorded during the measurement. To this
extent the envelope of the VIP shall be opened at the edge. The length or diameter of the opening shall
be between 10 mm and 20 mm. For VIP with evacuation valves the valve can be opened until ambient
pressure is reached.
The thickness of the ventilated VIP might differ from the thickness of the evacuated VIP. Therefore, the
thickness of the ventilated VIP d should be measured according to EN 823:2013.
ambient
The edge effect measured or modelled with non-ventilated VIP according to C.5 should be used to
calculate the thermal conductivity and thermal resistance of the ventilated VIP according to
Formulae (1) and (2).
(1)
λ λψ+⋅ d ⋅ p / S
( )
ambient,  eff ambient ambient
Rd= /λ (2)
ambient,,  eff ambient ambient  eff
5.2.7 Durability aspects
5.2.7.1 Dimensional stability under specified temperature and humidity conditions
Dimensional stability under specified temperature or under specified temperature and humidity
conditions shall be determined in accordance with EN 1604:2013. The test shall be carried out at 70 °C
and 90 % relative humidity.
The measuring points as stated in EN 1604:2013 shall exclude the welding or folding areas of the
envelopes of the products.
The test specimens shall be square section prisms with a side length of (200, 250 or 300 ± 1) mm
depending on the feasible productions.
5.2.7.2 Dimensional stability under specified compressive load and temperature conditions
Dimensional stability under specified compressive load and temperature conditions shall be
determined in accordance with EN 1605:2013. The conditioning shall be carried out at 40 kPa and
70 °C.
5.2.7.3 Compressive creep
Compressive creep, X , shall be determined in accordance with EN 1606:2013 after at least one
ct
hundred and twenty two days of testing (see Table 4) at a compressive stress, σ , given in steps of at
c
least 1 kPa. The results shall be extrapolated thirty times, corresponding to ten years.
NOTE Testing times: According to EN 1606:2013 the procedure at 10, 25 and 50 years respectively requires
the following testing times:
Table 4 — Extrapolation and minimum testing time
Extrapolation time Minimum testing time
years days
10 122
25 304
50 608
=
6 Assessment and verification of constancy of performance - AVCP
6.1 General
The technical details necessary for the implementation of the system of assessment and verification of
constancy of performance comprise provisions with regards to:
— the assessment of the performance of the construction product, which may be carried out on the
basis of testing (including sampling) and calculation; and
— the applicable factory production control.
6.2 Assessment of performance
6.2.1 General
When the intention is to declare any performance related to characteristics included in Annex ZA of this
document this shall be carried out on the basis of testing (including sampling) and calculation in
accordance with Clause 'Characteristics'.
Assessment previously performed in accordance with the provisions of this document, may be
considered, provided that this assessment was performed to the same or a more rigorous assessment
method, under the same AVCP system on the same product or products of similar design, construction
and functionality, such that the results are applicable to the product in question.
For the purposes of assessment, the products may be grouped into families, where it is considered that
the results for one or more characteristics from any one product within the family are representative
for that same characteristic for all products within that same family.
NOTE 1 Products may be grouped into different families for different characteristics.
In addition, the determination of the product performance shall be
— carried out for all characteristics included in the standard for which it is intended to declare the
performance:
— on first application of this document, or
— at the beginning of the production of a new or modified factory-made vacuum insulation panels
(VIP), unless a member of the same product family; or
— at the beginning of a new or modified method of production ,where the modification may affect
the stated properties;
— repeated for the characteristic(s) in question, whenever a change occurs in the factory-made
vacuum insulation panels (VIP) design, in the raw material(s) or in the supplier of the components,
and/or in the method of production (subject to the definition of a family), which may affect
significantly the performance in relation to one or more of the characteristics;
Where kit components are used whose performance in relation to their characteristics has already been
determined on the basis of assessment methods of other harmonized technical specifications and those
components bear CE marking in accordance with those harmonized technical specifications, these
performances do not need to be re-assessed, if the intended use and the assessment methods of this
document correspond to previously used. The specifications of these components shall be documented.
6.2.2 Test samples, testing and assessment criteria
The samples factory-made vacuum insulation panels (VIP) to be tested/assessed shall be in accordance
with Table 5.
Table 5 — Number of samples to be tested and assessment criteria
Characteristic Clause Assessment No. of Assessment criteria
method samples
Reaction to fire 4.1 5.2.1 1 4.1
Propensity to undergo
continuous 4.2 5.2.2 1 4.2
smouldering
Release of VOCs 4.3 5.2.3 1 4.3
Compressive strength 4.4 5.2.4 4 4.4
Tensile strength
4.5.1 5.2.5.1 4 4.5.1
perpendicular to faces
Shear strength 4.5.2 5.2.5.2 4 4.5.2
Thermal resistance of 5.2.6.1
4.6.1 4 4.6.1
the VIP
Thermal resistance of
the ventilated VIP
under ambient 4.6.2 5.2.6.2 4 4.6.2
pressure due to
damage
Dimensional stability
under specified
4.7.1 5.2.7.1 4 4.7.1
temperature and
humidity conditions
Dimensional stability
under specified
compressive load and 4.7.2 5.2.7.2 4 4.7.2
temperature
conditions
Compressive creep 4.7.3 5.2.7.3 4 4.7.3
6.3 Verification of constancy of performance
6.3.1 Factory production control (FPC)
6.3.1.1 General
An FPC system shall be established, documented, operated and maintained to ensure that the products
placed on the market comply with the declared performance in relation to the essential characteristics.
The FPC system shall consist of procedures, regular inspections and tests and/or assessments and the
use of the results to control raw and other incoming materials or components, equipment, the
production process and the product.
All the elements and provisions shall be documented in a systematic manner in the form of written
policies and procedures.
The responsibility, authority and the relationship between personnel that manages, performs or verifies
work affecting constancy of the performance of the product, shall be defined.
The qualification and competence (e.g. on the basis of education, training, skills, or experience) of
personnel performing tasks affecting the assessment and verification of constancy of performance of
the product shall be recorded.
Documents defining the factory production control system shall be drawn up and kept up-to-date.
Documentation and procedures should be appropriate to the product and production process. The FPC
system should achieve an appropriate l
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