ISO 12631:2017 specifies a method for calculating the thermal transmittance of curtain walls consisting of glazed and/or opaque panels fitted in, or connected to, frames. The calculation includes: - different types of glazing, e.g. glass or plastic; single or multiple glazing; with or without low emissivity coating; with cavities filled with air or other gases; - frames (of any material) with or without thermal breaks; - different types of opaque panels clad with metal, glass, ceramics or any ot...view more

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    • Standard
      47 pages
      English language
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    • Standard
      51 pages
      French language

ISO 10211:2017 sets out the specifications for a three-dimensional and a two-dimensional geometrical model of a thermal bridge for the numerical calculation of - heat flows, in order to assess the overall heat loss from a building or part of it, and - minimum surface temperatures, in order to assess the risk of surface condensation. These specifications include the geometrical boundaries and subdivisions of the model, the thermal boundary conditions, and the thermal values and relationships to b...view more

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    • Standard
      55 pages
      English language
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    • Standard
      57 pages
      French language

ISO/TR 52016-2:2017 contains information to support the correct understanding and use of ISO 52016‑1 and ISO 52017‑1. These documents give calculation methods for the assessment of: - the (sensible and latent) energy load and need for heating and cooling, based on hourly calculations; - the (sensible and latent) energy need for heating and cooling, based on monthly calculations (ISO 52016‑1); - the internal temperature, based on hourly calculations; and - the design (sensible and latent) heating...view more

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    • Technical report
      128 pages
      English language

ISO 13370:2017 provides methods of calculation of heat transfer coefficients and heat flow rates for building elements in thermal contact with the ground, including slab‐on‐ground floors, suspended floors and basements. It applies to building elements, or parts of them, below a horizontal plane in the bounding walls of the building situated - at the level of the inside floor surface, for slab‐on‐ground floors, suspended floors and unheated basements; NOTE 1 In some cases, external dimension syst...view more

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    • Standard
      49 pages
      English language
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    • Standard
      51 pages
      French language

ISO 13789:2017 specifies a method and provides conventions for the calculation of the steady‐state transmission and ventilation heat transfer coefficients of whole buildings and parts of buildings. It is applicable both to heat loss (internal temperature higher than external temperature) and to heat gain (internal temperature lower than external temperature). For the purpose of ISO 13789:2017, the heated or cooled space is assumed to be at uniform temperature. Annex C provides a steady‐state met...view more

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    • Standard
      24 pages
      English language
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    • Standard
      25 pages
      French language

ISO 52022-1:2017 specifies a simplified method based on thermal, solar and light characteristics of the glazing and solar and light characteristics of the solar protection device, to estimate the total solar energy transmittance, direct energy transmittance and the light transmittance of a solar protection device combined to a glazing.

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    • Standard
      17 pages
      English language
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    • Standard
      17 pages
      French language

ISO 52022-3:2017 specifies a detailed method, based on spectral data of the transmittance and reflectance of the constituent materials (solar protection devices and the glazing), to determine the total solar energy transmittance, the total light transmittance and other relevant solar-optical data of the combination. If spectral data are not available, the methodology can be adapted to use integrated data.

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    • Standard
      31 pages
      English language
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    • Standard
      31 pages
      French language

ISO/TR 52010-2:2017 contains information to support the correct understanding and use of ISO 52010‑1. ISO/TR 52010-2:2017 does not contain any normative provision.

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    • Technical report
      24 pages
      English language

ISO/TR 52018-2:2017 refers to ISO 52018‑1. ISO 52018‑1 gives a succinct enumeration of possible requirements related to thermal energy balance features and to fabric features. It also provides tables for regulators to report their choices in a uniform manner. ISO/TR 52018-2:2017 provides many background considerations that can help both private actors and public authorities, and all stakeholders involved, to take informed decisions. ISO/TR 52018-2:2017 does not contain any normative provision.

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    • Technical report
      38 pages
      English language

ISO 52016-1:2017 specifies calculation methods for the assessment of: a) the (sensible) energy need for heating and cooling, based on hourly or monthly calculations; b) the latent energy need for (de-)humidification, based on hourly or monthly calculations; c) the internal temperature, based on hourly calculations; d) the sensible heating and cooling load, based on hourly calculations; e) the moisture and latent heat load for (de-)humidification, based on hourly calculations; f) the design sensi...view more

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    • Standard
      204 pages
      English language
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    • Standard
      214 pages
      French language

The set of EPB assessment standards produces a great number of overall and partial EPB indicators as outputs, which can be used for different purposes. ISO 52018-1:2017 deals with the use as requirement of partial EPB indicators related to the fabric and related to the thermal balance of the building. Thermal balance aspects concern both the heating and cooling needs and the free floating temperatures, especially with respect to overheating or too cold indoor temperatures. ISO 52018-1:2017 can s...view more

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    • Standard
      43 pages
      English language
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    • Standard
      46 pages
      French language

ISO 52017-1:2017 specifies the general assumptions, boundary conditions and equations for the calculation, under transient hourly or subhourly conditions, of the internal temperatures (air and operative) and/or the heating, cooling and humidification and dehumidification loads to hold a specific (temperature, moisture) set point, in a single building zone. No specific numerical techniques are imposed by ISO 52017-1:2017. Specific calculation procedures based on the generic calculation procedures...view more

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    • Standard
      31 pages
      English language
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    • Standard
      32 pages
      French language

ISO 6946:2017 provides the method of calculation of the thermal resistance and thermal transmittance of building components and building elements, excluding doors, windows and other glazed units, curtain walling, components which involve heat transfer to the ground, and components through which air is designed to permeate. The calculation method is based on the appropriate design thermal conductivities or design thermal resistances of the materials and products for the application concerned. The...view more

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    • Standard
      40 pages
      English language
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    • Standard
      43 pages
      French language

ISO/TR 52022-2:2017 contains information to support the correct understanding and use of ISO 10077‑1, ISO 10077‑2, ISO 12631, ISO 52022‑1 and ISO 52022‑3. This technical report does not contain any normative provision.

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    • Technical report
      47 pages
      English language
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    • Technical report
      50 pages
      French language

ISO 10077-1:2017 specifies methods for the calculation of the thermal transmittance of windows and pedestrian doors consisting of glazed and/or opaque panels fitted in a frame, with and without shutters.

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    • Standard
      40 pages
      English language
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    • Standard
      40 pages
      English language
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    • Standard
      42 pages
      French language

ISO 13786:2017 specifies the characteristics related to the dynamic thermal behaviour of a complete building component and provides methods for their calculation. It also specifies the information on building materials required for the use of the building component. Since the characteristics depend on the way materials are combined to form building components, ISO 13786:2017 is not applicable to building materials or to unfinished building components. The definitions given in ISO 13786:2017 are ...view more

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    • Standard
      19 pages
      English language
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    • Standard
      19 pages
      French language

ISO 10077-2:2017 specifies a method and gives reference input data for the calculation of the thermal transmittance of frame profiles and of the linear thermal transmittance of their junction with glazing or opaque panels. The method can also be used to evaluate the thermal resistance of shutter profiles and the thermal characteristics of roller shutter boxes and similar components (e.g. blinds). ISO 10077-2:2017 also gives criteria for the validation of numerical methods used for the calculatio...view more

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    • Standard
      70 pages
      English language
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    • Standard
      70 pages
      French language

ISO/TR 52019-2:2017 contains information to support the correct understanding and use of ISO 6946, ISO 10211, ISO 13370, ISO 13786, ISO 13789 and ISO 14683. ISO/TR 52019-2:2017 does not contain any normative provision.

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    • Technical report
      59 pages
      English language

ISO 52010-1:2017 specifies a calculation procedure for the conversion of climatic data for energy calculations. The main element in ISO 52010-1:2017 is the calculation of solar irradiance on a surface with arbitrary orientation and tilt. A simple method for conversion of solar irradiance to illuminance is also provided. The solar irradiance and illuminance on an arbitrary surface are applicable as input for energy and daylighting calculations, for building elements (such as roofs, facades and wi...view more

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    • Standard
      35 pages
      English language
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    • Standard
      36 pages
      French language
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    • Standard
      25 pages
      English language
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    • Standard
      26 pages
      French language

ISO 15758:2014 specifies a method for calculating the density of the water vapour flow rate in cold pipe insulation systems, and the total amount of water diffused into the insulation over time. The calculation method presupposes that water vapour can only migrate into the insulation system by diffusion, with no contribution from airflow. It also assumes the use of homogeneous, isotropic insulation materials so that the water vapour partial pressure is constant at all points equidistant from the...view more

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    • Standard
      15 pages
      English language
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    • Standard
      15 pages
      English language
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    • Standard
      15 pages
      French language
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    • Standard
      15 pages
      French language

ISO 13788:2012 gives simplified calculation methods for: The internal surface temperature of a building component or building element below which mould growth is likely, given the internal temperature and relative humidity. The method can also be used to assess the risk of other internal surface condensation problems. The assessment of the risk of interstitial condensation due to water vapour diffusion. The method used does not take account of a number of important physical phenomena including t...view more

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    • Standard
      40 pages
      English language
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    • Standard
      40 pages
      French language
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    • Standard
      40 pages
      French language
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    • Standard
      1 page
      English language
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    • Standard
      1 page
      English language
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    • Standard
      1 page
      French language

ISO 18292:2011 specifies a procedure for calculation of the energy performance of fenestration systems used in residential buildings, for rating of fenestration systems, doors and skylights, including the effects of frame, sash, glazing, and shading components. ISO 18292:2011 specifies procedures for the calculation of the heating and cooling energy use in residential buildings, internal and external climatic conditions, and relevant building characteristics. These procedures can accommodate all...view more

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    • Standard
      33 pages
      English language

ISO 15927-3:2009 specifies two procedures for providing an estimate of the quantity of water likely to impact on a wall of any given orientation. It takes account of topography, local sheltering and the type of building and wall. The first method, based on coincident hourly rainfall and wind data, defines the method of calculation of the annual average index, which influences the moisture content of an absorbent surface, such as masonry, and the spell index, which influences the likelihood of ra...view more

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    • Standard
      17 pages
      English language
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    • Standard
      19 pages
      French language

ISO 15927-2:2009 gives the definition, and specifies methods of calculation and presentation of the monthly external design climate to be used in determining the design cooling load of buildings and the design of air conditioning systems.

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    • Standard
      8 pages
      English language
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    • Standard
      8 pages
      French language

ISO 12241:2008 gives rules for the calculation of heat-transfer-related properties of building equipment and industrial installations, predominantly under steady-state conditions. ISO 12241:2008 also gives a simplified approach for the treatment of thermal bridges.

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    • Standard
      45 pages
      English language
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    • Standard
      44 pages
      French language

ISO 23993:2008 gives methods to calculate design thermal conductivities from declared thermal conductivities for the calculation of the thermal performance of building equipment and industrial installations. These methods are valid for operating temperatures from -200 °C to +800 °C. The conversion factors, established for the different influences, are valid for the temperature ranges indicated in the relevant clauses or annexes.

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    • Standard
      31 pages
      English language
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    • Standard
      31 pages
      English language
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    • Standard
      31 pages
      French language
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    • Standard
      31 pages
      French language

ISO 10456:2007 specifies methods for the determination of declared and design thermal values for thermally homogeneous building materials and products, together with procedures to convert values obtained under one set of conditions to those valid for another set of conditions. These procedures are valid for design ambient temperatures between -30 °C and +60 °C. ISO 10456:2007 provides conversion coefficients for temperature and for moisture. These coefficients are valid for mean temperatures bet...view more

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    • Standard
      25 pages
      English language
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    • Standard
      28 pages
      French language

ISO 15927-6:2007 specifies the definition, method of computation and method of presentation of data on accumulated temperature differences, used for assessing the energy used for space heating in buildings. These are normally expressed in degree‑hours or degree-days, and such data are often referred to simply as "heating degree-hours" or "heating degree-days". ISO 15927-6:2007 includes approximate methods for calculating accumulated temperature differences based on hourly or daily mean temperatu...view more

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    • Standard
      13 pages
      English language
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    • Standard
      13 pages
      French language

ISO 15927-4:2005 specifies a method for constructing a reference year of hourly values of appropriate meteorological data suitable for assessing the average annual energy for heating and cooling. Other reference years representing average conditions can be constructed for special purposes. The procedures in this part of ISO 15927-4:2005 are not suitable for constructing extreme or semi-extreme years for simulation of, for example, moisture damage or energy demand in cold years. Meteorological in...view more

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    • Standard
      5 pages
      English language
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    • Standard
      5 pages
      French language

ISO 15927-5:2004 specifies the definition, method of calculation and method of presentation of the climatic data to be used in determining the design heat load for space heating in buildings. These include the winter external design air temperatures and the relevant wind speed and direction, where appropriate. Heat loss through the ground, which also contributes to the heat load for buildings, depends on longer-term temperature changes; methods for calculating ground heat loss are given in ISO 1...view more

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    • Standard
      6 pages
      English language
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    • Standard
      6 pages
      French language

ISO 15927-1:2003 specifies procedures for calculating and presenting the monthly means of those parameters of climatic data needed to assess some aspects of the thermal and moisture performance of buildings. Numerical values for any locations should be obtained from the meteorological service in the relevant country. ISO 15927-1:2003 covers the following single climate variables: air temperature; atmospheric humidity; wind speed; precipitation; solar radiation; longwave radiation. Meteorological...view more

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    • Standard
      26 pages
      English language

ISO 15099:2003 specifies detailed calculation procedures for determining the thermal and optical transmission properties (e.g., thermal transmittance, total solar energy transmittance) of window and door systems based on the most up-to-date algorithms and methods, and the relevant solar and thermal properties of all components. Products covered by ISO 15099:2003 include windows and doors incorporating: single and multiple glazed fenestration products with or without solar reflective, low-emissiv...view more

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    • Standard
      71 pages
      English language

ISO 13787:2003 establishes a procedure for the determination and verification of declared thermal conductivity, as a function of temperature, of thermal insulating materials and products used for the insulation of building equipment and industrial installations. Informative annex B gives an optional method for establishing the thermal conductivity curve or table from measured values. ISO 13787:2003 is not applicable to thermal insulating products used in building envelopes. For the procedures wh...view more

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    • Standard
      19 pages
      English language
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    • Standard
      19 pages
      French language
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    • Standard
      42 pages
      English language
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    • Standard
      42 pages
      French language

This International Standard defines a range of climatological data required for building design, gives guidance on methods of measurement and proposes symbols to designate them. It does not deal with suffixes or concepts combining several types of data, or values derived from basic data such as degree-days or characteristic wind speed. The definitions and symbols given in this International Standard aim to harmonize the expression of climatological data which may be drawn on when drafting regula...view more

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    • Standard
      17 pages
      English language
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    • Standard
      17 pages
      French language
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    • Standard
      17 pages
      French language
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    • Standard
      49 pages
      English language
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    • Standard
      50 pages
      French language
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    • Standard
      1 page
      English language

ISO 13792:2011 specifies the required input data for simplified calculation methods for determining the maximum, average and minimum daily values of the operative temperature of a room in warm periods: a) to define the characteristics of a room at the design stage in order to avoid overheating in summer; b) to define whether the installation of a cooling system is necessary or not.

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    • Standard
      54 pages
      English language
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    • Standard
      57 pages
      French language

ISO 13791:2011 specifies the assumptions, boundary conditions, equations and validation tests for a calculation procedure, under transient hourly conditions, of the internal temperatures (air and operative) during warm periods, of a single room without any cooling/heating equipment in operation.

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    • Standard
      96 pages
      English language
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    • Standard
      97 pages
      French language

ISO 10077-2:2011 specifies a method and gives reference input data for the calculation of the thermal transmittance of frame profiles and of the linear thermal transmittance of their junction with glazing or opaque panels. The method can also be used to evaluate the thermal resistance of shutter profiles and the thermal characteristics of roller shutter boxes and similar components (e.g. blinds). ISO 10077-2:2011 also gives criteria for the validation of numerical methods used for the calculatio...view more

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    • Standard
      36 pages
      English language
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    • Standard
      41 pages
      French language

ISO 13790:2008 gives calculation methods for assessment of the annual energy use for space heating and cooling of a residential or a non-residential building, or a part of it, referred to as “the building”. This method includes the calculation of: the heat transfer by transmission and ventilation of the building zone when heated or cooled to constant internal temperature; the contribution of internal and solar heat gains to the building heat balance; the annual energy needs for heating and cooli...view more

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    • Standard
      162 pages
      English language
    • sale 15% off
    • Standard
      162 pages
      French language

ISO 6946:2007 provides the method of calculation of the thermal resistance and thermal transmittance of building components and building elements, excluding doors, windows and other glazed units, curtain walling, components which involve heat transfer to the ground, and components through which air is designed to permeate. The calculation method is based on the appropriate design thermal conductivities or design thermal resistances of the materials and products for the application concerned. The...view more

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    • Standard
      28 pages
      English language
    • sale 15% off
    • Standard
      29 pages
      French language

ISO 13786:2007 specifies the characteristics related to the dynamic thermal behaviour of a complete building component and provides methods for their calculation. It also specifies the information on building materials required for the use of the building component. Since the characteristics depend on the way materials are combined to form building components, ISO 13786:2007 is not applicable to building materials or to unfinished building components. The definitions given in ISO 13786:2007 are ...view more

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    • Standard
      22 pages
      English language
    • sale 15% off
    • Standard
      23 pages
      French language

ISO 10211:2007 sets out the specifications for a three-dimensional and a two-dimensional geometrical model of a thermal bridge for the numerical calculation of: heat flows, in order to assess the overall heat loss from a building or part of it; minimum surface temperatures, in order to assess the risk of surface condensation. These specifications include the geometrical boundaries and subdivisions of the model, the thermal boundary conditions, and the thermal values and relationships to be used....view more

    • sale 15% off
    • Standard
      45 pages
      English language
    • sale 15% off
    • Standard
      47 pages
      French language

ISO 13370:2007 provides methods of calculation of heat transfer coefficients and heat flow rates for building elements in thermal contact with the ground, including slab-on-ground floors, suspended floors and basements. It applies to building elements, or parts of them, below a horizontal plane in the bounding walls of the building situated for slab-on-ground floors, suspended floors and unheated basements, at the level of the inside floor surface; for heated basements, at the level of the exter...view more

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    • Standard
      48 pages
      English language
    • sale 15% off
    • Standard
      50 pages
      French language

ISO 13789:2007 specifies a method and provides conventions for the calculation of the steady-state transmission and ventilation heat transfer coefficients of whole buildings and parts of buildings. It is applicable both to heat loss (internal temperature higher than external temperature) and to heat gain (internal temperature lower than external temperature). For the purpose of ISO 13789:2007, the heated or cooled space is assumed to be at uniform temperature.

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    • Standard
      18 pages
      English language
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    • Standard
      18 pages
      French language

ISO 14683:2007 deals with simplified methods for determining heat flows through linear thermal bridges which occur at junctions of building elements. ISO 14683:2007 specifies requirements relating to thermal bridge catalogues and manual calculation methods. Default values of linear thermal transmittance are given in Annex A for information.

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    • Standard
      23 pages
      English language
    • sale 15% off
    • Standard
      23 pages
      French language