The UK is bracing itself for another sweltering spell as a new heatwave alert is issued by the Met Office, with thousands of homes at risk of becoming oven-like due to inadequate insulation and outdated construction methods.
As temperatures soar across England, particularly in the South East and East Anglia where highs of 29-31°C are predicted, many homeowners are struggling to keep their properties cool. This is partly because much of the UK's housing stock was built with energy conservation in mind for colder months, leaving it ill-equipped to handle prolonged heatwaves.
Karl McArdle, co-founder of The Property Buying Company, recommends several practical steps to mitigate heat build-up: "Close blinds and curtains on sun-facing windows to block out the heat. Don't open windows during the day – it brings in warmer air. Instead, keep them closed until evening when you can let cooler air in. Switch off your central heating system and unused appliances, which generate unnecessary heat. LED bulbs are also a no-brainer."
Efficient use of electric fans can help with ventilation, but only below 35°C. Doors to unused rooms should be kept closed to maximise their effectiveness. Extractor fans in bathrooms after showering or when humidity is high can help remove warm air. Heat-reflective window film is a long-term solution, reducing solar heat absorption by up to 90%. Planting trees around the home or installing awnings provides external shade, limiting heat gain.
The Met Office's alert covers parts of England where temperatures are forecast to reach highs of 29-31°C and overnight lows remain around 18°C. Scotland, Wales, and Northern Ireland will experience milder conditions, but localised warmer spots could occur. With light winds expected (5-10 mph), residents should be aware that the heat will feel more intense in still conditions.
Residents are advised to stay hydrated, seek shade, and avoid strenuous activities during the hottest part of the day. Homeowners who take proactive measures can not only keep their homes cooler but also reduce energy bills and carbon emissions.