전기요금을 10%나 절약해주는 창문 열차단 필름 VIDEO: The window sticker that cuts your electricity bill by 10%: Incredible see-through film blocks 70% of the sun's heat to save you from using air con

The window sticker that cuts your electricity bill by 10%: Incredible see-through film blocks 70% of the sun's heat to save you from using air con

Material is see-through like a normal window when temperatures are below 32C

It gets darker as temperatures rise to reject more heat on hotter days

The material could save people money on their air conditioning bills

전기요금을 10%나 절약해주는 창문 열차단 필름    온도가 올라가 날씨가 더워지면 창문으로 들어오는 태양열 70%를 차단해준다. 더 많은 열을 차단하기 위해 32C(89F) 이상의 온도에 노출되면 재료가 축소되고 어두워지며 32C 이하에서는 필름이 완전히 투명하며 열을 반사하지 않는다. 이 필름을 사용하면 에어컨 청구서에서 돈을 절약할 수 있다. 황기철 콘페이퍼 에디터 큐레이터 Ki Cheol Hwang, conpaper editor, curator

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By HARRY PETTIT FOR MAILONLINE 

PUBLISHED: 16:00 GMT, 8 November 2018 | UPDATED: 16:20 GMT, 8 November 2018

A heat-blocking film that you can stick on your windows could replace the humble air conditioner.

Scientists say the see through material keeps out 70 per cent of the sun's rays and automatically gets darker as temperatures rise to reject more heat on hotter days.

The material shrinks and becomes opaque (right; hand print) when exposed to temperatures of 32C (89F) or higher. Below 32C the film is fully transparent (left) and does not reflect heat

The team claims that if every exterior-facing window on your house were covered in this film, the building's air conditioning costs could drop by 10 per cent.

In the US, it's estimated that air conditioners use around six per cent of all electricity.

This costs $29 billion (£22 billion) annually - an expense that's expected to grow as thermostats climb with global warming.

https://www.dailymail.co.uk/sciencetech/article-6364283/The-window-sticker-cuts-heating-bill-10.html

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