Window Method to Prepare Your Home for 30C Heatwave: Expert Tips
Window Method to Prepare Home for 30C Heatwave: Tips

The Met Office has issued an official warning that another heatwave could sweep across the UK as early as Sunday, with temperatures expected to reach the early to mid-30s, particularly in the south west of the nation. For many who struggled through last week's scorching conditions, this forecast is unwelcome news. However, a simple window method could make a significant difference in keeping your home cool.

Met Office Forecast for the Weekend

Tony Wisson, Met Office Deputy Chief Forecaster, said on Monday, June 29: “Toward the weekend, high pressure will continue to build in across most of the UK as it extends from the Azores. This will lead to more settled, warm or very warm conditions for many, especially across England and Wales, though some rain may still affect the far north.” He added: “The forecast for this weekend suggests that temperatures could approach high 20s°C across parts of England, perhaps 30°C in parts of the southeast, with values of mid to high 20s°C in Wales. Although a return to heatwave conditions is looking increasingly likely for some areas, the likelihood of such extreme high temperatures or high levels of humidity as last week is currently low.”

Five Steps to Prepare Your Home for the Heat

Despite the lower humidity, being prepared is essential. Here are five steps you can take now to get your home ready for soaring temperatures.

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1. Grow Plants Outside Windows

The Government website recommends planting outside your windows to provide shade, especially for south-facing windows. While you may not cultivate a new plant from scratch before Sunday, relocating established windowsill planters can work well. Plants outside can shade the glass, while plants inside may help cool the air. Blinds and curtains indoors do not prevent the glass from warming up, which can dramatically raise room temperature.

2. Install External Shutters or Awnings

Another government-recommended method is fitting external shutters to limit sunlight heating up your windows. These shade the interior and prevent temperatures from soaring on the glass. If a lengthy installation is not feasible, temporary awnings in gardens can provide shade for windows and doors.

3. Set Up a Temporary Bedroom

Many people sleep in the hottest room in the house without thinking. Creating a temporary bedroom in a cooler spot could mean the difference between a restful night and hours of tossing and turning. Ensure your chosen spot is dark and cool. Dr Lindsay Browning, a sleep expert with a doctorate in insomnia and founder of Trouble Sleeping in Wokingham, says: “Hot air rises, so if you live in a house with multiple floors, the upstairs bedrooms are often the warmest. During a heatwave, it might be worth temporarily sleeping in a downstairs bedroom, spare room, or even the living room if it is noticeably cooler.”

4. Invest in the Essentials

Setting aside a bit of cash for comfort and safety is worthwhile and needn't cost a fortune. A pack of gel ice packs rotated in the freezer can make a world of difference. If temperatures stay below 35°C, a mechanical fan can effectively keep you cool. Alternative bedding made from moisture-wicking fabrics like bamboo and cotton can help you stay dry and comfortable. For elderly relatives, young children, or pets, installing air conditioning could be a sound investment.

5. Check All Appliances

The Government advises checking that fridges, freezers, and fans are working properly—for example, by ensuring food remains cold or frozen. If you have a ventilation system, switch it on and operate it in 'summer mode' if available. Inspecting appliances ahead of time allows you to arrange maintenance and prevent breakdowns when you need them most.

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