EN 14501:2005
(Main)Blinds and shutters - Thermal and visual comfort - Performance characteristics and classification
Blinds and shutters - Thermal and visual comfort - Performance characteristics and classification
This European Standard applies to the whole range of shutters, awnings and blinds defined in EN 12216, described as solar protection devices in this European Standard.
It states the properties that shall be taken into account when comparing products.
It also specifies the corresponding parameters and classifications to quantify the following properties:
- for the thermal comfort:
- the solar factor (total solar energy transmittance);
- the shading factor;
- the secondary heat transfer factor;
- the direct solar transmittance;
- for the visual comfort:
- the opacity control;
- the night privacy;
- the visual contact with the outside;
- the glare control;
- the daylight utilisation;
- the rendering of colours.
NOTE For other purposes, more detailed methods using different parameters can be used.
Some of the characteristics (e.g. gtot) are not applicable when products are not parallel to the glazing (e.g. folding-arm awnings).
This European Standard is not applicable to the products using fluorescent materials.
Abschlüsse - Thermischer und visueller Komfort - Leistungsanforderungen und Klassifizierung
Diese Europäische Norm gilt für sämtliche Arten von Abschlüssen, Markisen und Jalousien, die in EN 12216 definiert sind und in dieser Europäischen Norm als Sonnenschutzeinrichtungen bezeichnet werden.
In ihr sind die Eigenschaften festgelegt, die bei einem Vergleich von Produkten zu berücksichtigen sind.
Darüber hinaus sind die entsprechenden Parameter und Klassifizierungen zur quantitativen Bestimmung der folgenden Eigenschaften festgelegt:
- Für den thermischen Komfort:
- des Sonnenfaktors (Gesamtenergiedurchlassgrad);
- des sekundären Wärmeabgabegrades nach innen;
- des direkten Transmissionsgrades.
- Für den visuellen Komfort:
- der Regulierung der Lichtdurchlässigkeit;
- des Sichtschutzes bei Nacht;
- des Sichtkontaktes nach außen;
- des Blendschutzes;
- der Tageslichtnutzung;
- des Farbwiedergabeindexes.
ANMERKUNG Für andere Verwendungszwecke können detailliertere Verfahren mit anderen Parametern angewendet werden.
Einige Merkmale (z. B. gtot) sind nicht anwendbar, wenn Produkte nicht parallel zur Verglasung angebracht sind (z. B. Gelenkarmmarkisen).
Diese Europäische Norm ist nicht auf Produkte anwendbar, bei denen fluoreszierende Materialien verwendet werden.
Fermetures et stores - Confort thermique et lumineux - Caractérisation des performances et classification
Rolete in polokna – Toplotno in vizualno ugodje – Delovne karakteristike in klasifikacija
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2006
Rolete in polokna – Toplotno in vizualno ugodje – Delovne karakteristike in
klasifikacija
Blinds and shutters - Thermal and visual comfort - Performance characteristics and
classification
Abschlüsse - Thermischer und visueller Komfort - Leistungsanforderungen und
Klassifizierung
Fermetures et stores - Confort thermique et lumineux - Caractérisation des performances
et classification
Ta slovenski standard je istoveten z: EN 14501:2005
ICS:
91.060.50 Vrata in okna Doors and windows
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 14501
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 91.060.50
English version
Blinds and shutters - Thermal and visual comfort - Performance
characteristics and classification
Fermetures et stores - Confort thermique et lumineux - Abschlüsse - Thermischer und visueller Komfort -
Caractérisation des performances et classification Leistungsanforderungen und Klassifizierung
This European Standard was approved by CEN on 27 June 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 14501:2005: E
worldwide for CEN national Members.
Contents
page
Foreword.3
Introduction .4
1 Scope .4
2 Normative references .5
3 Terms, definitions and symbols.5
4 Notations used.7
4.1 General.7
4.2 Visual or solar properties .7
4.3 Geometry of the radiation .7
4.4 Optical factors.8
5 Thermal comfort.8
5.1 General.8
5.2 Control of solar gains – Total solar energy transmittance g .9
tot
5.3 Secondary heat gains – Secondary heat transfer factor q .11
i, tot
5.4 Protection from direct transmission – Normal/normal solar transmittance ττττ .11
e, n-n
6 Visual comfort.12
6.1 General.12
6.2 Opacity control.14
6.3 Glare control.14
6.4 Night privacy .16
6.5 Visual contact with the outside.16
6.6 Daylight utilisation.17
6.7 Rendering of colours.18
Annex A (normative) Reference glazings.19
A.1 General.19
A.2 Glazing A .19
A.3 Glazing B .19
A.4 Glazing C .20
A.5 Glazing D .21
Annex B (informative) The meaning of the secondary internal heat transfer factor q .22
i, tot
Annex C (informative) Example of performance presentation .23
C.1 Thermal comfort.23
C.2 Visual comfort.24
Bibliography .25
Foreword
This European Standard (EN 14501:2005) 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 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 February 2006, and conflicting national standards shall be withdrawn at the latest
by February 2006.
No existing European Standard is superseded.
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.
Introduction
This European Standard is a part of a series of standards dealing with blinds and shutters for buildings as defined
in EN 12216.
The methods of characterisation are related to performance requirements required as a complement to intrinsic
performances (specific requirements) that internal blinds, external blinds or shutters shall fulfil as specified in
EN 13120, EN 13561 and EN 13659.
The present European Standard is mainly based on the European work performed in TC 89 relating to solar and
light transmittance of solar protection devices combined with glazing and the Technical Report CIE 130.
1 Scope
This European Standard applies to the whole range of shutters, awnings and blinds defined in EN 12216,
described as solar protection devices in this European Standard.
It states the properties that shall be taken into account when comparing products.
It also specifies the corresponding parameters and classifications to quantify the following properties:
for the thermal comfort:
the solar factor (total solar energy transmittance);
the secondary heat transfer factor;
the direct solar transmittance;
for the visual comfort:
the opacity control;
the night privacy;
the visual contact with the outside;
the glare control;
the daylight utilisation;
the rendering of colours.
NOTE For other purposes, more detailed methods using different parameters can be used.
Some of the characteristics (e.g. g ) are not applicable when products are not parallel to the glazing (e.g. folding-
tot
arm awnings).
This European Standard is not applicable to the products using fluorescent materials.
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. 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 12216:2002, Shutters, external blinds, internal blinds — Terminology, glossary and definitions
EN 13363-1, Solar protection devices combined with glazing — Calculation of solar and light transmittance — Part
1: Simplified method
EN 13363-2:2005, Solar protection devices combined with glazing — Calculation of total solar energy
transmittance and light transmittance — Part 2: Detailed calculation method
prEN 14500 , Blinds and shutters — Thermal and visual comfort — Test methods
3 Terms, definitions and symbols
For the purposes of this European Standard, the terms and definitions given in EN 12216:2002 and the following
apply.
3.1
transmittance ττττ
ratio of the transmitted flux to the incident flux (see Figure 1)
NOTE A more detailed definition is given in prEN 14500.
3.2
reflectance ρρ
ρρ
ratio of the reflected flux to the incident flux (see Figure 1)
NOTE A more detailed definition is given in prEN 14500.
3.3
absorptance αααα
ratio of the absorbed flux to the incident flux (see Figure 1)
To be published.
Key
1 Solar protection device
2 Incident radiation E
3 Transmitted radiation τ × E
4 Absorbed radiation α × E
5 Reflected radiation ρ × E
Figure 1 — Representation of the optical factors
3.4
openness coefficient
ratio between the area of the openings and the total area of the fabric
NOTE 1 For identical fabrics that differ only by the colour, the openness coefficient is considered as independent of the colour.
The value of the openness coefficient should be measured for the darkest colour.
NOTE 2 The openness coefficient is determined according to prEN 14500.
3.5
solar factor g (total solar energy transmittance)
ratio between the total solar energy transmitted into a room through a window and the incident solar energy on the
window
g is the solar factor of the glazing alone
g is the solar factor of the combination of glazing and solar protection device
tot
3.6
shading factor F
c
ratio of the solar factor of the combined glazing and solar protection device g to that of the glazing alone g
tot
g
tot
F =
c
g
NOTE In some countries, F is known as z
c
3.7
secondary internal heat transfer factor q
i, tot
the part of the total absorbed radiation which is flowing inwards through the glazing and the shading device
combined
3.8
colour rendering index R
a
index designed to express synthetically a quantitative evaluation of the differences in colour between eight test
colours lit directly by the standard illuminant D and by the same illuminant transmitted through the solar protection
device
3.9
operative temperature θ
op
uniform temperature of a room in which an occupant would exchange the same amount of heat by radiation plus
convection as in the actual non-uniform environment
NOTE For more information on the calculation of θ it is recommended to refer to EN ISO 13791 or EN ISO 13792.
op,
4 Notations used
4.1 General
For the purpose of this European Standard, the optical factors τ (transmittance), ρ (reflectance) and α
(absorptance) are labelled with subscripts which indicate:
visual or solar properties;
the geometry of the incident and the transmitted or reflected radiation.
4.2 Visual or solar properties
According to the respective spectrum the following subscripts are used:
« » solar (energetic) charac
...
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