Overheating Risk Assessments

Overheating Risk Assessments

We undertake overheating assessment using the TM52 and TM59 methodologies for modelling and calculation of overheating risk in both commercial and domestic developments.

It is becoming increasingly essential that overheating risk assessment be undertaken for planning permission to be granted, as we now live in an age of greater requirement for high quality insulation and lower air tightness targets.

This leads to greater risk of overheating in poorly ventilated environments, areas where there is excessive active or passive heating and lack of cooling control.

TM52 is for commercial application and TM59 for domestic dwellings.

In the future, due to climate change there may be hotter summers with more frequent heat waves, which can be taken into account when designing developments looking forward.

Factors taken into account:

• Construction materials
• Layout and design
• Ventilation
• Occupancy or building use case
• Regional weather data

Thermal modelling can be used to evaluate designs and deliver energy efficiency and environmental comfort:

• Assess the potential for over-heating at design stage.
• Assess natural ventilation strategies, solar shading and high thermal mass structures.
• Assess proposals for Building Bulletin 101 (BB101): Ventilation of school buildings compliance.
• Evaluate the performance benefits between utilising bris-soleil or solar control glazing.
• Assessment against CIBSE TM52 and TM59.

If you have a planning requirement to have an overheating risk assessment carried out, get in touch and we will guide you through the process and ensure that your development meets the requirements.