2025-09-22 28HSE 編輯部
Typhoon Ragasa is approaching with significant force, and the Hong Kong Observatory predicts gale to storm-force winds, heavy rain, and storm surges this Wednesday (23rd). Coastal water levels may match those observed during Typhoon Hato in 2017 and Typhoon Mangkhut in 2018. If the storm moves closer, typhoon signal No. 8 or above may be issued.
Some residents have expressed concerns on social media, fearing that Ragasa could surpass Mangkhut’s destructive power. A common worry is that strong winds could blow window air conditioning units into homes. Regarding this, here’s what a senior renovation expert had to say:
Window air conditioners cannot be reinforced once installed, but reducing indoor air pressure by avoiding sudden door or window openings can help prevent the unit from being dislodged.
Prepare a thin wooden board matching your window size, along with duct tape, to temporarily seal any gaps if an accident occurs.
For those planning to install a new window air conditioner:
Use self-tapping screws to secure the unit to the mounting frame.
Add diagonal braces to the frame, anchoring them to the exterior wall for extra stability.
Apply silicone sealant along the base of the unit to prevent rainwater and strong winds from seeping inside. This also secures the unit’s casing to the frame, reducing the risk of it being blown indoors or falling out.
Homeowners should clear the area within three to four meters of the air conditioner, especially removing electronics and other items that could be damaged if the unit leaks or falls. It’s also advisable to turn off the power supply near the air conditioner and avoid using nearby electrical outlets.
Prepare old towels or clothes to absorb potential leaks, and have waterproof containers available to manage flooding if needed. Additionally, keep an emergency kit with valuables, documents, and essential clothing in case an evacuation to a hotel or community shelter becomes necessary.
Typhoon Mangkhut in 2018 left a trail of destruction, with multiple incidents of window air conditioners being blown into homes. In Shau Kei Wan, a window AC unit and its frame were blown indoors, hitting a woman on the head and sending her to the hospital. In Lai King, another air conditioner fell onto a bed, injuring a woman’s back and legs. A viral video from the storm captured the moment an air conditioner was ripped out of its frame and thrown into a bookshelf.
To reduce the risk of shattered glass, the Hong Kong Observatory recommends applying taping in an X-patterm to windows. This helps minimise damage and can prevent debris and broken glass from flying indoors.
As Typhoon Ragasa draws closer, preparation is key. Take action now to secure your home and ensure your safety during the storm.
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