![header thumbnail](/images/img-default-logo.png)
EN 674:2011
Current
The latest, up-to-date edition.
![header thumbnail](/images/img-default-logo.png)
Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method
15-06-2011
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Basic formula
5 Brief outline of the measuring procedure
6 Test apparatus
7 Dimensions of the specimens
8 Preparation of the specimens
9 Performance of the measurements
10 Evaluation of the results
11 Expression of the results
12 Test report
Bibliography
This European Standard specifies a measurement method to determine the thermal transmittance of glazing with flat and parallel surfaces. Structured surfaces, e.g. patterned glass, can be considered to be flat.This European Standard applies to multiple glazing with outer panes which are not transparent to far infrared radiation, which is the case for soda lime silicate glass products, borosilicate glass and glass ceramics. Internal elements may be far infrared transparent.The procedure specified in this European Standard determines the U value ) (thermal transmittance) in the central area of glazing. The edge effects, due to the thermal bridge through the spacer of an insulating glass unit or through the window frame are not included. Furthermore energy transfer due to solar radiation is not taken into account.The procedure specified in this European Standard should generally only be considered when the calculation method detailed in EN 673 is inappropriate or unsuitable.The document for the calculation of the overall U value of windows, doors and shutters (see [3]) gives normative reference to the U value evaluated for the glazing components according to this standard.A vertical position of the glazing is specified.U values evaluated according to the present standard are used for product comparison as well as for other purposes, in particular for predicting:-heat loss through glazing;-conduction heat gains in summer;-condensation on glazing surfaces;-the effects of the absorbed solar radiation in determining the solar factor (see [1]).Reference should be made to [4], [5], or other European Standards dealing with heat loss calculations for the application of glazing U values determined by this standard.The determination of the thermal transmittance is performed for conditions which correspond to the average situation for glazing in practice.
Committee |
CEN/TC 129
|
DocumentType |
Standard
|
PublisherName |
Comite Europeen de Normalisation
|
Status |
Current
|
Standards | Relationship |
UNE-EN 674:1998 | Identical |
DIN EN 674:2011-09 | Identical |
PN EN 674 : 2011 | Identical |
BS EN 674:2011 | Identical |
I.S. EN 674:2011 | Identical |
NBN EN 674 : 2011 | Identical |
NEN EN 674 : 2011 | Identical |
SN EN 674 : 2011 | Identical |
SN EN 764 : 1995 | Identical |
NF EN 674 : 2011 | Identical |
NS EN 674 : 2011 | Identical |
UNI EN 674 : 2011 | Identical |
UNE-EN 674:2011 | Identical |
01/105397 DC : DRAFT JULY 2001 | PREN 1748-1-2 - GLASS IN BUILDING - SPECIAL BASIC PRODUCTS - PART 1-2: BOROSILICATE GLASS - EVALUATION OF CONFORMITY |
04/30113929 DC : DRAFT MAY 2004 | EN ISO 10077-1 - THERMAL PERFORMANCE OF WINDOWS, DOORS AND SHUTTERS - CALCULATION OF THERMAL TRANSMITTANCE - PART 1: GENERAL |
DIN EN 14963 E : 2006 | ROOF COVERINGS - CONTINUOUS ROOFLIGHTS OF PLASTICS WITH OR WITHOUT UPSTANDS - CLASSIFICATION, REQUIREMENTS AND TEST METHODS |
I.S. EN ISO 12631:2017 | THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE (ISO 12631:2017) |
ISO 10077-1:2017 | Thermal performance of windows, doors and shutters — Calculation of thermal transmittance — Part 1: General |
I.S. EN ISO 52018-1:2017 | ENERGY PERFORMANCE OF BUILDINGS - INDICATORS FOR PARTIAL EPB REQUIREMENTS RELATED TO THERMAL ENERGY BALANCE AND FABRIC FEATURES - PART 1: OVERVIEW OF OPTIONS (ISO 52018-1:2017) |
BS EN 16153 : 2013 | LIGHT TRANSMITTING FLAT MULTIWALL POLYCARBONATE (PC) SHEETS FOR INTERNAL AND EXTERNAL USE IN ROOFS, WALLS AND CEILINGS - REQUIREMENTS AND TEST METHODS |
ISO 52022-1:2017 | Energy performance of buildings — Thermal, solar and daylight properties of building components and elements — Part 1: Simplified calculation method of the solar and daylight characteristics for solar protection devices combined with glazing |
UNI EN 1279-5 : 2010 | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
I.S. EN 14963:2006 | ROOF COVERINGS - CONTINUOUS ROOFLIGHTS OF PLASTICS WITH OR WITHOUT UPSTANDS - CLASSIFICATION, REQUIREMENTS AND TEST METHODS |
UNE-EN ISO 10077-1:2010 | Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General |
BS EN 1096-1:2012 | Glass in building. Coated glass Definitions and classification |
BS EN 673:2011 | Glass in building. Determination of thermal transmittance (U value). Calculation method |
BS EN 1873 : 2014 | PREFABRICATED ACCESSORIES FOR ROOFING - INDIVIDUAL ROOFLIGHTS OF PLASTICS - PRODUCT SPECIFICATION AND TEST METHODS |
DIN EN 13947:2007-03 | THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
UNE-EN 410:2011 | Glass in building - Determination of luminous and solar characteristics of glazing |
DIN EN ISO 14438:2002-09 | GLASS IN BUILDING - DETERMINATION OF ENERGY BALANCE VALUE - CALCULATION METHOD |
01/105399 DC : DRAFT JULY 2001 | PREN 14178-2 - GLASS IN BUILDING - BASIC ALKALINE EARTH SILICATE GLASS PRODUCTS - PART 2: EVALUATION OF CONFORMITY |
BS EN 50583-1:2016 | Photovoltaics in buildings BIPV modules |
BS EN ISO 12631:2017 | Thermal performance of curtain walling. Calculation of thermal transmittance |
01/108539 DC : DRAFT NOV 2001 | PREN 572-9 - GLASS IN BUILDING - BASIC SODA LIME SILICATE GLASS - PART 9: EVALUATION OF CONFORMITY |
I.S. EN 12898:2001 | GLASS IN BUILDING - DETERMINATION OF THE EMISSIVITY |
ISO 12631:2017 | Thermal performance of curtain walling — Calculation of thermal transmittance |
15/30319715 DC : 0 | BS EN 1279-5 - GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
EN ISO 52022-1:2017 | Energy performance of buildings - Thermal, solar and daylight properties of building components and elements - Part 1: Simplified calculation method of the solar and daylight characteristics for solar protection devices combined with glazing (ISO 52022-1:2017) |
DIN EN 1279-5:2015-08 (Draft) | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
I.S. EN 673:2011 | GLASS IN BUILDING - DETERMINATION OF THERMAL TRANSMITTANCE (U VALUE) - CALCULATION METHOD |
I.S. EN 1873:2014 | PREFABRICATED ACCESSORIES FOR ROOFING - INDIVIDUAL ROOFLIGHTS OF PLASTICS - PRODUCT SPECIFICATION AND TEST METHODS |
I.S. EN 410:2011 | GLASS IN BUILDING - DETERMINATION OF LUMINOUS AND SOLAR CHARACTERISTICS OF GLAZING |
DIN EN 1873:2016-07 | PREFABRICATED ACCESSORIES FOR ROOFING - INDIVIDUAL ROOFLIGHTS OF PLASTICS - PRODUCT SPECIFICATION AND TEST METHODS |
I.S. EN 1096-1:2012 | GLASS IN BUILDING - COATED GLASS - PART 1: DEFINITIONS AND CLASSIFICATION |
UNE-EN 13947:2011 | Thermal performance of curtain walling - Calculation of thermal transmittance |
02/103123 DC : DRAFT APR 2002 | BS EN 14449 - GLASS IN BUILDING - LAMINATED GLASS AND LAMINATED SAFETY GLASS - EVALUATION OF CONFORMITY |
EN 1279-5:2005+A2:2010 | Glass in building - Insulating glass units - Part 5: Evaluation of conformity |
EN 12898:2001 | Glass in building - Determination of the emissivity |
BS EN ISO 52018-1:2017 | Energy performance of buildings. Indicators for partial EPB requirements related to thermal energy balance and fabric features Overview of options |
16/30310958 DC : 0 | BS EN ISO 12631 - THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
11/30244795 DC : 0 | BS EN 1096-1 - GLASS IN BUILDING - COATED GLASS - PART 1: DEFINITIONS AND CLASSIFICATION |
12/30266506 DC : 0 | BS EN 50583 - PHOTOVOLTAICS IN BUILDINGS |
00/106948 DC : DRAFT OCT 2000 | PREN 13947 - THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
DIN EN 14963:2006-12 | Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methods |
DIN EN 16153:2015-05 | LIGHT TRANSMITTING FLAT MULTIWALL POLYCARBONATE (PC) SHEETS FOR INTERNAL AND EXTERNAL USE IN ROOFS, WALLS AND CEILINGS - REQUIREMENTS AND TEST METHODS |
NF EN 1279-5 : 2005 + A2 2010 | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
PREN 1279-5 : DRAFT 2015 | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
ISO 52018-1:2017 | Energy performance of buildings — Indicators for partial EPB requirements related to thermal energy balance and fabric features — Part 1: Overview of options |
I.S. EN 1279-5:2005 | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
DIN EN 673:2011-04 | Glass in building - Determination of thermal transmittance (U value) - Calculation method |
DIN EN 410:2011-04 | Glass in building - Determination of luminous and solar characteristics of glazing |
BS EN 410:2011 | Glass in building. Determination of luminous and solar characteristics of glazing |
EN 673:2011 | Glass in building - Determination of thermal transmittance (U value) - Calculation method |
UNI EN 673 : 2011 | GLASS IN BUILDING - DETERMINATION OF THERMAL TRANSMITTANCE (U VALUE) - CALCULATION METHOD |
UNI EN 1096-1 : 2012 | Glass in building - Coated glass - Part 1: Definitions and classification |
UNI EN 410 : 2011 | GLASS IN BUILDING - DETERMINATION OF LUMINOUS AND SOLAR CHARACTERISTICS OF GLAZING |
06/30149044 DC : DRAFT APR 2006 | EN 13947 - THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
15/30312819 DC : 0 | BS EN ISO 52022-1 - ENERGY PERFORMANCE OF BUILDINGS - THERMAL, SOLAR AND DAYLIGHT PROPERTIES OF BUILDING COMPONENTS AND ELEMENTS - PART 1: SIMPLIFIED CALCULATION METHOD OF THE SOLAR AND DAYLIGHT CHARACTERISTICS FOR SOLAR PROTECTION DEVICES COMBINED WITH GLAZING |
I.S. EN ISO 10077-1:2017 | THERMAL PERFORMANCE OF WINDOWS, DOORS AND SHUTTERS - CALCULATION OF THERMAL TRANSMITTANCE - PART 1: GENERAL (ISO 10077-1:2017) |
PREN 50583 : DRAFT 2012 | PHOTOVOLTAICS IN BUILDINGS |
BS EN ISO 52022-1:2017 | Energy performance of buildings. Thermal, solar and daylight properties of building components and elements Simplified calculation method of the solar and daylight characteristics for solar protection devices combined with glazing |
01/105398 DC : DRAFT JULY 2001 | PREN 1748-2-2 - GLASS IN BUILDING - SPECIAL BASIC PRODUCT - PART 2-2: GLASS CERAMIC - EVALUATION OF CONFORMITY |
I.S. EN ISO 52022-1:2017 | ENERGY PERFORMANCE OF BUILDINGS - THERMAL, SOLAR AND DAYLIGHT PROPERTIES OF BUILDING COMPONENTS AND ELEMENTS - PART 1: SIMPLIFIED CALCULATION METHOD OF THE SOLAR AND DAYLIGHT CHARACTERISTICS FOR SOLAR PROTECTION DEVICES COMBINED WITH GLAZING (ISO 52022-1:2017) |
I.S. EN 50583-1:2016 | PHOTOVOLTAICS IN BUILDINGS - PART 1: BIPV MODULES |
PREN 13031-1 : DRAFT 2017 | GREENHOUSES - DESIGN AND CONSTRUCTION - PART 1: COMMERCIAL PRODUCTION GREENHOUSES |
UNE-EN 1096-1:2012 | Glass in building - Coated glass - Part 1: Definitions and classification |
BS EN 13947:2006 | Thermal performance of curtain walling. Calculation of thermal transmittance |
BS EN 13363-1 : 2003 | SOLAR PROTECTION DEVICES COMBINED WITH GLAZING - CALCULATION OF SOLAR AND LIGHT TRANSMITTANCE - PART 1: SIMPLIFIED METHOD |
BS EN ISO 14438:2002 | Glass in building. Determination of energy balance value. Calculation method |
ISO 14438:2002 | Glass in building — Determination of energy balance value — Calculation method |
UNE EN 410 : 2011 | GLASS IN BUILDING - DETERMINATION OF LUMINOUS AND SOLAR CHARACTERISTICS OF GLAZING |
UNE-EN 1873:2015 | Prefabricated accessories for roofing - Individual rooflights of plastics - Product specification and test methods |
EN ISO 10077-1:2017 | Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General (ISO 10077-1:2017, Corrected version 2020-02) |
EN 13947:2006 | Thermal performance of curtain walling - Calculation of thermal transmittance |
EN 16153:2013+A1:2015 | Light transmitting flat multiwall polycarbonate (PC) sheets for internal and external use in roofs, walls and ceilings - Requirements and test methods |
EN 14963:2006 | Roof coverings - Continuous rooflights of plastics with or without upstands - Classification, requirements and test methods |
EN ISO 14438:2002 | Glass in building - Determination of energy balance value - Calculation method (ISO 14438:2002) |
EN 1873:2014+A1:2016 | Prefabricated accessories for roofing - Individual rooflights of plastics - Product specification and test methods |
EN 410:2011 | Glass in building - Determination of luminous and solar characteristics of glazing |
EN ISO 12631:2017 | Thermal performance of curtain walling - Calculation of thermal transmittance (ISO 12631:2017) |
BS EN 14963:2006 | Roof coverings. Continuous rooflights of plastics with or without upstands. Classification, requirements and test methods |
PREN 1096-1 : DRAFT 2011 | GLASS IN BUILDING - COATED GLASS - PART 1: DEFINITIONS AND CLASSIFICATION |
UNE-EN 50583-1:2016 | Photovoltaics in buildings - Part 1: BIPV modules |
I.S. EN 13947:2006 | THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
10/30234542 DC : 0 | BS EN ISO 12631 - THERMAL PERFORMANCE OF CURTAIN WALLING - CALCULATION OF THERMAL TRANSMITTANCE |
04/30099887 DC : DRAFT MAY 2004 | PREN 14963 - ROOF COVERINGS - CONTINUOUS ROOFLIGHTS OF PLASTICS WITH UPSTANDS - CLASSIFICATION, REQUIREMENTS AND TEST METHODS |
EN ISO 52018-1:2017 | Energy performance of buildings - Indicators for partial EPB requirements related to thermal energy balance and fabric features - Part 1: Overview of options (ISO 52018-1:2017) |
I.S. EN 16153:2013 | LIGHT TRANSMITTING FLAT MULTIWALL POLYCARBONATE (PC) SHEETS FOR INTERNAL AND EXTERNAL USE IN ROOFS, WALLS AND CEILINGS - REQUIREMENTS AND TEST METHODS |
BS EN 1279-5 : 2005 | GLASS IN BUILDING - INSULATING GLASS UNITS - PART 5: EVALUATION OF CONFORMITY |
17/30354665 DC : 0 | BS EN 13031-1 - GREENHOUSES - DESIGN AND CONSTRUCTION - PART 1: COMMERCIAL PRODUCTION GREENHOUSES |
DIN EN 1096-1:2012-04 | Glass in building - Coated glass - Part 1: Definitions and classification |
UNE-EN 673:2011 | Glass in building - Determination of thermal transmittance (U value) - Calculation method |
EN 13363-1:2003+A1:2007/AC:2008 | SOLAR PROTECTION DEVICES COMBINED WITH GLAZING - CALCULATION OF SOLAR AND LIGHT TRANSMITTANCE - PART 1: SIMPLIFIED METHOD |
EN 50583-1:2016 | Photovoltaics in buildings - Part 1: BIPV modules |
EN 1096-1:2012 | Glass in building - Coated glass - Part 1: Definitions and classification |
DIN EN 13363-1:2007-09 | SOLAR PROTECTION DEVICES COMBINED WITH GLAZING - CALCULATION OF SOLAR AND LIGHT TRANSMITTANCE - PART 1: SIMPLIFIED METHOD |
UNE-EN 1279-5:2006 | Glass in building - Insulating glass units - Part 5: Evaluation of conformity |
UNE-EN 16153:2013 | Light transmitting flat multiwall polycarbonate (PC) sheets for internal and external use in roofs, walls and ceilings - Requirements and test methods |
ISO 10211:2017 | Thermal bridges in building construction — Heat flows and surface temperatures — Detailed calculations |
EN 673:2011 | Glass in building - Determination of thermal transmittance (U value) - Calculation method |
EN 410:2011 | Glass in building - Determination of luminous and solar characteristics of glazing |
EN 12898:2001 | Glass in building - Determination of the emissivity |
EN ISO 13790:2008 | Energy performance of buildings - Calculation of energy use for space heating and cooling (ISO 13790:2008) |
ISO 8302:1991 | Thermal insulation — Determination of steady-state thermal resistance and related properties — Guarded hot plate apparatus |
EN ISO 10211:2017 | Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations (ISO 10211:2017) |
ISO 10077-1:2017 | Thermal performance of windows, doors and shutters — Calculation of thermal transmittance — Part 1: General |
ISO 13790:2008 | Energy performance of buildings Calculation of energy use for space heating and cooling |
EN ISO 10077-1:2017 | Thermal performance of windows, doors and shutters - Calculation of thermal transmittance - Part 1: General (ISO 10077-1:2017, Corrected version 2020-02) |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.