Never do this to glass doors during a storm.

(Dan Tri) - A fatal misunderstanding about glass doors in severe stormy weather can lead to danger to your home.

During Typhoon Yagi in 2024, many images recorded glass structures shattering when they could not withstand winds of up to level 12, 13, gusting to level 15 when making landfall in Quang Ninh .

Thousands of pieces of broken glass not only cause property damage but also pose many potential life-threatening risks to people inside buildings with large glass windows.

Glass structures are at risk of breaking and collapsing every time a storm passes by (Photo: Nam Anh).

Many people believe that when facing a big storm, glass doors will be bent due to the impact of air pressure, so it is necessary to open the door slightly when seeing signs of bending or bulging of the glass door to avoid breaking the glass.

CBS News quoted Dr. David Henderson - James Cook University's tornado test station with 30 years of research experience, theoretically opening the door during a storm can allow pressure to circulate between the outside and inside spaces, thereby keeping the roof tightly sucked into the building below.

However, in practice this method is not effective.

“Wind direction during storms can change rapidly. If you have open windows or open spaces, windows can become active agents in blowing off the roof because the wind is blowing hard, putting pressure on the structure and pulling the roof off,” said Dr. Henderson.

When a tornado or strong wind occurs, the air inside the space will have a strong circulation, causing the glass door to swell. However, it is not the pressure inside the closed space but the strong wind that causes damage to the glass door.

Experts recommend not opening windows when there are thunderstorms or strong winds outside to ensure safety (Illustration: Getty).

According to research from McGill University in Canada, strong winds carrying heavy objects that hit glass doors are the cause of broken glass doors. Therefore, the idea of “opening glass doors during storms” is not practical.

When inside structures with glass doors in a hurricane area, keeping the doors closed will give the home or space an extra layer of protection for people and property inside.

“If our houses were open boxes and we could create large openings on both the windward and leeward sides, most of the wind would blow straight through, reducing the stress on the structure,” shares McGill University’s Office of Science and Society.

But our homes are not open boxes. The passages and doors between rooms, cabinets, furniture, corners… make it impossible for the wind to blow straight through the house but instead hit the walls and other things.”

However, experts also recommend that in severe weather conditions, the best way is to stay away from glass areas and move to a safe place such as lower floors.

One of the biggest dangers during hurricanes and tornadoes is flying debris that can injure people and animals. Anything from tree branches to roof tiles can become a hazard in high wind conditions.

Source: https://dantri.com.vn/khoa-hoc/tuyet-doi-dung-lam-viec-nay-voi-cua-kinh-khi-bao-den-20250721114346251.htm