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Thermal modelling

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​​Recent updates to Building Regulations have introduced provisions to address overheating, particularly important in densely built-up areas and with the increasing frequency and intensity of heatwaves.

 

This may involve specifying measures such as increased ventilation, shading devices, and thermal mass. 

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The Part O guidance has been based on the CIBSE TM59 methodology with a few variations.​​

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Part O Overheating + TM59
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We carry out assessments using dynamic simulation modelling for individual houses and multi-residential apartment blocks.​​​​​​​​

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Where the development is mixed use we can combine this with other overheating assessments such as CIBSE TM52 or BB101 to ensure all spaces are not at risk of overheating during the summer months.

Part O

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CIBSE TM52

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CIBSE TM52 addresses the risk of overheating in non-domestic buildings and can help to predict early on where designs may require additional shading or ventilation.

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Meeting thermal comfort criteria can be a pre-requisite for some environmental building standards such as BREEAM or LEED and can be particularly important for buildings with vulnerable occupants such as care homes.

 

Shading devices on a school building
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BB101 Designing for Schools

 

BB101 is a government standard aimed specifically at schools.  First introduced in 2006, it was updated in 2018 and lays out minimum standards for ventilation, thermal comfort and indoor air quality.

 

We use our suite of dynamic simulation software to assess designs and provide advice on how to comply with the requirements and find the right balance between the quality of the indoor environment and the energy performance of the building.   

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Daylight analysis is concerned with the quality of natural light within a space.  We carry out daylight analysis across a range of building types using 3D simulation modelling to accurately predict how a design will perform.  

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Daylighting can have a significant impact on the quality of the spaces within a building and is a key component in creating healthy buildings.  

Ensuring adequate daylight provision is often central to biophillic designs and those looking to create neurodivergent friendly working and learning environments.  

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Sunlight analysis is concerned with the impact a proposed development may have on surrounding buildings and can assist with planning applications and concerns with over shadowing.  

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Daylight and sunlight 
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Request a quote for thermal modelling

01728 448711

info@sustbydesigncom

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Sustainability By Design

Victoria Mill Rd, Framlingham

Suffolk IP13 9EG

Sustainability By Design Ltd

Enquiries

For any enquiries, please call: 01728 448711

Head Office

© 2025 by SBD Ltd         

CIBSE Low carbon consultant
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CIBSE Low energy assessor
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