What are the signs that the seals on my rolling door need to be replaced?

Does the rolling door seal need to be replaced? These signs tell you
The seal of the rolling door is one of the key components to ensure its performance. It not only prevents dust and rain from entering the room, but also effectively insulates sound and heat, and even prevents the spread of fire in fire-resistant rolling doors. However, the seal may lose its original sealing effect due to wear, aging and other reasons during long-term use. Here are some signs that the roller shutter door seal needs to be replaced:

1. Physical damage to the seal strip
Wear or deformation: If the seal strip at the bottom or both sides of the rolling door is obviously worn, deformed or notched, it may cause a poor seal. For example, when the seal strip is no longer in close contact with the ground or rail, dust and small insects may enter the room through the gap.
Aging and cracking: The seal strip may age, crack and lose its elasticity under long-term exposure to sunlight, humid environment or frequent use. In this case, the seal strip cannot fit the rolling door and rail tightly, affecting the sealing performance.

2. Poor sealing when closed
Obvious gaps: When the shutter door is closed, check the gaps between the door body and the ground and the guide rail. If the gap width exceeds the design requirements (usually less than 2mm), it means that the seal may have failed.
Air and rain leakage: When it is windy or rainy, if there is air leakage or rain leakage indoors, it is likely caused by damage to the seal. This will not only affect the comfort of the indoor environment, but also cause the wall to become damp and moldy.

3. Abnormal operation
Increased operating noise: If the shutter door makes abnormal friction or vibration sounds when opening or closing, it may be that the sealing strip is worn and has poor contact with the guide rail or other components. In this case, not only will the sealing performance decrease, but it may also accelerate the wear of other components.
Operation jam: When the sealing strip is worn or deformed, it may interfere with the guide rail or other components during operation, causing the shutter door to jam. This not only affects the user experience, but may also damage the motor or transmission system.

4. Special signs of fireproof shutter doors
For fireproof shutter doors, the integrity of the seal is crucial. If the seal is damaged or aged, it may lead to a decrease in fire resistance. For example, if smoke is found leaking from the door gap during the smoke penetration test, it means that the seal needs to be replaced.

5. The importance of regular inspections
It is usually recommended to inspect the seals of rolling shutter doors once a quarter. During the inspection, focus should be placed on the integrity of the seal, the fit with the guide rail and the ground, and whether there are signs of aging and wear. If problems are found, the seal should be replaced in time to ensure the normal operation and performance of the rolling shutter door.

Summary
The replacement of the roller shutter door seal is not only to ensure its sealing performance, but also to extend the overall service life of the rolling shutter door. When the seal is worn, deformed, aged and cracked, or abnormal sounds and jams occur during operation, it may be a signal that the seal needs to be replaced. Regular inspection and timely replacement of seals are the key to ensuring the safe and efficient operation of the rolling shutter door.