What is the problem with door squeaking?

[McBrooklyn]

Here are the relevant reasons for door squeaking: 1. Door hinge rust: The door hinge (hinge) has rusted. This phenomenon can usually be heard when opening or closing the door. The owner only needs to clean the hinge and apply some butter. 2. Aging door seal: The door sealing strip has aged. Door sealing strips that have not been maintained for a long time will basically have this problem. The best method is to buy a bottle of silicone grease and perform maintenance yourself. Apply the silicone grease evenly to the sealing strip, and after the strip absorbs it for an hour, wipe it off for good results. 3. Poor contact in the lock block: The door lock block has poor contact, gaps, or insufficient lubrication. You can apply butter to the lock block or wrap two layers of waterproof tape around the lock pin to solve the problem.