oSIST prEN 13420:2006

SLOVENSKI oSIST prEN 13420:2006

PREDSTANDARD
marec 2006
Okna – Obnašanje med dvema različnima klimama – Preskusna metoda
Windows – Behaviour between different climates – Test method
ICS 91.060.50 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2006
ICS Will supersede ENV 13420:2000
English Version
Windows - Behaviour between different climates - Test method
Fenêtres - Comportement entre climats différents -
Méthode d'essai
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 33.
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 Management Centre has the same
status as the official versions.
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.
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
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13420:2006: E
worldwide for CEN national Members.

Contents Page
Foreword. 3
Introduction . 4
1 Scope . 4
2 Normative references . 4
3 Terms and definitions. 5
4 Principle of test. 5
5 Test facility. 6
6 Dimensions of the test specimens. 6
7 Preparation for test. 6
8 Test conditions. 6
9 Test methods. 7
10 Test sequence . 8
11 Test report . 9
Annex A (informative) Design principles . 10
Annex B (informative) Survey of general design criteria where tests are not necessary. 11

Foreword
This document (prEN 13420:2006) has been prepared by Technical Committee CEN/TC 33 “Doors, windows,
shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry in order to convert ENV 13050: 2000 into an EN by a
CEN enquiry + formal vote.
This document will supersede ENV 13420:2000.
The contents of this draft is exactly the same that the contents of ENV 13420: 2000. Only the normative
references were updated.
Introduction
Through climatic loading of the windows it is possible in the case of unfavourable designs that the frames of
windows manufactured of different materials may
- decay through accumulation of moisture and may thus be damaged; this moisture may come from water
vapour diffusion and condensation;
- be unable to fulfill their basic functions (serviceability, air permeability) because of unacceptable
deformations.
This Standard defines the test procedures which are to be used in dependence of the potential risk of the design.

1 Scope
This European Standard specifies the test methods for evaluating

– the risks of decay of windows manufactured of different materials through increased moisture accumulation as a
result of condensation or water vapour diffusion;
– the influence of deformation on basic performances of windows manufactured of different materials exposed to
different climates between their external and internal faces.

Three test methods are to be differentiated. They take into account different cases of loadings.

Test method 1: For designs with low resistance to water vapour diffusion (normally designs with water vapour
equalization holes); the test procedure is to be used for cross-sections where the danger is given by the moisture
accumulation as a result of the condensation of moisture between the planking and the timber (see informative
Annex A, Figure A.1).
Test method 2: For designs with high resistance to water vapour diffusion (normally designs without water vapour
equalization holes); the test procedure is to be used for cross-sections where the danger is given by the moisture
accumulation as a result of water vapour diffusion of the moisture at the internal and external face (see informative
Annex A, Figure A.2 + A.3).
Test method 3: For designs being sensitive to deformation; the test procedure is to be used for cross-sections
where they are sensitive to the function through deformation as a result of climatic loading.

This Standard is relevant to initial type testing, i. e. to developments or changes in designs. It is not relevant to
routine quality control or to proven designs.

NOTE Designs are included in Annex A, Annex B is the survey of general design criteria where tests are not
necessary.
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 1026, Windows and doors – Air permeability – Test method
EN 1121, Doors - Behaviour between two different climates – Test method
EN 12046-1, Operating forces – Test method – Part 1: windows
EN 12519:2004, Windows and pedestrian doors – Terminology
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 12519:2004 and the following
apply.
3.1
designs with low resistance to water vapour diffusion
a design is regarded as being a design with low water vapour diffusion when moisture conditioned by water vapour
diffusion can be drained in the cross-section in a controlled way under specified service conditions, e. g. through
sufficient ventilation.
3.2
designs with high resistance to water vapour diffusion
a design is regarded as being a design with high resistance to water vapour diffusion when as a result of profile
coverings a sufficient draining of the moisture conditioned by water vapour diffusion is impaired in the
...