NF EN ISO 14438

NF EN ISO 14438

May 2003
Standard Current

Glass in building - Determination of energy balance value - Calculation method

This European Standard specifies a calculation method to determine the energy balance value of glazing. This European Standard applies to transparent materials such as glass and combinations of glass used to glaze windows in buildings. This method is intended to evaluate the balance of heat loss and useful heat gain by solar radiation entering the building through the glazing for a given period by means of an average rate of loss (or gain) of heat called the energy balance value. The method enables producers to compare the performance of their glazing products. The energy balance value should not be used for energy use or heating capacity calculations in buildings.

See more
View the extract
Main informations

Collections

National standards and national normative documents

Publication date

May 2003

Number of pages

13 p.

Reference

NF EN ISO 14438

ICS Codes

81.040.20   Glass in building

Classification index

P78-465

Print number

1 - 16/07/2003

International kinship

ISO 14438:2002

European kinship

EN ISO 14438:2002
Sumary
Glass in building - Determination of energy balance value - Calculation method

This European Standard specifies a calculation method to determine the energy balance value of glazing. This

European Standard applies to transparent materials such as glass and combinations of glass used to glaze

windows in buildings.

This method is intended to evaluate the balance of heat loss and useful heat gain by solar radiation entering the

building through the glazing for a given period by means of an average rate of loss (or gain) of heat called the

energy balance value.

The method enables producers to compare the performance of their glazing products. The energy balance value

should not be used for energy use or heating capacity calculations in buildings.

Table of contents
View the extract
  • Avant-propos
    3
  • 1
    Domaine d'application 4
  • 2
    Références normatives 4
  • 3
    Symboles et abréviations 4
  • 4
    Formule fondamentale 5
  • 5
    Propriétés fondamentales du matériau 5
  • 6
    Rayonnement solaire incident, Hp 6
  • 7
    Données concernant les degrés-jours, Dp 6
  • 8
    Période d'évaluation, p 6
  • 9
    Principales valeurs et présentation 6
  • 10
    Autre simplification des valeurs principales et présentation 7
  • Annexe A (informative) Exemples de données climatiques p, Dp et Hp
    8
  • Annexe B (informative) Exemples de calcul de la valeur du bilan énergétique
    9
  • Bibliographie
    11
ZOOM ON ... the Requirements department
To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

With Requirements, quickly access the main part of the normative text!
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ