1、BRITISH STANDARDBS EN ISO 12567-2:2005Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 2: Roof windows and other projecting windowsThe European Standard EN ISO 12567-2:2005 has the status of a British StandardICS 91.120.10; 91.060.50g49g50g3g38g5
2、0g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 12567-2:2005This British Standard was published under the authority of the Standards Policy and Strateg
3、y Committee on 23 January 2006 BSI 23 January 2006ISBN 0 580 46823 2National forewordThis British Standard is the official English language version of EN ISO 12567-2:2005. It is identical with ISO 12567-2:2005.The UK participation in its preparation was entrusted to Technical Committee B/540, Energy
4、 performance of materials components and buildings, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this docu
5、ment may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract.
6、Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for cha
7、nge, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, p
8、ages 1 to 25 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 12567-2October 2005ICS 91.120.10; 91.060.50English VersionTherm
9、al performance of windows and doors - Determination ofthermal transmittance by hot box method - Part 2: Roof windowsand other projecting windows (ISO 12567-2:2005)Isolation thermique des fentres et portes - Dterminationde la transmission thermique par la mthode la botechaude - Partie 2: Fentres de t
10、oit et autres fentres ensaillie (ISO 12567-2:2005)Wrmetechnisches Verhalten von Fenstern und Tren -Bestimmung des Wrmedurchgangskoeffizienten desHeizkastenverfahrens - Teil 2: Dachflchenfenster undandere auskragende Fenster (ISO 12567-2:2005)This European Standard was approved by CEN on 14 October 2
11、005.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
12、 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 h
13、as 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, Slov
14、akia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for
15、 CEN national Members.Ref. No. EN ISO 12567-2:2005: EEN ISO 12567-2:2005Foreword This document (EN ISO 12567-2:2005) has been prepared by Technical Committee ISO/TC 163 “Thermal insulation“ in collaboration with Technical Committee CEN/TC 89 “Thermal performance of buildings and building components“
16、, the secretariat of which is held by SIS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. According
17、to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, L
18、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 12567-2:2005 has been approved by CEN as EN ISO 12567-2:2005 without any modifications. Reference numberISO 12567-2:2005(E)INTERNATIONAL STAN
19、DARD ISO12567-2First edition2005-10-15Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 2: Roof windows and other projecting windows Isolation thermique des fentres et portes Dtermination de la transmission thermique par la mthode la bote chaude P
20、artie 2: Fentres de toit et autres fentres en saillie EN ISO 12567-2:2005ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Principle. 2 5 Requirements for test specimens and apparatus . 2 5.1 General. 2 5.2 Test specimen location 2 5.3
21、 Calibration panels. 4 5.4 Baffle position . 5 6 Procedure 6 6.1 General. 6 6.2 Calibration measurements. 6 6.3 Specimen measurements 6 6.4 Expression of results . 6 7 Test report . 6 Annex A (normative) Environmental temperature 7 Annex B (normative) Linear thermal transmittance of the edge zone 11
22、 Annex C (informative) Example of calibration test and measurement of a roof window specimen 16 Bibliography . 25 EN ISO 12567-2:2005iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
23、International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaiso
24、n with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of tec
25、hnical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is dra
26、wn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 12567-2 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environme
27、nt, Subcommittee SC 1, Test and measurement methods. ISO 12567 consists of the following parts, under the general title Thermal performance of windows and doors Determination of thermal transmittance by hot box method: Part 1: Complete windows and doors Part 2: Roof windows and other projecting wind
28、ows. EN ISO 12567-2:2005vIntroduction This part of ISO 12567 should be read together with ISO 12567-1:2000 Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 1: Complete windows and doors. These two parts were jointly developed by ISO and CEN. They
29、 are designed to provide standardised thermal transmittance test values, to enable product comparisons to be made. ISO 12567-1:2000 specifies standardised specimen sizes and applied test criteria. It is recognised that the thermal performance of products will vary with heat flow direction and so it
30、is preferable to test these products at the orientation in which they will be installed. However, as there are only a few hot boxes capable of carrying out such measurements, this measurement procedure specifies that it is acceptable to measure the thermal transmittance of roof windows mounted verti
31、cally to facilitate the fair comparison of products. It should be noted that measurements with the specimen mounted vertically will generally produce U-values lower than those measured at other orientations with heat flow up. An alternative to measuring at the actual orientation that will be used in
32、 practice is to carry out calculations of convective and radiant heat transfer using the procedures specified in ISO 15099, ISO 10077-1, ISO 10077-2 and EN 673. EN ISO 12567-2:2005blank1Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 2: Roof win
33、dows and other projecting windows 1 Scope This part of ISO 12567 specifies a method to measure the thermal transmittance of roof windows and projecting windows. It does not include: edge effects occurring outside the perimeter of the specimen; energy transfer due to solar radiation on the specimen;
34、effects of air leakage through the specimen. 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 am
35、endments) applies. ISO 7345:1987, Thermal insulation Physical quantities and definitions ISO 8990:1994, Thermal insulation Determination of steady-state thermal transmission properties Calibrated and guarded hot box ISO 12567-1:2000, Thermal performance of windows and doors Determination of thermal
36、transmittance by hot box method Part 1: Complete windows and doors 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 7345 and ISO 12567-1 and the following apply. 3.1 projecting windows product, where any glazing layer projects beyond the outside surfa
37、ce of the building envelope EN ISO 12567-2:20052 3.2 roof windows any framed glazed product installed in a sloped or horizontal building envelope NOTE 1 Roof windows are treated as projecting windows. NOTE 2 See also Reference 1 in Bibliography. 4 Principle This part of ISO 12567 is based on a measu
38、rement procedure for roof windows and other projecting windows, in accordance with the procedure specified in ISO 12567-1:2000, except for the deviations specified below: the window is installed in the surround panel flush to the cold side (insert- or kerb-mounted as shown in Figure 1), to reflect t
39、he installation in practice; the calibration procedure and the specimen tests shall be carried out at the same orientation; for practical reasons, vertical mounting of the specimen is acceptable for product declaration purpose. Although the evaluation of the thermal performance of these types of pro
40、ducts will be made for a variety of reasons, it is important that when measurements are made for purposes of product comparison, they are carried out at the same orientation. NOTE For building load or energy calculations, the value may be corrected for the effect of the sloped glazing position using
41、 suitable national procedures. 5 Requirements for test specimens and apparatus 5.1 General The construction and operation of the apparatus shall comply with the requirements specified in ISO 8990:1994 except where modified by ISO 12567-1:2000 and this document. 5.2 Test specimen location The test sp
42、ecimen shall be mounted in the surround panel aperture according to the manufacturers instructions. If the method of installation of the roof window in the hot box cannot be unambiguously determined from the manufacturers installation instructions, the window shall be installed as shown in Figure 1.
43、 Flashings and/or kerb (curb) shall be included as the windows are normally installed (see Figure 1). NOTE Kerb and curb are synonymous. EN ISO 12567-2:20053Dimensions in millimetres Key 1 border of metering area 2 surround panel, u 0.04 W/(mK) 3 glazing 4 cold side 5 warm side 6 to be sealed with n
44、on-metallic tape or mastic material 7 flashing 8 kerb-mounted roof window 9 insert-mounted roof window Figure 1 Roof window in surround panel (top part: insert-mounted; bottom part: kerb-mounted) EN ISO 12567-2:20054 5.3 Calibration panels The calibration panels or CTS (calibration transfer standard
45、) shall be mounted in the surround panel aperture flush with the cold face as shown in Figure 2. Dimensions in millimetres Key 1 surround panel 2 boundary effects 3 cold side 4 warm side 5 calibration panel Figure 2 Mounting of calibration panel in aperture EN ISO 12567-2:200555.4 Baffle position Th
46、e distance between the baffle on the cold side and the glazing of the test specimen shall not be less than 80 mm, see Figure 3. For air speeds greater than 2 m/s, the distance between baffle and specimen shall be greater than 80 mm in order to ensure free stream conditions. Dimensions in millimetres
47、 a) Vertical section b) Face elevation Key 1 cold side baffle 2 warm side baffle 3 all surround panel thermocouples located centrally 4 air temperature sensors 5 recommended position of air speed sensor aligned in the centre Figure 3 Location of temperature sensors and air speed sensor EN ISO 12567-
48、2:20056 6 Procedure 6.1 General The measurement shall be carried out under the conditions specified in ISO 12567-1:2000, except for the deviations indicated in 6.2, 6.3 and 6.4. 6.2 Calibration measurements Calibration measurements shall be made according to ISO 12567-1:2000, 6.2. If calibration dat
49、a for the surround panel thermal resistance Rsurhave been already measured according to ISO 12567-1:2000, the calibration results may be used. The notation for determination of the environmental temperature for roof or projecting windows according to the procedure indicated in ISO 12567-1:2000 is given in Figure A.1. For the determination of the heat flow rate through the edge zone, edge, between calibration panel and surround panel ISO 12567-1:2000, Equation (10), values for the linear thermal tra
