As our globe continues to warm up, and modern buildings are constructed with enlarged glazing and high air tightness, overheating is becoming an important issue in the UK homes and buildings.

The newly released Building Regulations Approved Document O (Part O), which will come into effect on 15^th June 2022 in England, outlines and provides guidance on the legal and technical obligations for newly constructed residential buildings to comply with overheating standards. Some planning authorities, for example, the Greater London Authority, were demanding dynamic overheating analysis a few years ago.

Dynamic thermal modelling is an advanced computer algorithm, and allows accurate prediction of thermal and other building related performances. It takes into account a wide range of design parameters (e.g. hourly weather files and detailed occupancy schedules and internal gains), and analyses them at short time intervals (e.g. sub hourly analysis). Consequently, the results derived from dynamic thermal modelling are a more accurate reflection of a building’s performance, in comparison with other static methods.

We use industry leading software, DesignBuilder dynamic simulation software, to construct 3D models and analyse overheating risk.

Innervision Design offers the following dynamic overheating assessment services:

1. CIBSE TM59 dynamic overheating modelling for homes and residential institutions. CIBSE TM59:2017 (Design methodology for the assessment of overheating risk in homes) defines an industry standardised approach to predicting overheating risk for residential buildings using dynamic thermal analysis. Part O only requires new residential buildings to comply with CIBSE TM59 dynamic thermal standards.
2. CIBSE TM52 dynamic overheating modelling and reports for non-residential buildings. CIBSE guide TM52, 2013 (The Limits of Thermal Comfort: Avoiding Overheating in European Buildings’), defines an industry standardised approach to predicting overheating risk for non-residential buildings using dynamic thermal analysis.

We look forward to receiving your calls and emails. Please feel free to get in touch for a friendly discussion and some initial advice. For more information, please visit our website: https://www.innervision-design.co.uk/dynamic-overheating-assessment.php.