Prefabricated accessories for roofing - Part 1: Continuous plastic rooflights - Product specification and test methods

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.
Figures 1 to 5...

Dachdeckungen - Teil 1: Dachlichtbänder aus Kunststoff - Klassifizierung, Leistungen und Prüfverfahren

Dieses Dokument legt Merkmale für Kunststofflichtbänder fest. Diese Dachlichtbänder besitzen lichtdurchlässige Teile aus Kunststoff (z. B. GF UP, PC, PMMA, PVC) mit oder ohne Füllstoffe und mit oder ohne Trägerelemente, die in erster Linie der natürlichen Belichtung dienen.
Dieses Dokument gilt für Kunststofflichtbänder mit Aufsetzkränzen, z. B. aus GF UP, PVC, Stahl, Aluminium oder Holz, und für Kunststofflichtbänder ohne Aufsetzkranz, die zur Verwendung auf Aufsetzkränzen vorgesehen sind. Diese Kunststofflichtbänder sind für den Einbau in Flachdächer oder leicht geneigte Dächer vorgesehen.
Dieses Dokument gilt für Kunststofflichtbänder, für die ein Hersteller im Rahmen eines Auftrages sämtliche Bauteile des Dachlichtbands zum Einbau in das Dach liefert.
Dieses Dokument behandelt Kunststofflichtbänder, die wie folgt gefertigt wurden:
a)   mit Trägerelementen:
-   symmetrisch, geneigt, gebogen oder flach (siehe Bild 1 und Bild 4);
-   hergestellt mit Trägerelementen parallel zur Spannweite und mit rechteckigem Grundriss;
b)   ohne Trägerelemente:
-   symmetrisch, geneigt oder gebogen (siehe Bild 2 und Bild 5) mit einem Winkel  α von höchstens 45° (gemessen zur Horizontalen an der Befestigungslinie, siehe Bild 3);
Dieses Dokument gilt für Kunststofflichtbänder, einschließlich Tonnengewölbelichtbänder, mit rechteckigem Grundriss des lichtdurchlässigen Kunststoffteils, die in Dächer eingebaut werden und einen Mindestabstand von b/3 untereinander haben (b = rechnerische Spannweite der Dachlichtbänder, entspricht der Lichtöffnung). Die Aufsetzkränze können selbsttragend oder nicht selbsttragend sein.
Dieses Dokument gilt nicht für:
-   Kunststofflichtkuppeln nach prEN 1873 1 und Glaslichtkuppeln nach prEN 1873 2;
-   Dachausstiege nach prEN 1873 3;
-   Glasdachlichtbänder nach prEN 14963 2;
-   Dachfenster nach EN 14351 1.
Berechnungen oder Bemessungen hinsichtlich Konstruktion, Auslegungsanforderungen und Einbauverfahren sind in diesem Dokument nicht enthalten.
Die möglichen zusätzlichen Funktionen als Be  und Entlüftung im Alltag, Rauch  und Wärmeabzug, z. B. im Brandfall nach EN 12101 2, als Dachausstieg und/oder Anschlageinrichtung, z. B. nach EN 795, liegen außerhalb des Anwendungsbereichs dieses Dokuments.
ANMERKUNG   Eine unverbindliche Liste von Bestimmungen zum ordnungsgemäßen Einbau und zur ordnungsgemäßen Nutzung und Wartung von Kunststofflichtbändern ist in Anhang A enthalten.

Eléments de couverture - Partie 1: Lanterneaux continus en matière plastique - Classification, spécifications et méthodes d'essais

Le présent document spécifie certaines caractéristiques pour les lanterneaux continus en matière plastique. Ces lanterneaux comportent des panneaux translucides en matériaux plastiques (par exemple GF-UP, PC, PMMA, PVC), avec et sans matériau de remplissage, avec ou sans éléments de support, dont le but principal est de laisser passer la lumière du jour.
Le présent document s'applique aux lanterneaux continus en matière plastique avec costières, par exemple en GF-UP, PVC, acier, aluminium, bois ou béton, et aux lanterneaux continus en matière plastique sans costière, prévus pour être utilisés sur des costières. Ces lanterneaux continus en matière plastique sont destinés à être installés sur des toitures planes et à faibles pentes, en tant qu'éléments de construction préfabriqués.
Le présent document s'applique aux lanterneaux continus en matière plastique pour lesquels un seul fabricant fournit tous les éléments du lanterneau pour son montage sur le toit, lesquels sont achetés dans un même lot.
Le présent document traite des lanterneaux continus en matière plastique fabriqués comme suit :
a)   avec éléments de support :
-   symétriques, à plusieurs pans, courbes ou plats (voir Figures 1 et 4) ;
-   construit avec des éléments de support parallèles à la corde et avec une embase rectangulaire ;
b)   sans éléments de support :
-   symétriques, à plusieurs pans ou courbes (voir Figures 2 et 5) avec un angle α inférieur ou égal à 45° (mesuré par rapport à l'horizontale au niveau de l'axe de fixation, voir Figure 3).
Le présent document s'applique aux lanterneaux continus en matière plastique, y compris aux lanterneaux cintrés, comportant une embase rectangulaire de panneau translucide en matière plastique montés sur des toitures, ayant une distance minimale entre eux de b/3 (b = corde effective des lanterneaux, correspondant à l'ouverture dite « lumière »). Les costières peuvent être autoportantes ou non.
Le présent document ne s'applique pas :
-   aux « Lanterneaux ponctuels en matière plastique » selon le prEN 1873-1 et aux « Lanterneaux ponctuels en verre » selon le prEN 1873-2 ;
-   aux « trappes de toit » selon le prEN 1873-3 ;
-   aux « Lanterneaux continus en verre » selon le prEN 14963-2 ;
-   aux « Fenêtres de toit » selon l'EN 14351-1.
Le présent document ne comprend pas les calculs concernant les ouvrages, les exigences de conception et les méthodes d'installation.
Les éventuelles fonctions supplémentaires de ventilation naturelle quotidienne, d'évacuation des fumées et de la chaleur, comme par exemple en cas d'incendie, conformément à l'EN 12101-2, d'accès à la toiture, et/ou de points d'ancrage conformes par exemple à l'EN 795, ne relèvent pas du domaine d'application du présent document.
NOTE   Une liste indicative des dispositions pour une application, une utilisation et une maintenance correctes des lanterneaux continus en matière plastique est présentée à l'Annexe A.

Predizdelani dodatki za prekrivanje streh - 1. del: Zvezni plastični svetlobniki - Specifikacija proizvoda in preskusne metode

General Information

Status
Not Published
Public Enquiry End Date
19-Oct-2020
Technical Committee
Current Stage
4020 - Public enquire (PE) (Adopted Project)
Start Date
03-Sep-2020
Due Date
21-Jan-2021
Completion Date
20-Oct-2020

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SLOVENSKI STANDARD
oSIST prEN 14963-1:2020
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
oSIST prEN 14963-1:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 14963-1:2020


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.

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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

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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

3

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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
4

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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.
5

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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.
6

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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)
7

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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
8

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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
9

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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)
10

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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.
11

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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
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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
2
A Area of the outer exposed surface of the edge profiles, in m
e
2
A Area of the outer exposed surface of the gable ends, in m
ge
2
A Area of the outer exposed surface of the junction parts, in m
j
2
A Total area of longitudinal junction parts, in m
j,b
2
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
2
A Area of the surface of the rooflight without upstand, in m
r
2
A Area of the surface of the rooflight with upstand, in m
rc
2
A Area of the outer exposed surface of the translucent parts, in m
t
2
A Area of translucent parts (standard sheet), in m
tb
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prEN 14963-1:2020 (E)
A Area of the horizontal projection of the clear opening of the translucent part of continuous
t,flat
2
rooflight, in m
2
A Area of the translucent part of the gable end, in m
t,ge
2
A Area of translucent parts (marginal sheet), in m
tr
2
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
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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
2
U Thermal transmittance of the edge profile, in W/(m ⋅K)
e
2
U Thermal transmittance of the junction part, in W/(m ⋅K)
j
2
U Thermal transmittance of the panels, in W/(m ⋅K)
p
2
U Total thermal transmittance of a rooflight without upstand, in W/(m ⋅K)
r
2
U Total thermal transmittance of a rooflight without upstand (reference model), in W/(m ⋅K)
r,ref
2
U Total thermal transmittance of a rooflight with upstand, in W/(m ⋅K)
rc
U To
...

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