What Causes a Car Roof to Leak?
2 Answers
It may be caused by a sunroof leak or failure of the car's waterproof sealant. Below is relevant information about sunroofs: 1. Functions of a Sunroof: It can rapidly cool down the car, eliminate fogging, and quickly exchange fresh air. Opening the sunroof while driving can swiftly increase the air circulation speed inside the car, thereby improving ventilation in the cabin. 2. Precautions for Sunroof Use: Open the sunroof in traffic jams to prevent exhaust fumes from entering the car. During traffic congestion, all vehicles are stationary, and exhaust fumes inevitably disperse in the air. Open the sunroof after exposure to sunlight to balance the interior temperature. In hot summers, after the car has been exposed to intense sunlight, the interior temperature becomes extremely high. At this time, the owner should promptly open the sunroof.
Last time, my car's roof leaked and it was quite annoying, especially during the spring rainy season. While driving in the rain, water suddenly dripped inside the car, soaking the carpets and leaving a lingering musty smell. Upon inspection, I found that the sealing strip at the top of the windshield had aged and cracked, shrinking under sunlight exposure and causing leaks. Another common issue was the clogged drainage holes of the sunroof, where fallen leaves blocked the water and caused backflow. I immediately went to the repair shop to clean it and replace the new sealing ring, which took about an hour to fix. Now I’ve developed a habit of using a car vacuum to clean the sunroof tracks every quarter and testing the drainage with water before the rainy season. If I had maintained it diligently earlier, I wouldn’t have suffered. I suggest everyone not wait until problems arise to take action.
