FprEN 14963-1

SLOVENSKI STANDARD
01-oktober-2020
Predizdelani dodatki za prekrivanje streh - 1. del: Zvezni plastični svetlobniki -
Specifikacija proizvoda in preskusne metode
Prefabricated accessories for roofing - Part 1: Continuous plastic rooflights - Product
specification and test methods
Dachdeckungen - Teil 1: Dachlichtbänder aus Kunststoff - Klassifizierung, Leistungen
und Prüfverfahren
Eléments de couverture - Partie 1: Lanterneaux continus en matière plastique -
Classification, spécifications et méthodes d'essais
Ta slovenski standard je istoveten z: prEN 14963-1
ICS:
83.140.99 Drugi izdelki iz gume in Other rubber and plastics
polimernih materialov products
91.060.20 Strehe Roofs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 14963-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 83.140.99; 91.060.20 Will supersede EN 14963:2006
English Version
Prefabricated accessories for roofing - Part 1: Continuous
plastic rooflights - Product specification and test methods
Eléments de couverture - Partie 1: Lanterneaux Dachdeckungen - Teil 1: Dachlichtbänder aus
continus en matière plastique - Classification, Kunststoff - Klassifizierung, Leistungen und
spécifications et méthodes d'essais Prüfverfahren
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 128.
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, 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: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14963-1:2020 E
worldwide for CEN national Members.

prEN 14963-1:2020 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 10
3 Terms, definitions, symbols, units and abbreviated terms . 11
3.1 Terms and definitions . 11
3.2 Symbols and abbreviations . 13
4 Product characteristics . 16
4.1 General. 16
4.2 Radiation properties . 16
4.3 Durability of radiation properties . 17
4.4 Watertightness . 17
4.5 Mechanical resistance . 18
4.6 Durability of mechanical resistance . 18
4.7 Impact resistance . 19
4.8 Reaction to fire. 19
4.9 Resistance to fire . 20
4.10 External fire performance . 20
4.11 Air permeability . 20
4.12 Thermal resistance . 20
4.13 Direct airborne sound insulation . 21
5 Testing, assessment and sampling methods . 21
5.1 General. 21
5.2 Radiation properties . 21
5.3 Durability of radiation properties . 22
5.4 Watertightness . 24
5.5 Mechanical resistance . 26
5.6 Durability of mechanical resistance . 30
5.7 Impact resistance . 31
5.8 Reaction to fire. 35
5.9 Resistance to fire . 36
5.10 External fire performance . 36
5.11 Air permeability . 36
5.12 Thermal resistance . 38
5.13 Direct airborne sound insulation . 38
6 Assessment and verification of constancy of performance – AVCP . 38
6.1 General. 38
6.2 Assessment of performance . 38
6.3 Verification of constancy of performance . 40
Annex A (informative) Indicative list of provisions for a proper application, use and
maintenance . 43
Annex B (normative) Alternative test method for determination of light transmittance τ . 45
D65
Annex C (normative) Test method for air permeability . 47

prEN 14963-1:2020 (E)
Annex D (normative) Determination of thermal transmittance of continuous plastic rooflight 51
Annex E (normative) Conditions for Reaction to fire testing . 73
Annex F (normative) Relationship between characteristics, families and test specimens . 76
Annex ZA (informative) Relationship of this European Standard with Regulation (EU)
No.305/2011 . 78
Bibliography . 84

prEN 14963-1:2020 (E)
European foreword
This document (prEN 14963-1:2020) has been prepared by Technical Committee CEN/TC 128 “Roof
covering products for discontinuous laying and products for wall cladding”, the secretariat of which is
held by NBN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14963:2006.
Significant technical changes between this document and the previous edition are as follows:
— Editorial revision;
— Number, title and scope revised;
— Normative references updated;
— Radiation properties updated;
— Watertightness of rooflight sheets (translucent parts) deleted;
— Air permeability updated and air permeability of rooflight sheets (translucent parts) deleted;
— Thermal resistance updated;
— Clause AVCP updated;
— Annex ZA updated.
This document has been prepared under standardization request given to CEN and CENELEC by the
European Commission and the European Free Trade Association.
For relationship with Regulation (EU) 305/2011, see informative Annex ZA, which is an integral part of
this document.
EN 14963 consists of 2 parts:
— Part 1: Continuous plastic rooflights
— Part 2: Continuous glass rooflights
prEN 14963-1:2020 (E)
Introduction
This document describes characteristics and assessment procedures for continuous rooflights consisting
of light transmitting sheets made of plastic materials.
This document belongs to a series of standards for rooflights which is consisting of prEN 1873-1 and
prEN 1873-2 for individual rooflights, prEN 1873-3 for roof hatches and prEN 14963-1 and
prEN 14963-2 for continuous rooflights.
prEN 14963-1:2020 (E)
1 Scope
This document specifies characteristics for continuous plastic rooflights. These rooflights have
translucent parts made of plastic materials (e.g. GF-UP, PC, PMMA, PVC) with and without filling material,
with or without support elements, which serve the primary purpose of introducing daylight.
This document applies to continuous plastic rooflights with upstands made of e.g. GF-UP, PVC, steel,
aluminium, wood or concrete and to continuous plastic rooflights without upstand, intended for use on
upstands. These continuous plastic rooflights are intended for installation in flat and slightly inclined
roofs as prefabricated building elements.
This document applies to continuous plastic rooflights when a single manufacturer provides all elements
of the rooflight for assembly on the roof, which are bought in a single purchase.
This document deals with continuous plastic rooflights manufactured as follows:
a) with support elements:
— symmetrical, angled, curved or flat (see Figures 1 and 4);
— constructed with support elements parallel to the span and with a rectangular ground plan;
b) without support elements:
— symmetrical, angled or curved (see Figures 2 and 5) with an angle α not more than 45°
(measured to the horizontal at the line of fixing, see Figure 3).
This document applies to continuous plastic rooflights, including barrel vault rooflights, with a
rectangular ground plan of plastic translucent part installed in roofs, with a minimum distance of b/3 (b
= effective span of rooflights, corresponding to the light opening) between each other. The upstands may
be self-supporting or non-self-supporting.
This document does not apply to:
— “Individual plastic rooflights” according to prEN 1873-1 and “Individual glass rooflights” according
to prEN 1873-2;
— “Roof hatches” according to prEN 1873-3;
— “Continuous glass rooflights” according to prEN 14963-2;
— “Roof windows” according to EN 14351-1.
This document does not include calculation with regard to works, design requirements and installation
techniques.
The possible additional functions of day to day ventilation, smoke and heat exhaust ventilation e.g. in case
of fire in accordance to EN 12101-2, roof access, and/or slinging point e.g. in accordance to EN 795 are
outside the scope of this document.
NOTE An indicative list of provisions for a proper application, use and maintenance of continuous plastic
rooflights is presented in Annex A.
prEN 14963-1:2020 (E)
Figure 1 — Examples for symmetrical, angled, curved and flat continuous plastic rooflights with
support elements
Figure 2 — Examples for symmetrical, angled and curved continuous plastic rooflights without
support elements
Key
α inclination to the horizontal

Figure 3 — Examples for symmetrical, angled and curved continuous plastic rooflight without
support elements (measured to the horizontal at the line of fixing)
prEN 14963-1:2020 (E)
Key
1 screw
2 junction part
3 sealing
4 solid or multi-walled sheet
5 support element
6 junction part at the gable end
7 edge profile
8 upstand
Figure 4 — Example for continuous plastic rooflights with support elements, rectangular ground
plan and sections
prEN 14963-1:2020 (E)
Key
1 screw 5 upstand
2 gable end 6 structure of the building
3 sealing
4 solid or multiwall sheet
Figure 5 — Examples of rectangular ground plan and sections of continuous plastic rooflights
without support elements
prEN 14963-1:2020 (E)
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 410:2011, Glass in building - Determination of luminous and solar characteristics of glazing
EN 596:1995, Timber structures - Test methods - Soft body impact test of timber framed walls
EN 673:2011, Glass in building - Determination of thermal transmittance (U value) - Calculation method
EN 674:2011, Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate
method
EN 12412-2:2003, Thermal performance of windows, doors and shutters - Determination of thermal
transmittance by hot box method - Part 2: Frames
EN 13501-1:2018, Fire classification of construction products and building elements - Part 1: Classification
using data from reaction to fire tests
EN 13501-2:2016, Fire classification of construction products and building elements - Part 2: Classification
using data from fire resistance tests, excluding ventilation services
EN 13501-5:2016, Fire classification of construction products and building elements - Part 5: Classification
using data from external fire exposure to roofs tests
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 16153:2013+A1:2015, Light transmitting flat multiwall polycarbonate (PC) sheets for internal and
external use in roofs, walls and ceilings - Requirements and test methods
EN 16240:2013, Light transmitting flat solid polycarbonate (PC) sheets for internal and external use in
roofs, walls and ceilings - Requirements and test methods
CEN/TS 1187:2012, Test methods for external fire exposure to roofs
EN ISO 178:2019, Plastics - Determination of flexural properties (ISO 178:2019)
EN ISO 527-1:2019, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-
1:2019)
EN ISO 527-2:2012, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and
extrusion plastics (ISO 527-2:2012)
EN ISO 1182:2010, Reaction to fire tests for products - Non-combustibility test (ISO 1182:2010)
EN ISO 1716:2018, Reaction to fire tests for products - Determination of the gross heat of combustion
(calorific value) (ISO 1716:2018)
EN ISO 4892-1:2016, Plastics - Methods of exposure to laboratory light sources - Part 1: General guidance
(ISO 4892-1:2016)
EN ISO 4892-2:2013, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps
(ISO 4892-2:2013)
prEN 14963-1:2020 (E)
EN ISO 6946:2017, Building components and building elements - Thermal resistance and thermal
transmittance - Calculation methods (ISO 6946:2017)
EN ISO 10077-2:2017, Thermal performance of windows, doors and shutters - Calculation of thermal
transmittance - Part 2: Numerical method for frames (ISO 10077-2:2017)
EN ISO 10140-1:2016, Acoustics - Laboratory measurement of sound insulation of building elements - Part
1: Application rules for specific products (ISO 10140-1:2016)
EN ISO 10140-2:2010, Acoustics - Laboratory measurement of sound insulation of building elements - Part
2: Measurement of airborne sound insulation (ISO 10140-2:2010)
EN ISO 10140-4:2010, Acoustics - Laboratory measurement of sound insulation of building elements - Part
4: Measurement procedures and requirements (ISO 10140-4:2010)
1)
EN ISO 10140-5:2010 , Acoustics - Laboratory measurement of sound insulation of building elements -
Part 5: Requirements for test facilities and equipment (ISO 10140-5:2010)
EN ISO 10211:2017, Thermal bridges in building construction - Heat flows and surface temperatures -
Detailed calculations (ISO 10211:2017)
EN ISO/CIE 11664-1:2019, Colorimetry - Part 1: CIE standard colorimetric observers (ISO/CIE 11664-
1:2019)
EN ISO 11664-2:2011, Colorimetry - Part 2: CIE standard illuminants (ISO 11664-2:2007)
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)
EN ISO 12017:1996, Plastics - Poly(methyl methacrylate) double- and triple-skin sheets - Test methods (ISO
12017:1995)
EN ISO 12567-2:2005, Thermal performance of windows and doors - Determination of thermal
transmittance by hot box method - Part 2: Roof windows and other projecting windows (ISO 12567-2:2005)
2)
EN ISO 14125:1998 , Fibre-reinforced plastics composites — Determination of flexural properties (ISO
14125:1998)
3 Terms, 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/

1) As impacted by EN ISO 10140-5:2010/A1:2014.
2) As impacted by EN ISO 14125:1998/AC:2002 and EN ISO 14125:1998/A1:2011.
prEN 14963-1:2020 (E)
3.1.1
continuous plastic rooflight without upstand
building product used to introduce daylight consisting of one or several plastic rooflight elements and
gable ends, if applicable, and is intended for the installation on an upstand
3.1.2
continuous plastic rooflight with upstand
building product used to introduce daylight consisting of one or several plastic rooflight elements, gable
ends, if applicable, and upstand
3.1.3
plastic rooflight element
component of a continuous plastic rooflight consisting of one or several translucent parts with or without
support elements
3.1.4
support element
element which consists of single or several profiles on which the translucent parts are fitted, and which
transmits the applied loads to the upstand
3.1.5
gable end
end of a continuous rooflight
Note 1 to entry: Gable end can be assembled vertical, curved or pitched.
3.1.6
upstand
element which is single- or multi-walled or composite with vertical and/or pitched walls; with or without
thermal insulation and having the two-fold purpose of providing an area for the fixture of plastic rooflight
elements and gable ends if applicable and for connection to the substructure, the roof covering or the roof
sealing. The upstand transmits the loads acting upon the plastic rooflight elements and gable ends if
applicable into the substructure.
Note 1 to entry: Non-self-supporting upstands shall be continuously supported by the roof substructure.
3.1.7
daylight size
internal clear opening of the upstand
3.1.8
openable part
unit integrated into a continuous plastic rooflight which enables its opening for ventilation purposes
3.1.9
accessories
connections, opening and locking devices and seals for the assembly of the elements according to 3.1.1 to
3.1.6, 3.1.8 and 3.1.8 to 3.1.11
3.1.10
filling material
any material, or combinations thereof, in any physical state, which is filled into all or some of the hollow
spaces of the translucent part as defined in 3.1.9 to modify certain performances
prEN 14963-1:2020 (E)
3.1.11
translucent part
consists of at least an outside plastic skin which ensures water run off by form or orientation and may
also include additional translucent part(s)
Note 1 to entry: The additional skins can be profiled to follow or be integrated with the outer skin or be an
additional flat skin.
Note 2 to entry: Translucent part includes transparent part as well.
3.1.12
opaque panel
composite structure made up of two major elements, the skin and the core. Panel skins are the outer and
inner layers and are constructed from of a variety of materials, wood, metal and plastics are commonly
used. The core materials are often composed of wood, foam, or other types of thermal insulation material
or various types of structural honeycomb. The core gives structure to the sandwich, and the skins protect
the core.
Note 1 to entry: Panels with non-combustible skins are typically used to isolate flammable sections of the
continuous plastic rooflight. The thickness of the panels at their perimeter usually matches the thickness of the
transparent parts of the continuous rooflight to facilitate the connection of both parts at the joints. For aesthetic
reasons the panels may often have the same module size as the transparent parts
3.1.13
edge profile
any additional element (e.g. frame and/or profile) used to assemble the plastic rooflight on the upstand
3.1.14
junction part
any additional element (e.g. frame and/or profile) used to assemble the plastic rooflight elements
Note 1 to entry: Usually junction parts are also support elements.
3.2 Symbols and abbreviations
A Area of the outer exposed surface of the edge profiles, in m
e
A Area of the outer exposed surface of the gable ends, in m
ge
A Area of the outer exposed surface of the junction parts, in m
j
A Total area of longitudinal junction parts, in m
j,b
A Area of junction parts at gable ends, in m
j,r
a Width of translucent part (standard sheet), measured between two junction parts, in m
p
a Width of translucent part (marginal sheet) measured between the longitudinal limit of the
r
daylight size and the first junction part, in m
A Area of the surface of the rooflight without upstand, in m
r
A Area of the surface of the rooflight with upstand, in m
rc
A Area of the outer exposed surface of the translucent parts, in m
t
A Area of translucent parts (standard sheet), in m
tb
prEN 14963-1:2020 (E)
A Area of the horizontal projection of the clear opening of the translucent part of continuous
t,flat
rooflight, in m
A Area of the translucent part of the gable end, in m
t,ge
A Area of translucent parts (marginal sheet), in m
tr
A Area of the outer exposed surface of the upstand, in m
up
b Width of longitudinal junction part, in m
a
b Horizontal width of junction part of the gable end, in m
r,h
b Vertical width of junction part of the gable end, in m
r,v
e Width of the edge profile, in m
e
e Conventional width of the edge profile in longitudinal direction, in m
e,c
e Conventional height of the edge profile in longitudinal direction, in m
e,g
e Horizontal distance between the upper outside border of the insulation and the clear
e,h
opening of the translucent part, in m
e Vertical distance between the upper level of the translucent part and the upper level of the
e,v
upstand, in m
e Width of the edge profile in transversal direction, in m
es
e Conventional width of the edge profile in transversal direction, in m
es,h
e Conventional height of the edge profile in transversal direction, in m
es,v
e Width of the junction part, in m
j.h
e Width of the edge profile, in longitudinal direction, in m
l
e Height of the upstand, in m
up
GF-UP Glass-fibre reinforced unsaturated polyester resin – type of plastic material
h Horizontal envelope boundary
k Factor to take into account the shape of the translucent part
l Arc length of a translucent part, in m
c
l Upper outer length of the edge profiles in longitudinal direction, in m
e
l Upper outer length of the edge profiles at the gable end, in m
es
l Length of the transition zone between translucent parts and upstand, in m
et
l Length of the transition zone between translucent part and junction part, in m
j
l Length of the daylight size, in m
o
l Length of the transition zone between translucent part and edge profile, in m
t
n Number of junction parts
b.p
PC Polycarbonate – type of plastic material
prEN 14963-1:2020 (E)
P Perimeter of the edge profile, in m
e
PMMA Poly(methyl methacrylate) – type of plastic material
P Perimeter of the translucent part, measured on the daylight size, in m
t
P Reference perimeter of the upstand, in m
up
P Upper outer perimeter of the upstand, in m
up,u
P Lower outer perimeter of the upstand, in m
up,l
PVC Polyvinylchloride – type of plastic material
r Bending radius of the system, in m
t Longitudinal thickness of the upstand, in m
c
t Thickness of the upstand at the gable end, in m
i,ge
U Thermal transmittance of the edge profile, in W/(m ⋅K)
e
U Thermal transmittance of the junction part, in W/(m ⋅K)
j
U Thermal transmittance of the panels, in W/(m ⋅K)
p
U Total thermal transmittance of a rooflight without upstand, in W/(m ⋅K)
r
U Total thermal transmittance of a rooflight without upstand (reference model), in W/(m ⋅K)
r,ref
U Total thermal transmittance of a rooflight with upstand, in W/(m ⋅K)
rc
U Total thermal transmittance of a rooflight with upstand (300 mm height, reference model),
rcref300
in W/(m ⋅K)
U Thermal transmittance of the translucent part, in W/(m ⋅K)
t
U Thermal transmittance of the upstand, in W/(m ⋅K)
up
U Thermal transmittance of the upstand and the edge profile, if so, in W/(m ⋅K)
up,e
v Vertical envelope boundary
w Width of the daylight size, in m
o
α Slope angle at the upstand, in degree
β Central angle (= 2α), in degree
Ψ Linear thermal transmittance in the transition zone of edge profile and upstand, in W/(m⋅K)
e
Ψ Linear thermal transmittance in the transition zone between translucent parts and upstand,
et
in W/(m⋅K)
Ψ Linear thermal transmittance in the transition zone of the translucent part or panels and
j
junction part, in W/(m⋅K)
Ψ Linear thermal transmittance in the transition zone of the translucent part or panels and
t
edge profile, in W/(m⋅K)
Cc Change in light transmittance, expressed in %
prEN 14963-1:2020 (E)
ΔYI Change in the yellowness index
g Total solar energy transmittance (solar factor)
H Energy applied during the ageing procedure, in GJ/m
c
L Light transmittance of a test piece, in %
s
L Light transmittance of the nth test piece, in %
sn
τ Light transmittance for the CIE-standard illuminant A, expressed in %
A
τ Light transmittance for the CIE-standard illuminant D , expressed in %
D65 65
τ Solar direct transmittance, expressed in %
e
M Mean of R and R
s 1 3
M Light transmittance of the sample
v
R Thermal resistance, in m ·K/W
R , R Reading of galvanometer without any test piece
1 3
R Reading of galvanometer with the test piece
R Airborne sound index, in dB
w
U Thermal transmittance, in W/(m ·K)
YI Value of the yellowness index of an aged test piece
YI Value of the yellowness index of an un-aged test piece
ΔE Variation of Young’s-modulus (E), expressed in %
Δσ Variation of strength, expressed in %
X Y Z Colorimetric coordinates
CIE, CIE, CIE
4 Product characteristics
4.1 General
For continuous plastic rooflights without upstand, the quality of the as-built upstand should reach the
quality of the tested upstand to guarantee the test results in use.
4.2 Radiation properties
4.2.1 General
The radiation properties of a continuous plastic rooflight with and without upstands indicate the ability
to transmit light and energy through the translucent part.
The radiation properties are essentially characterized by the light transmittance τ , the solar direct
D65
transmittance τ and the total solar energy transmittance g. These spectral characteristics of the
e
translucent part of a continuous plastic rooflight include the luminous and solar characteristics, and the
reflection and transmission characteristics.
The characteristics are as follows:
prEN 14963-1:2020 (E)
— the spectral transmittance τ(λ) and the spectral reflectance ρ(λ) in the wavelength range from 300
nm to 2 450 nm;
— the light transmittance τ and the light reflectance ρ for standard illuminant D65;
D65 D65
— the solar direct transmittance τ and the solar direct reflectance ρ ;
e e
— the total solar energy transmittance (solar factor) g.
The characteristics are determined for quasi-parallel, near normal radiation incidence using the radiation
distribution of standard illuminant D65 (see EN 410:2011, Table 1), solar radiation in accordance with
EN 410:2011 Table 2 and ultraviolet (UV) radiation in accordance with EN 410:2011, Table 3.
The solar factor depends, as all other optical material characteristics, on the angle of incidence. The angle
of incidence should be taken into account for different sun positions.
4.2.2 Light transmittance τ
D65
The light transmittance, τ , of the translucent part is determined as light transmittance of a single skin
D65
or a combination of skins including any filling material and all variants of each skin in new continuous
plastic rooflights according to 5.2.1 and the result shall be stated in %.
4.2.3 Solar direct transmittance τ
e
The solar direct transmittance, τ , of the translucent part is determined as the solar transmittance of a
e
single skin or a combination of skins including any filling material and all variants of each skin in new
continuous plastic rooflights according to 5.2.2 and the result shall be stated in %.
4.2.4 Total solar energy transmittance g
The total solar energy transmittance, g, of the translucent part as defined in EN 410:2011 shall be
determined by calculation according to or by measurement according to 5.2.3 and the result shall be
stated in %.
The calculation method is applicable only to transparent parts with symmetrical on-plan cross-section.
Where the calculation method is not applicable, then the total solar energy transmittance shall be
measured.
4.3 Durability of radiation properties
The durability of radiation properties of the product is evaluated by measuring the variation of total
luminous transmittance and yellowness index after ageing procedure of the material of the translucent
part with the same energy level for these characteristics either on flat sheets and/or finished product.
The ageing procedure and testing for translucent parts made of thermoplastic materials, for example
polycarbonate, shall be carried out in accordance with 5.3. This method is not appropriate for translucent
parts made of thermosetting materials, for example glass reinforced polyester (GF-UP) and should not be
used for these materials, and no performance can be given.
NOTE There is not a single durability test or classification method available which correlates to real life
performance correctly for all materials. Durability of thermosetting materials is assessed separately using the
method shown in Annex F (informative) of EN 1013:2012+A1:2014.
4.4 Watertightness
The watertightness indicates the resistance of the installed continuous plastic rooflight to rainfall in the
absence of pressure differences.
prEN 14963-1:2020 (E)
The continuous plastic rooflight with openable parts in the closed condition shall be tested in accordance
with 5.4. A successful test is achieved, when no water drops from the internal surface. The design of the
continuous plastic rooflight shall ensure that water drains away externally. A positive test shall be
expressed as “Watertight without pressure” for this characteristic.
4.5 Mechanical resistance
4.5.1 General
The mechanical resistance of continuous plastic rooflights is characterized by its resistance to uniformly
distributed upward loads (e.g. wind loads) and its resistance to uniformly distributed downward loads
(e.g. snow loads, wind loads, uniformly distributed self-weight loads). Openable parts are not part of this
assessment.
These characteristics shall be tested in accordance with 5.5.
For the actions on structures, take into consideration the principle of EN 1991-1-3 and EN 1991-1-4.
The assessed results are valid for continuous plastic rooflight with upstand and continuous plastic
rooflight without upstand on the basis, that the stiffness of any upstand in all directions shall be equal to
or greater than the stiffness of the upstand subjected to verification by testing. If upstands differ from the
one tested together with the continuous plastic rooflight itself, their performance shall be calculated
using the forces exerted by the rooflight in horizontal and vertical directions. The deformation has to be
lower than or equal to that tested. The ability of upstands to be self-supporting is not assessed with the
given methods.
Continuous rooflights with translucent parts made of plastics are normally not permitted for the use with
live loads coming from imposed loads.
4.5.2 Resistance to upward loads
The reference method for the determination of the resistance to upward load of the continuous plastic
rooflight shall be tested and categorized in accordance with 5.5.1.2.
A successful test is achieved if neither damage nor significant permanent deformation occurs.
For substitution of components which can be calculated according to relevant EUROCODE calculation
may be used, provided that it does not affect the connection of the translucent part that has been tested.
4.5.3 Resistance to downward loads
The reference method for the determination of the resistance to downward load of the continuous plastic
rooflight shall be tested and categorized in accordance with 5.5.1.3.
A successful test is achieved if neither damage nor significant permanent deformation occurs.
For substitution of components which can be calculated according to relevant EUROCODE calculation
may be used, provided that it does not affect the connection of the translucent part that has been tested.
4.6 Durability of mechanical resistance
The durability of mechanical resistance is evaluated by measuring the variation of Young’s-Modulus (E-
module) and the variation of tensile strength after ageing procedure of the material of the translucent
part with the same energy level for these characteristics either on flat sheets and/or finished product.
The ageing procedure and testing for translucent parts made of thermoplastic materials, for example
polycarbonate, shall be carried out in accordance with 5.3. This method is not appropriate for translucent
parts made of thermosetting materials, for example glass reinforced polyester (GF-UP) and should not be
used for these materials, and no performance can be given.
prEN 14963-1:2020 (E)
NOTE There is not a single durability test or classification method available which correlates to real life
performance correctly for all materials. Durability of thermosetting materials is assessed separately using the
method shown in EN 1013:2012+A1:2014, Annex F (informative).
4.7 Impact resistance
4.7.1 Small, hard body impact
The impact resistance to a hard body indicates the ability of continuous plastic rooflights to resist impacts
of small objects falling onto the product for example during installation and use.
A successful test is achieved when continuous plastic rooflights tested in accordance with 5.6.1 are
resistant to the impact of a small hard body. A positive testing shall be expressed with “Resistant to hard
body 250 g” for this characteristic.
The products shall always be tested with the manufacturer's corresponding or specified upstand. The
assessed results are valid for continuous plastic rooflight with upstand and continuous plastic rooflight
without upstand.
4.7.2 Large, soft body impact
The resistance to large, soft bodies indicates the ability of continuous plastic rooflights to resist a person
falling on the rooflight with different impact energies.
For the determination of the resistance to the impact of a large soft body the continuous plastic rooflight
shall be tested and categorized in accordance with 5.7.2.
The products shall always be tested with the manufacturer's corresponding or specified upstand. The
assessed results are valid for continuous plastic rooflight with upstand and continuous plastic rooflight
without upstand.
A successful test is achieved if neither the bag nor the gauge can pass through the specimen.
4.8 Reaction to fire
4.8.1 General
The reaction to fire of a continuous plastic rooflight characterizes the contribution of the materials used
within the rooflight when exposed to flames and heat in the event of fire.
When assessed, the reaction to fire of the continuous plastic rooflight with and without upstand shall be
classified based on the least favourable classification of its substantial component parts for reaction to
fire according to EN 13501-1:2018.
Therefore, when tested the substantial components in accordance to the test methods given in subclause
5.8 relevant for the claimed class, the test results are expressed as a class according to EN 13501-1:2018.

4.8.2 Classification without further testing (CWFT)
Whether components used within the continuous plastic rooflight fulfil the conditions, under which they
have demonstrated of having a stable reaction to fire performance in a given reaction to fire class, based
on testing to the appropriate EN test methods, the established assigned class applies to these components
without the need of carrying out further reaction to fire tests.
4.8.3 Classification without testing (WT)
Whether components used within the continuous plastic rooflight are made from one or more of the
materials that have been considered, under established conditions, as belonging to the category “No
prEN 14963-1:2020 (E)
contribution to fire” because of their low level of combustibility, the reaction to fire class A1 applies to
these components without the need of carrying out reaction to fire tests.
4.9 Resistance to fire
The resistance to fire is the capability of the continuous plastic rooflight to provide, in the event of fire
and for a given time, one or more of the following behaviours:
— Load-bearing capacity (R),
— Integrity (E),
— Insulation (I),
— Radiation (W)
When tested a continuous plastic rooflight according to 5.9, the results are expressed as class in minutes
according to EN 13501-2:2016, completed by the established suffixes.
NOTE Translucent parts made of plastic materials are normally unlikely to achieve a successful test for resistance
to fire.
4.10 External fire performance
The external fire performance of a continuous plastic rooflight indicates the behaviour of the rooflight
when subject to the spread of fire and fire penetration from neighbouring construction works.
When tested following one of the two relevant test methods for rooflights t1 or t4 in accordance with
5.10, the external fire performance of the continuous plastic rooflight shall be classified in accordance
with EN 13501-5:2016 indicating method t1 or t4 as appropriate.
4.11 Air permeability
The air permeability of a continuous plastic rooflight indicates the airflow through a closed rooflight in
relation to the pressure difference between the inside and the outside.
For determination of the air permeability the continuous plastic rooflight shall be tested and classified in
accordance with 5.11.
NOTE To ensure the classified performance level for the installed continuous plastic rooflight an airtight
installation of the upstand to the roof is assumed.
4.12 Thermal resistance
The thermal resistance of a continuous plastic rooflight indicates the thermal transmission through a
rooflight referenced to its outer exposed surface in relation
...