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BS EN ISO 12631:2012

BS EN ISO 12631:2012

$198.66

Thermal performance of curtain walling. Calculation of thermal transmittance

Published By Publication Date Number of Pages
BSI 2012 60
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PDF Catalog

PDF Pages PDF Title
9 1 Scope
2 Normative references
10 3 Terms, definitions, symbols and units
3.1 Terms and definitions
11 3.2 Symbols and units
3.3 Subscripts
12 3.4 Superscripts
4 Geometrical characteristics
4.1 Main principles
14 4.2 Internal depth
4.3 Boundaries of curtain wall structures
4.3.1 General
15 4.3.2 Boundaries of a representative reference element
16 4.3.3 Curtain wall areas
17 5 Cut-off planes and partitioning of thermal zones
5.1 Rules for thermal modelling
5.2 Cut-off planes of the geometrical model
6 Calculation of curtain wall transmittance
6.1 Methodologies
18 6.2 Single assessment method
6.2.1 Thermal transmittance of glazing units and panels (filling elements)
6.2.2 Determination of the heat flow through filling element / mullion or transom / filling element connection
6.2.2.1 General
19 6.2.2.2 Determination of the area-related joint thermal transmittance UTJ
20 6.2.2.3 Determination of the linear joint thermal transmittance TJ
21 6.2.2.4 Definitions of areas for other combinations
23 6.2.3 Determination of the overall thermal transmittance of a curtain wall (Ucw)
6.2.3.1 Using the area-related thermal transmittance UTJ
6.2.3.2 Using the length-related linear thermal transmittance ΨTJ
24 6.3 Component assessment method
6.3.1 General
6.3.2 Definition of areas
6.3.2.1 Glazed areas
6.3.2.2 Total visible perimeter of the glazing or opaque panel
25 6.3.2.3 Areas of frames, mullions and transoms
26 6.3.2.4 Area of a module of curtain walling
27 6.3.3 Thermal transmittance of glazing units and panels (filling elements)
6.3.4 Thermal transmittance of frames, mullions and transoms
28 6.3.5 Linear thermal transmittance
29 6.4 Thermal transmittance of a curtain wall built of different elements
7 Input data
30 8 Report
8.1 Section drawings
31 8.2 Overview drawing of the whole curtain wall element
8.3 Values used for calculation
8.4 Presentation of results

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BS EN ISO 12631:2012
$198.66