What is it about?

Real world monitoring of a converted London apartment was assessed using CIBSE TM52 which is now required by the Greater London Authority to assess risks of overheating at the planning stage of building design. Internal and External Shading combined with night-time ventilation was assessed for its effectiveness in reducing overheating risk. External shading and internal shading was found to be effective at enabling the building to meet the overheating risk assessment CIBSE TM52. Although Internal shading was less effective it still provided 73% of the operative temperature reduction that external shading provided.

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Why is it important?

Increasing global temperatures put buildings in the UK at risk of overheating and 20% of the housing stock is currently subject to overheating. In this study, we investigate the impact that different shading strategies can have on a renovated urban apartment when combined with night-time ventilation. It is important to quantify and evidence the extent that passive measures can have on mitigating overheating risk in order to prevent the uptake of more energy-intensive methods of cooling buildings.


Writing this paper was a privilege and was aimed at not only improving the knowledge of academia but also improving the knowledge of the shading industry and occupiers of buildings.

Zoe De Grussa
London South Bank University

Read the Original

This page is a summary of: A London residential retrofit case study: Evaluating passive mitigation methods of reducing risk to overheating through the use of solar shading combined with night-time ventilation, Building Services Engineering Research and Technology, April 2019, SAGE Publications,
DOI: 10.1177/0143624419840768.
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