DesignBuilder and it's underlying calculation engines reference and apply a wide range of different national and international standards.
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Standard
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Description | How used in DesignBuilder |
| EN ISO 12831 | Heating systems in buildings. Method for calculation of the design heat load. |
The infiltration defined in the model is converted to m/s for input to EnergyPlus using the methods described in this standard. See: |
| EN ISO 6946 | Building components and building elements - Thermal resistance and thermal transmittance -Calculation methods. | Calculation of R and U-values for Constructions |
| ISO 13788 2012 | Hygrothermal performance of building components and building elements - Internal surface temperature to avoid critical surface humidity and interstitial condensation - Calculation methods. | Condensation analysis calculations for constructions. |
| ASHRAE 55 | Thermal Environmental Conditions for Human Occupancy. |
EnergyPlus occupant comfort calculations: |
| ASHRAE 62.1 | Ventilation and Acceptable Indoor Air Quality. |
A range of ventilation calculations including DCV to ensure adequate fresh air is provided to occupants: |
| ASHRAE 90.1 Appendix G 2010, 2013, 2016 | Performance Rating Method (PRM). |
ASHRAE 90.1 Appendix G is the Energy Standard for Buildings Except Low-Rise Residential Buildings and as a key component of the LEED Optimize Energy Performance credit calculations. |
| EN 15251 | Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics. |
EnergyPlus occupant comfort calculations: |
| ISO 10292 | Glass in building - Calculation of steady-state U values (thermal transmittance) of multiple glazing | Calculation method for centre of glass U‐value on the Glazing dialog. |
| EN 673 | Glass in building – Determination of thermal transmittance (U value) – Calculation method. | Calculation method for centre of glass U‐value on the Glazing dialog. |
| CIBSE TM52 | TM52 The limits of thermal comfort: avoiding overheating (2013). | CIBSE TM52 Overheating Assessments |
| CIBSE TM59 | TM59 Design methodology for the assessment of overheating risk in homes (2017). | CIBSE TM59 - Modelling and Analysis Guide |
| Part-O (England and Wales) | Approved Document O: Overheating mitigation. | CIBSE TM59 - Modelling and Analysis |
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Standard
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Description | How used in DesignBuilder |
| ASHRAE 140 2017 / BESTEST | Method Of Test For Evaluating Building Performance Simulation Software. The tests compare temperatures, energy flows and other outputs with other simulation software. DesignBuilder passes these tests. |
Validation tests |
| EN ISO 13790 | Energy performance of buildings - Calculation of energy use for space heating and cooling. |
Validation tests |
| EN ISO 15265 | Energy performance of buildings - Calculation of energy needs for space heating and cooling using dynamic methods - General criteria and validation procedures. |
Validation tests |
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Other Standards DesignBuilder can be used for
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Standard
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Description | How used in DesignBuilder |
| ASHRAE Standard 209 | Define reliable, consistent procedures that advance the use of timely energy modeling to quantify the impact of design decisions | DesignBuilder can be used to comply with all modelling cycles, including sensitivity and optimisation cycles. Watch this webinar, which covers the various modelling cycles that DesignBuilder parametric tools can help with. |
| CIBSE TM54 | Evaluating operational energy use at the design stage | See the TM54 Simple HVAC case study and the TM54 Detailed HVAC case study. |
| NABERS UK Design for Performance (DfP) | A framework to predict and ensure that new office buildings achieve a target energy rating in use. | See NABERS DfP case study |
| ASHRAE Guideline 14/IPMVP/CIBSE TM63 | These are complementary documents providing guidance on developing calibrated models for measurement and verification studies (Option D in IPMVP) | See modelling and calibration case study |
| ASHRAE Standard 189.1 | This standard provides minimum requirements for the design, construction, and operation of high-performance green buildings. | DesignBuilder can model and simulate building performance aspects, such as energy consumption, indoor air quality, and thermal comfort, to ensure designs meet the standards' criteria. |
| ISO 50001: Energy Management Standard | This standard provides a framework for organisations to systematically manage their energy performance and reduce consumption. | DesignBuilder can provide insights into energy consumption patterns and performance of buildings which is crucial for identifying significant energy users (SEUs) and developing energy performance indicators (EnPIs), as recommended by ISO 50001. |
| ISO 52016: Energy Performance of Buildings | This standard provides a comprehensive set of rules and methods for evaluating the energy performance of buildings, including heating, cooling, and other energy-related aspects. |
DesignBuilder can be used to create detailed energy models that comply with the requirements of ISO 52016.
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To see how DesignBuilder can be used for various regulations, certification schemes and green ratings see our web pages: