BS EN 1873:2014+A1:2016
$215.11
Prefabricated accessories for roofing. Individual rooflights of plastics. Product specification and test methods
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 84 |
This European Standard specifies requirements for rooflights made of plastic materials (e.g. GF-UP, PC, PMMA, PVC) and rooflights with upstands made of e.g. GF-UP, PVC, steel, aluminium or wood for installation in roofs. These rooflights serve the purpose of introducing daylight.
This European Standard applies to rooflights with a rectangular or circular ground plan (see Figures 1 and 2), with an opening span (width) or diameter not larger than 2,5 m and an opening length not larger than 3,0 m in roof pitches up to 25°. This document does not cover rooflights which contribute to the load-bearing or stiffness of the roof itself.
This European Standard applies to rooflights and rooflights with upstand, where a single manufacturer provides all components of the rooflight with upstand, which are bought in a single purchase.
This European Standard applies to rooflights with one or several translucent parts. Rooflights may be opened by means of opening devices in one or more parts for ventilation.
The possible additional functions of day to day ventilation, smoke and heat ventilation e.g. in case of fire in accordance with EN 12101‑2 , roof access, and/ or slinging point e.g. in accordance with EN 795 are outside the scope of this document.
This European Standard does not include calculations with regard to construction, design requirements and installation techniques.
Guidelines for safety, application, use and maintenance of individual rooflights are presented in Annex A.
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PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 9 | 1 Scope |
| 12 | 2 Normative references |
| 13 | 3 Terms and definitions |
| 15 | 4 Symbols and abbreviations |
| 17 | 5 Requirements |
| 19 | 5.4.3.1 Small, hard body impact 5.4.3.2 Large soft body impact |
| 21 | 6 Testing and classification |
| 22 | 6.3.1.1 Variation of total luminous transmittance τv and yellowness index YI (ΔYI) |
| 23 | 6.3.1.2 Variation of mechanical properties with ageing |
| 24 | 6.3.3.1 Apparatus 6.3.3.2 Test pieces 6.3.3.3 Procedure |
| 25 | 6.3.3.4 Expression of results 6.3.4.1 Apparatus 6.3.4.2 Test pieces 6.3.4.3 Procedure 6.3.4.4 Expression of results |
| 28 | 6.5.1.1 General 6.5.1.2 Classification for upward load 6.5.1.3 Classification for downward load |
| 29 | 6.5.1.4 Test apparatus and procedure 6.5.1.5 Test specimen 6.5.2.1 Small hard body impact |
| 30 | 6.5.2.2 test specimen 6.5.2.3 Large soft body impact |
| 34 | 7 Assessment and verification of constancy of performance – AVCP |
| 36 | 7.3.2.1 Introduction |
| 37 | 7.3.2.2 Equipment 7.3.2.3 Raw materials and components 7.3.2.4 Design process 7.3.2.5 Product testing and evaluation |
| 38 | 7.3.2.6 Non-complying products |
| 40 | 8 Designation and marking |
| 42 | Annex A (informative)Guidelines for safety, application, use and maintenance A.1 General A.2 Guidelines for safety A.3 Guidelines for application and use |
| 43 | A.4 Maintenance |
| 44 | Annex B (normative)Alternative test method for the determination of light transmission B.1 General B.2 Apparatus |
| 45 | B.3 Test pieces B.4 Procedure B.5 Expression of results |
| 46 | Annex C (normative)Test method for air permeability C.1 General C.2 Test apparatus C.3 Test specimen |
| 47 | C.4 Test procedure C.5 Evaluation of the results C.6 Rounding off to be used for the air permeability |
| 48 | C.7 Test report |
| 49 | Annex D (normative)Determination of thermal transmittance of rooflight D.1 General D.2 Determination of thermal transmittance of rooflight components D.2.1 Determination by measurement D.2.2 Determination by calculation D.2.2.1 General D.2.2.2 Thermal transmittance of the upstand Uup and Uup,e D.2.2.3 Thermal transmittance of the edge profile Ue D.2.2.4 Thermal transmittance of the junction part Uj D.2.2.5 Thermal transmittance of the translucent parts Ut |
| 50 | D.2.2.6 Linear thermal transmittances Ψe,Ψj, Ψt D.2.2.7 Definition of starting point for calculation of thermal transmittance |
| 51 | D.3 Determination of areas of a rooflight D.3.1 Components |
| 52 | D.3.2 Area of the rooflight upstand |
| 53 | D.3.3 Area of the edge profile |
| 55 | D.3.4 Area of the junction part |
| 56 | D.3.5 Area of the translucent part At D.3.6 Surface of the rooflight |
| 57 | D.4 Total thermal transmittance of individual rooflights D.4.1 General |
| 58 | D.4.2 Total thermal transmittance Ur of individual rooflights including the edge profile |
| 59 | D.4.3 Total thermal transmittance Urc of individual rooflights including the edge profile and upstand |
| 61 | D.4.4 Total thermal transmittance Urc of individual rooflights including the edge profile and upstand (alternative method) |
| 62 | D.4.5 Total thermal transmittance Urc of individual rooflights including the upstand without edge profile |
| 64 | D.4.6 Total thermal transmittance Urc of individual rooflights including the edge profile and upstand with more than one translucent part |
| 65 | D.4.7 Rounding off to be used for thermal transmittance in calculation and classification D.5 Test specimen for evaluation of thermal transmittance: Ur,ref, Urc,ref300 D.5.1 General |
| 66 | D.5.2 Reference models D.5.2.1 Individual rooflight without upstand D.5.2.2 Individual rooflight with upstand |
| 67 | D.6 Characteristics for supplied rooflight |
| 68 | Annex E (normative)Reaction to fire test E.1 Class E E.1.1 General E.1.2 Mounting and fixing for the small flame test in accordance to EN ISO 119252 |
| 69 | E.2 Class A2 to class D E.2.1 General E.2.2 Mounting and fixing for the SBI test E.3 Class A1 |
| 70 | Annex ZA (informative)Clauses of this European Standard addressing the provisions of the EU Construction Products Regulation |
