SIST EN ISO 12567-2:2006
(Main)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)
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)
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; - effects of air leakage through the specimen.
Wärmetechnisches Verhalten von Fenstern und Türen - Bestimmung des Wärmedurchgangskoeffizienten mittels des Heizkastenverfahrens - Teil 2: Dachflächenfenster und andere auskragende Fenster (ISO 12567-2:2005)
Dieser Teil von ISO 12567 legt ein Verfahren zur Messung des Wärmedurchgangskoeffizienten von Dachflächenfenstern und auskragenden Fenstern fest.
Folgendes wird in ihr nicht behandelt:
- Randeinflüsse außerhalb des Umfangs des Probekörpers;
- Energieübertragung durch Sonneneinstrahlung auf den Probekörper;
- Wirkungen durch Luftundichtigkeit des Probekörpers.
Isolation thermique des fenetres et portes - Détermination de la transmission thermique par la méthode a la boîte chaude - Partie 2: Fenetres de toit et autres fenetres en saillie (ISO 12567-2:2005)
L'ISO 12567-2:2005 spécifie une méthode pour mesurer le coefficient de transmission thermique des fenêtres de toit et des fenêtres en saillie. Les paramètres suivants ne sont pas pris en compte: les effets de bord à l'extérieur du périmètre de l'éprouvette, le transfert d'énergie dû au rayonnement solaire sur l'éprouvette et les effets dus aux fuites d'air au travers de l'éprouvette.
Toplotne lastnosti oken in vrat – Ugotavljanje toplotne prehodnosti z metodo komorne naprave – 2. del: Strešna okna in druga izbočena okna (ISO 12567-2:2005)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 12567-2:2006
01-maj-2006
7RSORWQHODVWQRVWLRNHQLQYUDW±8JRWDYOMDQMHWRSORWQHSUHKRGQRVWL]PHWRGR
NRPRUQHQDSUDYH±GHO 6WUHãQDRNQDLQGUXJDL]ERþHQDRNQD ,62
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)
Wärmetechnisches Verhalten von Fenstern und Türen - Bestimmung des
Wärmedurchgangskoeffizienten mittels des Heizkastenverfahrens - Teil 2:
Dachflächenfenster und andere auskragende Fenster (ISO 12567-2:2005)
Isolation thermique des fenetres et portes - Détermination de la transmission thermique
par la méthode a la boîte chaude - Partie 2: Fenetres de toit et autres fenetres en saillie
(ISO 12567-2:2005)
Ta slovenski standard je istoveten z: EN ISO 12567-2:2005
ICS:
91.060.50 Vrata in okna Doors and windows
91.120.10 Toplotna izolacija stavb Thermal insulation
SIST EN ISO 12567-2:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 12567-2:2006
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SIST EN ISO 12567-2:2006
EUROPEAN STANDARD
EN ISO 12567-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2005
ICS 91.120.10; 91.060.50
English Version
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)
Isolation thermique des fenêtres et portes - Détermination Wärmetechnisches Verhalten von Fenstern und Türen -
de la transmission thermique par la méthode à la boîte Bestimmung des Wärmedurchgangskoeffizienten des
chaude - Partie 2: Fenêtres de toit et autres fenêtres en Heizkastenverfahrens - Teil 2: Dachflächenfenster und
saillie (ISO 12567-2:2005) andere auskragende Fenster (ISO 12567-2:2005)
This European Standard was approved by CEN on 14 October 2005.
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. Up-to-date lists and bibliographical references concerning such national
standards 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 translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat 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, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 12567-2:2005: E
worldwide for CEN national Members.
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SIST EN ISO 12567-2:2006
EN ISO 12567-2:2005 (E)
Foreword
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", 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 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, Luxembourg, 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.
2
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SIST EN ISO 12567-2:2006
INTERNATIONAL ISO
STANDARD 12567-2
First edition
2005-10-15
Thermal performance of windows and
doors — Determination of thermal
transmittance by hot box method —
Part 2:
Roof windows and other projecting
windows
Isolation thermique des fenêtres et portes — Détermination de la
transmission thermique par la méthode à la boîte chaude —
Partie 2: Fenêtres de toit et autres fenêtres en saillie
Reference number
ISO 12567-2:2005(E)
©
ISO 2005
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
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ii © ISO 2005 – All rights reserved
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
Contents 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 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
Annex C (informative) Example of calibration test and measurement of a roof window specimen. 16
Bibliography . 25
© ISO 2005 – All rights reserved iii
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing 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 liaison 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 technical 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 drawn 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 environment, 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 windows.
iv © ISO 2005 – All rights reserved
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
Introduction
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 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 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 vertically 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 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.
© ISO 2005 – All rights reserved v
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SIST EN ISO 12567-2:2006
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SIST EN ISO 12567-2:2006
INTERNATIONAL STANDARD ISO 12567-2:2005(E)
Thermal performance of windows and doors — Determination
of thermal transmittance by hot box method —
Part 2:
Roof windows 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;
⎯ 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 amendments) 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 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 surface of the building envelope
© ISO 2005 – All rights reserved 1
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
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 measurement 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 the 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 products 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 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 specimen shall be mounted in the surround panel aperture according to the manufacturer's
instructions. If the method of installation of the roof window in the hot box cannot be unambiguously
determined from the manufacturer's installation instructions, the window shall be installed as shown in
Figure 1. Flashings and/or kerb (curb) shall be included as the windows are normally installed (see Figure 1).
NOTE Kerb and curb are synonymous.
2 © ISO 2005 – All rights reserved
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
Dimensions in millimetres
Key
1 border of metering area
2 surround panel, λ u 0.04 W/(m⋅K)
3 glazing
4 cold side
5 warm side
6 to be sealed with non-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)
© ISO 2005 – All rights reserved 3
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
5.3 Calibration panels
The calibration panels or CTS (calibration transfer standard) 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
4 © ISO 2005 – All rights reserved
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
5.4 Baffle position
The 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
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
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SIST EN ISO 12567-2:2006
ISO 12567-2:2005(E)
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 data for the surround panel thermal resistance R have been already measured according to
sur
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, Φ , between calibration panel and surround panel [ISO 12567-1:2000,
edge
Equation (10)], values for the linear thermal transmittance of the edge zone, ψ , are given in Table B.1.
edge
6.3 Specimen measurements
After installation of the test specimen, the air velocity on the cold side shall be adjusted to give the same air
velocity (within ± 10 %) as found with the calibration panel, when setting the total surface thermal resistance,
R . For the determination of Φ , the heat flow rate through the edge zone between test specimen and
s,tedge
surround panel [Equation (10)], values for the linear thermal transmittance of the edge zone, ψ , are given
edge
in Table B.2 (insert mounting) and in Table B.3 (kerb mounting).
The specimen area A is the area of the aperture in the surround panel.
sp
6.4 Expression of results
The result is expressed as given in ISO 12567-1:2000, 6.3. For projecting products, no correction is made for
the effect of the density of heat flow rate, q, on the total surface resistance, R , as specified in
s,t
ISO 12567-1:2000, 6.3.
An example of a calibration measurement and roof window test is given in Annex C.
7 Test report
The test report shall contain the information specified in ISO 12567-1:2000. In addition, the following shall be
stated:
a) inclination of the tested window;
b) all details (see Annex C) of how the specimen was installed in the surround panel, including the area of
the specimen A , used to calculate the thermal transmittance.
sp
NOTE The thermal transmittance, as measured with the window in the
...
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