Atlas Leisure Homes Energy Efficiency
Assessing the airtightness of holiday homes
The aim of this project was to quantify the air permeability and identify the main areas of air leakage associated with a number of prototype holiday home hire fleet models that were being produced by Atlas Leisure Homes. It is estimated that in the UK, 200,000 residents live in park and holiday homes all year round, the majority of which are elderly and on low incomes. As these homes are often thermally inefficient and leaky, these residents are some of the most susceptible in society to fuel poverty. The results identified a number of common air leakage areas within the test caravans, suggesting that there may be a fundamental industry wide issue associated with the way in which these homes are constructed which needs to be addressed. In addition, the results also indicate that utilising the air permeability metric within Sherman’s ratio (Q50/20) to approximate the average annual air infiltration rate, introduces a bias into holiday homes, due to their high surface to volume ratio. This bias is not unique to holiday homes and will be equally applicable to other building types with similar surface to volume ratios.
Johnston DK; Miles-shenton D (2017), The airtightness and air leakage characteristics of new UK holiday homes. Building Services Engineering Research and Technology