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How to prevent condensation on UPVC windows

October 7, 2025

窗邊滲水?一文教你「滴水不漏」解決! - EcHouse裝修服務平台

Condensation is a common problem on windows during the rainy season. This unpleasant phenomenon can be caused by increased humidity and temperature differences between indoor and outdoor environments. However, with the right methods and precautions, condensation can be effectively controlled. Using the right tips and tricks, you can easily create rainproof uPVC windows.

Overcoming Water Leakage Challenges
Harsh weather presents many challenges for homeowners, chief among them being water accumulation and seepage.

UPVC windows offer a powerful solution with their superior weatherproofing properties.

They are engineered to withstand heavy rainfall and prevent moisture from penetrating the walls.

Their multi-cavity profiles create an effective barrier, protecting your interior from the elements.

Sealed gaps and airtight construction minimize the risk of water infiltration, ensuring your home remains dry and safe.

Furniture and other surfaces are protected from mold and bacteria, contributing to a healthy indoor environment.

All uPVC window frames are effectively resistant to warping and damage caused by strong winds, providing added security and peace of mind during the rainy season. Given these advantages, maintaining uPVC windows during the rainy season can be very effective.

Why does condensation occur?

It’s primarily caused by warm, humid air encountering a cold surface, such as a window.

To prevent this, you can take several measures:

Moving curtains away from windows promotes air circulation.

In the kitchen, closing doorways and using exhaust fans can help remove humid air.

Regulating central air conditioning in bedrooms can reduce temperature differences.

Opening UPVC windows for short periods of time periodically can help with air exchange.

In the bathroom, closing the door after showering and slightly opening the window while showering can minimize moisture accumulation.

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