As summer heat intensifies, a unique hack to keep cars cool has gone viral on TikTok.
A popular TikTok account known for sharing automotive tips and tricks has sparked interest with a short video demonstrating a creative way to block sunlight from the sunroof using aluminum foil, claiming it to be an “extremely effective” solution.
In the video, the creator partially opens the sunroof and inserts a piece of foil, similar to the common practice of using sunshades on the windshield. The aim is to reduce the amount of direct sunlight entering the car, which can turn the interior into an oven-like environment.
Beyond just the video, the creator engaged with followers in the comments, sharing that they have successfully applied this hack across different car models with positive results. The post quickly gained traction, sparking a lively discussion around the practicality of this simple solution.
Many social media users expressed fascination with the idea, admitting they had never considered using foil for sunroofs, despite its common use for windshields and side windows.
The hack even inspired a Facebook user to try it on their home windows to reduce indoor temperatures during the hottest part of the day.
Scientifically, aluminum foil has the ability to reflect a significant portion of sunlight and heat, slowing down the rate at which the car’s interior heats up. Garage Living, a garage specialist website, also recommends sunshades with foil backing, while acknowledging their bulkiness and lack of discreetness when parking outdoors.
Aside from this DIY foil approach, car owners can explore other popular and specialized heat-blocking solutions. One option is to invest in window tinting, which, for a few million VND and up, can effectively block a large portion of UV and infrared rays, significantly reducing in-car temperatures while maintaining aesthetics.
A more affordable alternative is to leave the windows slightly open when parking in the sun, creating an outlet for hot air to escape. However, this method comes with security concerns, especially when parking in secluded or unmonitored areas. Some suggest implementing this tactic only when parking in busy residential areas or guarded locations.
While most viewers applauded the foil hack for its ingenuity and ease of implementation, a few expressed concerns about potential glass damage. “I’m worried that the reflected heat from the foil might cause the glass to crack. Insulation made of foam seems safer,” commented one user.
Another questioned whether the reflected sunlight could create hot spots on the glass, leading to thermal shock.
However, the original poster confidently replied, “I’ve been doing this for 10 years across different cars, and I’ve never encountered any issues. Modern car glass is made of tempered glass, which can withstand heat and is far more durable than some might think.”
Others jokingly suggested the best solution was to “not buy a car with a sunroof in the first place,” acknowledging that while sunroofs add style and ventilation, they can be a nuisance in hot climates.
As summer temperatures soar, drivers remain eager for creative ways to keep their cars cool. The viral foil hack, though surprisingly simple, showcases a practical solution. However, car owners should carefully consider its suitability, safety, and aesthetic impact before giving it a try.
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