Opening the loft hatch can rapidly cool a sweltering home by allowing trapped hot air to escape, according to experts. The trick, shared on social media, claims the thermostat drops instantly as warm air rises and vents out.
How the Loft Trick Works
Interior and building tips account house_by_luna explained on Instagram: 'Open the attic hatch when it's boiling hot upstairs… sounds mad, but it actually works and the hot trapped air is released. Thermostat dropped instantly.' One skeptical follower asked: 'Is your attic not boiling too though? We were up in ours and it's way way hotter than the house cause of wool insulation?' The account replied: 'The hot air rises. Opening the loft hatch gives all that trapped warm air upstairs somewhere to go, and if your loft is ventilated, some of that heat can escape altogether.'
Expert Endorsement
An expert speaking to the BBC confirmed: 'Hot air rises within houses, so if you have loft vents or windows you can open them to release some of the heat. The hot air can otherwise get trapped on the second floor, where you may be trying to sleep.' They added that extra insulation also helps keep heat out in summer and reduces energy bills in winter.
Ideal Home further advised: 'Opening your loft hatch can be a surprisingly effective way to cool your home. Heat naturally rises, which means the top floor is often the warmest part of the house. By opening the hatch, you're giving that trapped hot air a route to escape, helping to bring down the overall temperature indoors.' They recommended opening the hatch alongside a loft window for improved airflow.
Practical Tips for Hot Weather
During a heatwave, experts warn against opening windows at lower levels as this can let hot air in. Instead, opening the loft hatch allows heat to escape from the highest point. Closing blinds and curtains also helps keep interiors cooler. The UK has been hit by a severe heatwave with temperatures predicted to hit 39°C and 'tropical nights' disrupting sleep.
