EN 14963:2006

Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methods

This European Standard specifies requirements for continuous rooflights made of plastic materials (e.g.
GF-UP, PC, PMMA, PVC) with or without bearing profiles to be used with upstands made of e.g. GF-UP, PVC, steel, aluminium, wood or concrete, for laying in roofs, which serve the purpose of lighting by means of daylight and, possibly, of ventilating interior spaces by means of opening devices.
This European Standard applies to continuous rooflights without upstand and to continuous rooflights, where a single manufacturer provides all components of the rooflight with upstand, which are bought in a single purchase.  Products covered by this European Standard may be supplied as continuous rooflights with and without upstand and rooflights intended to be used with an upstand, for which the upstand is specified, but not supplied.
It applies to continuous rooflights when mounted with an inclination  in the longitudinal direction not more than 10° to the horizontal and not more than 10° in the transversal direction (see Figure 1):
a)   with bearing profiles:
   symmetrical, angled, curved (see Figure 2) or flat (see Figure 3);
   constructed with bearing profiles parallel to the span and with a rectangular ground plan;
b)   without bearing profiles:
   symmetrical, angled or curved with an  angle not more than 45° (measured to the horizontal at the line of fixing, see Figure 4);
   constructed with a span (width) lower than or equal 2,5 m and with a rectangular ground plan.
This European Standard applies to continuous rooflights, including barrel vault rooflights, with a rectangular ground plan of plastic glazing laying in roofs having, in addition a minimum distance of b/3
(b = effective span of rooflights, corresponding to the light opening). The upstands may be self-supporting or non self-supporting.
The design of the upstand is not part of this European Standard. Upstands can be prefabricated or site fabricated. Prefabricated upstands are to be considered as p

Dachdeckungen - Dachlichtbänder aus Kunststoff mit oder ohne Aufsetzkränzen - Klassifizierung, Anforderungen und Prüfverfahren

Diese Europäische Norm legt Anforderungen an Dachlichtbänder aus Kunststoff (z. B. GF UP, PC, PMMA, PVC) mit oder ohne Tragkonstruktion zur Verwendung mit Aufsetzkränzen aus z. B. GF UP, PVC, Stahl, Alu¬minium, Holz oder Beton zum Einbau in Dächern fest, die zur Ausleuchtung mit Tageslicht und möglicherweise zum Lüften von Räumen mittels Öffnungselementen dienen.
Diese Europäische Norm gilt für Dachlichtbänder ohne Aufsetzkränze und für Dachlichtbänder, bei denen ein einzelner Hersteller alle Komponenten des Dachlichtbandes mit Aufsetzkranz bereitstellt, die in einem einzelnen Kauf erworben werden. Die durch diese Europäische Norm abgedeckten Produkte können als Dachlichtbänder mit oder ohne Aufsetzkranz sowie als Dachlichtbänder geliefert werden, die zur Anwendung mit einem Aufsetzkranz vorgesehen sind, der festgelegt ist, jedoch nicht mitgeliefert wird.
Die Norm gilt für Dachlichtbänder, die mit einer Neigung  von höchstens 10° gegen die Horizontale in Längs  und Querrichtung eingebaut werden (siehe Bild 1):
a)   mit Tragkonstruktion:
-   symmetrisch, geneigt, gebogen (siehe Bild 2) oder flach (siehe Bild 3);
-   hergestellt mit der Tragkonstruktion parallel zur Spannweite und mit rechteckigem Grundriss;
b)   ohne Tragkonstruktion:
-   symmetrisch, geneigt oder gebogen mit einem Winkel  von höchstens 45° (gemessen zur Horizontalen an der Befestigungslinie, siehe Bild 4);
-   hergestellt mit einer Spannweite (Breite) kleiner oder gleich 2,5 m und mit rechteckigem Grundriss.
Diese Europäische Norm gilt für Dachlichtbänder, einschließlich Tonnengewölbelichtbänder, mit rechteckigem Grundriss der Kunststoffverglasung, die in Dächer eingebaut werden und zusätzlich einen Mindestabstand von b/3 untereinander haben (b  rechnerische Spannweite der Oberlichter, entspricht der Lichtöffnung). Die Aufsetzkränze können selbsttragend oder nicht selbsttragend sein.

Éléments de couverture - Lanterneaux continus en matière plastique avec et sans costière - Classification, spécifications et méthodes d'essais

Strešna kritina - Zvezni plastični svetlobniki z razmikom ali brez njega - Klasifikacija, zahteve in preskusne metode

General Information

• Status: Published
• Publication Date: 10-Oct-2006
• Withdrawal Date: 30-Jul-2008
• ICS: 91.060.20 - Roofs
• Technical Committee: CEN/TC 128 - Roof covering products for discontinuous laying and products for wall cladding
• Drafting Committee: CEN/TC 128/SC 9 - Prefabricated accessories for roofing
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 11-Oct-2006
• Completion Date: 11-Oct-2006
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/122 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on roof coverings, rooflights, roof windows and ancillary products
• Ref Project: SIST EN 14963:2007 - Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methods

Relations

• Revised: FprEN 14963-1 - Prefabricated accessories for roofing - Part 1: Continuous plastic rooflights - Product specification and test methods
• Effective Date: 17-Oct-2018

Overview

EN 14963:2006 - "Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methods" is a European Standard published by CEN. It defines requirements, test methods and classification for continuous plastic rooflights (e.g. GF‑UP, PC, PMMA, PVC), supplied with or without upstands, used to provide daylighting and optional ventilation in roof assemblies. The standard covers products mounted close to horizontal (inclination ≤ 10° longitudinally and transversally), a variety of cross‑sections (symmetrical, angled, curved or flat), barrel‑vault forms and rectangular ground plans within specified span and geometry limits.

Key topics and technical requirements

EN 14963:2006 addresses the following core technical topics:

• Radiation transmittance (light and solar transmission characteristics) and alternative test methods.
• Durability and exposure testing for plastic glazing (weathering and ageing considerations).
• Water tightness performance and related test procedures.
• Mechanical performance including flexural and tensile behavior, impact resistance and structural aspects for bearing-profile and non‑bearing systems.
• Fire performance: reaction to fire, resistance to fire and external roof fire behaviour in line with EN fire classification methods.
• Air permeability, thermal resistance (U‑value considerations) and airborne sound insulation.
• Testing protocols (specimen sizes, test reports) and factory production control (FPC) / initial type testing for conformity assessment.
• Classification, designation and marking rules plus informative guidance for safety, application, use and maintenance (Annex A).
• CE marking and Construction Products Directive linkage (informative Annex ZA).

Practical applications

EN 14963 is used to ensure that continuous plastic rooflights deliver reliable daylighting, weather performance and safety in non‑vertical roofing situations. Typical applications:

• Industrial and commercial skylights (single or multi‑span rooflight strips)
• Barrel vault lighting runs in warehouses, factories, shopping centres
• Rooflight systems integrated with specified prefabricated upstands

Who uses this standard

• Manufacturers of continuous plastic rooflights and prefabricated upstands
• Architects, façade and roofing engineers specifying daylighting and ventilating roof components
• Test laboratories performing conformity and performance testing
• Building control authorities, specifiers and contractors assessing compliance and CE marking documentation

Related standards

Relevant references and complementary standards cited in EN 14963:2006 include:

• EN 1013 series (light transmitting profiled plastic sheeting)
• EN 410 (luminous and solar characteristics of glazing)
• EN 13501‑1 / EN 13501‑5 (fire classification)
• EN ISO 4892 (artificial weathering/xenon‑arc)
• EN ISO 178, EN ISO 527 (plastics mechanical tests) Consult EN 14963 for the full normative reference list and conformity procedures.

Keywords: EN 14963:2006, continuous rooflights, plastic rooflights, rooflight test methods, upstands, daylighting, rooflight classification, CE marking.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methodsÉléments de couverture - Lanterneaux continus en matiere plastique avec et sans costiere - Classification, spécifications et méthodes d'essaisDachdeckungen - Dachlichtbänder aus Kunststoff mit oder ohne Aufsetzkränzen - Klassifizierung, Anforderungen und PrüfverfahrenTa slovenski standard je istoveten z:EN 14963:2006SIST EN 14963:2007en91.060.20StreheRoofsICS:SLOVENSKI
STANDARDSIST EN 14963:200701-marec-2007

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14963October 2006ICS 91.060.20 English VersionRoof coverings - Continuous rooflights of plastics with or withoutupstands - Classification, requirements and test methodsÉléments de couverture - Lanterneaux continus en matièreplastique avec et sans costière - Classification,spécifications et méthodes d'essaisDachdeckungen - Dachlichtbänder aus Kunststoff mit oderohne Aufsetzkränzen - Klassifizierung, Anforderungen undPrüfverfahrenThis European Standard was approved by CEN on 4 September 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14963:2006: E

Guidelines for safety, application, use and maintenance.37 A.1 General.37 A.2 Guidelines for safety.37 A.3 Guidelines for application and use.37 A.4 Maintenance.38 Annex B (normative)
Alternative test method for determination of light transmittance.39 B.1 General.39 B.2 Apparatus.39 B.3 Test pieces.39 B.4 Procedure.40 B.5 Expression of results.40 Annex C (informative)
Information regarding light transmittance.41 C.1 General.41 C.2 Material characteristics.41 C.3 Transmission.42 C.4 Reflectance factor (according to CIE).42 C.5 Absorptance.43

Clauses of this European Standard addressing the provisions of EU Construction Products Directive.45 ZA.1 Scope and relevant characteristics.45 ZA.2 Procedures for attestation of conformity of continuous rooflights.47 ZA.3 CE marking and labelling.52 Bibliography.56

GF-UP, PC, PMMA, PVC) with or without bearing profiles to be used with upstands made of e.g. GF-UP, PVC, steel, aluminium, wood or concrete, for laying in roofs, which serve the purpose of lighting by means of daylight and, possibly, of ventilating interior spaces by means of opening devices. This European Standard applies to continuous rooflights without upstand and to continuous rooflights, where a single manufacturer provides all components of the rooflight with upstand, which are bought in a single purchase.
Products covered by this European Standard may be supplied as continuous rooflights with and without upstand and rooflights intended to be used with an upstand, for which the upstand is specified, but not supplied. It applies to continuous rooflights when mounted with an inclination δ in the longitudinal direction not more than 10° to the horizontal and not more than 10° in the transversal direction (see Figure 1): a) with bearing profiles:  symmetrical, angled, curved (see Figure 2) or flat (see Figure 3);  constructed with bearing profiles parallel to the span and with a rectangular ground plan; b) without bearing profiles:  symmetrical, angled or curved with an α angle not more than 45° (measured to the horizontal at the line of fixing, see Figure 4);  constructed with a span (width) lower than or equal 2,5 m and with a rectangular ground plan. This European Standard applies to continuous rooflights, including barrel vault rooflights, with a rectangular ground plan of plastic glazing laying in roofs having, in addition a minimum distance of b/3
(b = effective span of rooflights, corresponding to the light opening). The upstands may be self-supporting or non self-supporting. The design of the upstand is not part of this European Standard. Upstands can be prefabricated or site fabricated. Prefabricated upstands are to be considered as part of the continuous rooflight. Site fabricated upstands are not covered by this European Standard. This European Standard does not include calculation with regard to works, design requirements and installation techniques. The possible additional functions of smoke and heat ventilation in case of fire, and/or roof access are outside the scope of this European Standard. NOTE 1 Continuous rooflights outside of the scope of this European Standard will be covered by European Technical Approvals based on EOTA ETA-Guideline 010 "Self supporting translucent roof kits". Individual rooflights are covered by EN 1873. NOTE 2 Guidelines for safety, application, use and maintenance of continuous rooflights are presented in Annex A.

side view curved arrangement
top view Key 1 joint be built-in width l span δ inclination to the horizontal Figure 1 — Range of inclination of continuous rooflights without bearing profiles δ δ

side view curved arrangement
top view
Examples for different
cross sections Key 1 covering profile 2 solid or multi-wall sheet 3 bearing profile 4 upstand 5 support 6 screw 7 sealing profile 8 marginal sheet 9 single span sheet 10 double span sheet 11 triple span sheet
a inclination measured to the horizontal at the line of fixing ap spacing of the bearing profiles ar spacing of the bearing profiles for marginal sheets bA width of the bearing profiles ba supported width of the sheet la supported length of the sheet le sheet width R radius
NOTE If drilled profiles should be avoided, e.g. in PMMA-sheets, the covering profiles in curved systems can be alternatively fixed at their end (similar to a tie member). Figure 2 — Example for curved continuous rooflights with bearing profiles, for single, double and triple span systems

side view flat arrangement
top view
examples for different
cross sections
Key 1 covering profile 2 solid or multi-wall sheet 3 bearing profile 4 upstand 5 support
6 screw 7 sealing profile 8 marginal sheet
9 single span sheet 10 double span sheet 11 triple span sheet
ap spacing of the bearing profiles ar spacing of the bearing profiles for marginal sheet bA width of the bearing profiles ba supported width of the sheet la supported length of the sheet le sheet width σ inclination to the horizontal Figure 3 — Example for flat continuous rooflights with bearing profiles, for single, double and triple span systems

side view curved arrangement
top view
examples for different
cross sections
Key 1 single or multi-layer sheets with joints parallel to the span 2 support 3 joint 4 upstand
a inclination measured to the horizontal at the line of fixing be built-in width f
height l span la supported length of the sheet r radius of fillet
Figure 4 — Examples for curved continuous rooflights without bearing profiles 2 Normative references The following referenced documents are indispensable for the application 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, Glass in building — Determination of luminous and solar characteristics of glazing EN 596, Timber structures — Test methods — Soft body impact test of timber framed walls

3.9 accessories connections, opening and locking devices and seals for the assembly of the elements according to 3.1 to 3.6 and 3.8 3.10 batch quantity of material made in a single operation, or in the case of continuous production for a defined quantity, which need to be demonstrated by the producer to have a uniform composition 4 Symbols and abbreviations Cc Change in light transmittance expressed in % ûYI Change in the yellowness index g Total solar energy transmittance (solar factor) Hc Energy applied during the ageing procedure Ls Light transmittance of a test piece Lsn
Light transmittance of the nth test piece τA Light transmittance for the CIE-standard illuminant A expressed in % τV Light transmittance for the CIE-standard illuminant D65 expressed in % τe Solar direct transmittance expressed in % Ms
Mean of R1 and R3 Mv Light transmittance of the sample R Thermal resistance in m²·K/W R1 and R3 Reading of galvanometer without any test piece R2 Reading of galvanometer with the test piece Rw Airborne sound index in dB U Heat transmittance W/(m²·K) YI Value of the yellowness index of an aged test piece

ZCIE Colourimetric coordinates 5 Requirements 5.1 Radiation transmittance 5.1.1 Degrees of total luminous transmittance (ττττV) and total solar energy transmittance (ττττe) The degrees of light transmittance τV and direct radiant transmittance τe for solar radiation of each glazing element as defined in 3.1 in new continuous plastic rooflights shall be stated by the manufacturer when measured with a photometer according to 6.1.1 either on a flat specimen and/or a finished product. In factory production control the recorded τV value of total luminous transmittance shall be within ± 5 % of the stated value. 5.1.2 Solar factor (g) The total solar energy transmittance g (solar factor) according to 6.1.2 of new continuous rooflights shall be stated by the manufacturer (see Annex C). 5.2 Durability 5.2.1 General Durability of the product is evaluated by measuring the variation of total luminous transmittance, yellowness index and mechanical properties after an ageing procedure of the rooflight material with the same energy level for the three following characteristics either on flat sheets and/or finished product. The ageing procedure shall be conducted in accordance with 6.2. NOTE For the most common materials (GF-UP, PC, PMMA and PVC) types have been indicated in EN 1013-1, -2, -3, -4 and -5. 5.2.2 Variation of light transmittance ττττV and yellowness index YI(∆∆∆∆YI) Continuous rooflights shall be classified into one of the nine types given in Table 1.

The figures indicated for the change of light transmittance τV refer to variation in percentage of the initial value. 5.2.3 Variation of mechanical properties The tensile strength and Young’s Modulus are properties of a material which can vary with age. Where required, the variation of the properties shall be determined by a bending test (or a tensile test) as defined in 6.2.4. The percentage reduction in Young’s Modulus, E, and tensile strength, 1, between new samples and samples aged to energy exposures (Hc) as described in Table 1, shall then be expressed in accordance with Tables 2 and 3. If the geometry of a multi-walled sheet does not allow the mechanical test on each wall, the test shall be carried out on a solid sheet of the same formulation and of a thickness not greater than the combined horizontal wall thicknesses.

Table 3 — Material classification according to the change of σσσσ after an ageing procedure at the same energy level Hc selected from Table 1 Type ∆∆∆∆σσσσ % Ku 0 ≥ 0 Ku 1 0 > ∆σ ≥ -10 Ku 2 -10 > ∆σ ≥ -20 Ku 3 -20 > ∆σ ≥ -30
5.3 Water tightness 5.3.1 Continuous rooflights with upstand Water tightness shall be assessed when subject to regulatory requirements and may be assessed otherwise. The continuous plastic rooflight in the closed condition shall be tested in accordance with 6.3. No water shall drop from the internal surface. The design of the continuous rooflight shall ensure that water drains away. 5.3.2 Rooflight sheets (may be used for continuous rooflights without upstand) Water tightness shall be assessed when subject to regulatory requirements and may be assessed otherwise. The products covered by this European Standard are water impermeable provided that they are free of defects such as holes. The absence of such defects shall be checked by visual inspection of the finished product. 5.4 Mechanical performances 5.4.1 General The mechanical performances shall be tested in accordance with 6.4.1. Alternatively for continuous rooflights with bearing profiles which can be calculated according to e.g.
EN 1994-1-1, calculation may be used instead of testing, provided that the junction of bearing profile - glazing element is tested.
As a result of the testing method, the acting forces are normal to the glazing element surface instead of horizontal.

If upstands differ from the one tested or calculated together with the continuous 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 or calculated. 5.4.2 Resistance to upward loads Resistance to upward loads shall be assessed when subject to regulatory requirements and may be assessed otherwise. According to their resistance to upward loads, continuous plastic rooflights are classified into one of the four types as given in Table 4. Table 4 — Classes of upward loads Type Load N/m2 UL 1000 1 000 UL 1500 1 500 UL 3000 3 000 UL A a Aa a
The value of A can be selected to meet specific requirements.
The designations UL 1000, UL 1500, UL 3000 and UL A represent the test upward load in N/m2 applied, when the continuous rooflight is tested in accordance with 6.4.1. When tested in accordance with 6.4.1, the rooflight shall be capable of resisting the test load. A successful test is achieved if neither damage nor permanent deformation occurs which would affect the performance in use (e.g. water tightness, opening). 5.4.3 Resistance to downward loads Resistance to downward loads shall be assessed when subject to regulatory requirements and may be assessed otherwise. According to their resistance to downward loads, continuous plastic rooflights are classified into one of the five types as given in Table 5.

If it is possible to calculate the rooflight with bearing profile, testing is not necessary. b
The value of A can be selected to meet specific requirements.
The designations DL 750, DL 1175, DL 1750, DL 2500 and DL A represent the test downward load in N/m² applied, when the continuous rooflight is tested in accordance with 6.4.1. When tested in accordance with 6.4.1, the rooflight shall be capable of resisting the test load. A successful test is achieved if neither damage nor permanent deformation occurs which would affect the performance in use (e.g. water tightness, opening). 5.4.4 Impact load 5.4.4.1 Small, hard body Resistance to impact load shall be assessed when subject to regulatory requirements and may be assessed otherwise. The product shall be tested in accordance with 6.4.2.1. Continuous plastic rooflights shall be resistant to the impact of a small hard body. The products shall always be tested with the manufacturer's corresponding or specified upstand. NOTE The identification of the tested assembly (the rooflight and the upstand) is part of the information accompanying the declared performance. If no visible damage occurs, the test specimen may be used for the soft body test according to 6.4.2.2. 5.4.4.2 Large, soft body Resistance to impact load shall be assessed when subject to regulatory requirements and may be assessed otherwise. The product shall be tested in accordance with 6.4.2.2. Continuous plastic rooflights shall be classified according to Table 6. The products shall always be tested with the manufacturer's corresponding or specified upstand. NOTE The identification of the tested assembly (the rooflight and the upstand) is part of the information accompanying the declared performance.

The value of A can be selected to meet specific requirements.
The designations SB 1200, SB 800, SB 600, SB 300 and SB A represent the test impact energy in Joules applied, when the continuous rooflight is tested in accordance with 6.4.2.2. A successful test is achieved if neither the bag nor the gauge can pass through the specimen. 5.5 Reaction to fire Reaction to fire shall be assessed when subject to regulatory requirements and may be assessed otherwise. The product shall be tested using the test method(s) as referred to and classified in accordance with
EN 13501-1. Where required by a particular test method, and in addition to any specific requirements in that test method, the product shall be mounted and fixed for testing in a manner representative of its intended end use. Where substantial parts of the rooflight (e.g. the rooflight and its upstand) are made of different materials, and it is not practicable to test them together, each substantial part shall be tested separately and its reaction to fire performance declared separately. 5.6 Resistance to fire Resistance to fire shall be assessed when subject to regulatory requirements and may be assessed otherwise. The product shall be tested using the test method(s) as referred to and classified in accordance with
EN 13501-2. Where required by a particular test method, and in addition to any specific requirements in that test method, the product shall be mounted and fixed for testing in a manner representative of its intended end use. 5.7 External fire performance External fire performance shall be assessed when subject to regulatory requirements and may be assessed otherwise. The product shall be tested using the test method(s) as referred to and classified in accordance with EN 13501-5. The products to be tested shall be installed, in addition to the general provisions given in the relevant test method, in a manner representative of their intended end use.

Where required, the absence of such defects shall be checked by visual inspection of the finished product. 5.9 Thermal resistance 5.9.1 General Thermal resistance shall be evaluated and declared when subject to regulatory requirements, and may be evaluated and declared when not subject to such requirements. 5.9.2 Continuous rooflights The calculated or measured value of the thermal transmittance, U value, in W/(m²·K) shall be determined.
The thermal resistance of continuous rooflights depends on many glazing elements and bearing profile combinations. Calculations shall be performed on the basis of the thermal properties of component products (see 5.9.3) in accordance with EN ISO 6946.
The effect of any areas of thermal bridging shall be included as a massed area resultant for the total product based on its thermal resistance, R-value, determined in accordance with EN ISO 10211-1, EN ISO 10211-2 and/or EN ISO 14683.
Alternatively, measurements in accordance with EN ISO 12567-2 or ETAG 010, as appropriate for a given product, shall be performed. For calculation purposes for the complete rooflight construction consisting of glazing elements, edge profiles and bearing profiles, the thermal transmittance shall be determined in accordance to EN ISO 10077-2. 5.9.3 Continuous rooflight components 5.9.3.1 Glazing element The thermal transmittance, U value, in W/(m²·K) of the glazing element shall be in accordance with the values as specified in Table 7.
In case Table 7 does not apply or if the manufacturer claims better performance, the thermal transmittance shall be determined in accordance with EN ISO 10456, based on test results in accordance with EN 674 or EN 675, or calculated in accordance with EN 673 (for flat sheets).
The values relate to the surface area of the glazing element made of one or more skins of solid sheet material, without edge effects. 5.9.3.2 Upstand, edge profiles and accessories For calculation purposes for the rooflight with upstand (see 5.9.1), the thermal transmittance of upstands, edge profiles and accessories shall be determined in accordance with EN ISO 10077-2.

5.10 Airborne sound insulation This characteristic shall be evaluated and declared when subject to regulatory requirements, and may be evaluated and declared when not subject to such requirements. If testing is required, the test method given in EN ISO 140-3 shall apply. Evaluation of the test results shall be performed in accordance with EN ISO 717-1. 6 Testing 6.1 Radiation transmittance 6.1.1 Light transmittance The radiation transmittance of the continuous rooflight material is determined as light transmittance τV and direct radiant transmittance τe for solar radiation using a photometer according to EN ISO 13468-1 or
EN ISO 13468-2. The light transmittance of structured sheets is determined as light transmittance τA according to EN ISO 12017:1996, Annex A. If the reference test method specified above is not used for factory production control testing, the alternative method given in Annex B shall be followed. 6.1.2 Solar factor (g) The total solar energy transmittance g (solar factor) shall be determined according to EN 410 (see Annex C). 6.2 Durability 6.2.1 Conditions for accelerated ageing The testing shall be carried out in accordance with EN ISO 4892-1. The spectral distribution of the filtered Xenon-arc-radiation shall be in accordance with EN ISO 4892-2.

5) %;  spray cycle: 120 min = 18 min rain + 102 min dry. Either the black panel temperature or the black standard temperature may be used according to the details of the apparatus. The dimensions of the test samples shall be sufficient to be subsequently tested for light transmittance (see 6.2.2), yellowness index (see 6.2.3) and mechanical properties (see 6.2.4). Test specimens for these tests shall be representative: of the sheets used in practice. 6.2.2 Variation of light transmittance 6.2.2.1 Apparatus Determine the light transmittance using a photometer as described in 6.1 before and after the ageing procedure. 6.2.2.2 Test pieces Use ten test pieces chosen at random so as to be representative. 6.2.2.3 Procedure Calibrate and operate the photometer and other instruments in accordance with instructions supplied by their manufacturer. Obtain spectral transmittance data relative to air in the wave length range of 380 nm to 780 nm. 6.2.2.4 Expression of results The change of light transmittance is expressed as the mean of the variation of light transmittance of each test piece. These figures are evaluated as a percentage of the initial value. 6.2.3 Variation in yellowness index 6.2.3.1 Apparatus Determine the yellowness index using a photometer as described in 6.1 before and after the ageing procedure. 6.2.3.2 Test pieces The same test pieces as already used for change in light transmittance shall be used.

(1) Calculate the magnitude and direction of change in yellowness index from the following equation: ∆YI = YI − YI0
(2) 6.2.4 Variation of mechanical properties with ageing Measure the bending strength and the corresponding E-modulus of the material of the sheets according to EN ISO 14125 or EN ISO 178 for new samples and samples aged to ∆E according to Table 2 and aged to HC according to Table 1. If a bending test cannot be performed measure the tensile strength and the corresponding E-modulus according to EN ISO 527-1 and EN ISO 527-2. Ten test pieces are used for evaluation, five new samples and five aged samples. Bending or tensile and light transmitting tests shall be carried out on the same sample ensuring the aged surface is in tension. 6.3 Water tightness 6.3.1 Principle This test simulates the effect of rainwater or melting snow which can run across the external surface of the continuous rooflight. 6.3.2 Procedure A representative section of the complete continuous rooflight as installed on the roof in accordance with manufacturer's specifications, shall be sprayed with water in the following manner:  water is sprayed over the whole test area, the nozzles being in horizontal position;  minimum flow volume of 2 l/(m2.min) on the test area;  test duration of 60 min. Ventilation panels shall, if present, be in the closed position during the test.

Key 1 spray nozzle Figure 5 — Grid system of nozzles for water tightness test
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