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EN 15026:2007

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Hygrothermal performance of building components and building elements - Assessment of moisture transfer by numerical simulation
Withdrawn date

10-31-2007

Published date

04-11-2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols and units
4 Hygrothermal equations and material properties
  4.1 Assumptions
  4.2 Transport of heat and moisture
  4.3 Material properties
5 Boundary conditions
  5.1 Internal conditions
  5.2 External conditions
6 Documentation of input data and results
  6.1 General
  6.2 Problem description
  6.3 Hygrothermal model and numerical solution
  6.4 Calculation report
Annex A (normative) Benchmark example - Moisture uptake in
        a semi-infinite region
      A.1 General
      A.2 Problem description
      A.3 Results
Annex B (informative) Design of Moisture Reference Years
Annex C (informative) Internal boundary conditions
Bibliography

This standard specifies the equations to be used in a simulation method for calculating the non steady transfer of heat and moisture through building structures. It also provides a benchmark example intended to be used for validating a simulation method claiming conformity with this standard, together with the allowed tolerances.The equations in this standard take account of the following storage and one-dimensional transport phenomena:-heat storage in dry building materials and absorbed water;-heat transport by moisture-dependent thermal conduction;-latent heat transfer by vapour diffusion;-moisture storage by vapour sorption and capillary forces;-moisture transport by vapour diffusion; -moisture transport by liquid transport (surface diffusion and capillary flow).The equations described in this standard account for the following climatic variables:-internal and external temperature;-internal and external humidity;-solar and longwave radiation;-precipitation (normal and driving rain);-wind speed and direction.The hygrothermal equations described in this standard shall not be applied in cases where:-convection takes place through holes and cracks;-two-dimensional effects play an important part (e.g. rising damp, conditions around thermal bridges, effect of gravitational forces);•hydraulic, osmotic, electrophoretic forces are present;daily mean temperatures in the component exceed 50 °C.

Committee
CEN/TC 89
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn

Standards Relationship
DS EN 15026 : 2007 Identical
I.S. EN 15026:2007 Identical
UNE-EN 15026:2007 Identical
UNI EN 15026 : 2008 Identical
PN EN 15026 : 2008 Identical
DIN EN 15026 E : 2007 Identical
BS EN 15026:2007 Identical
NBN EN 15026 : 2007 Identical
NS EN 15026 : 1ED 2007 Identical
NF EN 15026 : 2008 Identical
SN EN 15026 : 2007 Identical
NEN EN 15026 : 2007 Identical
DIN EN 15026:2007-07 Identical

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DIN EN 15243:2007-10 VENTILATION FOR BUILDINGS - CALCULATION OF ROOM TEMPERATURES AND OF LOAD AND ENERGY FOR BUILDINGS WITH ROOM CONDITIONING SYSTEMS
DIN EN 16883 E : 2017 CONSERVATION OF CULTURAL HERITAGE - GUIDELINES FOR IMPROVING THE ENERGY PERFORMANCE OF HISTORIC BUILDINGS
I.S. EN 16883:2017 CONSERVATION OF CULTURAL HERITAGE - GUIDELINES FOR IMPROVING THE ENERGY PERFORMANCE OF HISTORIC BUILDINGS
EN 15243:2007 Ventilation for buildings - Calculation of room temperatures and of load and energy for buildings with room conditioning systems
EN 16883:2017 Conservation of cultural heritage - Guidelines for improving the energy performance of historic buildings

EN 12667:2001 Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Products of high and medium thermal resistance
EN ISO 12571:2013 HYGROTHERMAL PERFORMANCE OF BUILDING MATERIALS AND PRODUCTS - DETERMINATION OF HYGROSCOPIC SORPTION PROPERTIES (ISO 12571:2013)
ISO 13788:2012 Hygrothermal performance of building components and building elements — Internal surface temperature to avoid critical surface humidity and interstitial condensation — Calculation methods
EN 12939:2000 Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Thick products of high and medium thermal resistance
ISO 12571:2013 Hygrothermal performance of building materials and products Determination of hygroscopic sorption properties
ISO 12572:2016 Hygrothermal performance of building materials and products Determination of water vapour transmission properties Cup method
ISO 15148:2002 Hygrothermal performance of building materials and products Determination of water absorption coefficient by partial immersion
EN ISO 12572:2016 Hygrothermal performance of building materials and products - Determination of water vapour transmission properties - Cup method (ISO 12572:2016)
EN 12664:2001 Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Dry and moist products of medium and low thermal resistance
EN ISO 13788:2012 Hygrothermal performance of building components and building elements - Internal surface temperature to avoid critical surface humidity and interstitial condensation - Calculation methods (ISO 13788:2012, Corrected version 2020-05)
EN ISO 15148:2002/A1:2016 HYGROTHERMAL PERFORMANCE OF BUILDING MATERIALS AND PRODUCTS - DETERMINATION OF WATER ABSORPTION COEFFICIENT BY PARTIAL IMMERSION (ISO 15148:2002+A1:2016)
ISO 7345:1987 Thermal insulation Physical quantities and definitions

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