But if your interior doors are out of adjustment, they’ll rattle every time the breeze kicks up. The problem is always caused by a gap between the door stop and the door. When the door latches, it pushes the door toward the stop just a bit and holds the latch a little tighter, sometimes enough to silence the door.

When a closed door is shaking due to wind blowing, or changes in interior air pressure, the spring-loaded lock isn’t fitting well into the strike plate of the door. This is caused by the metal tab on the strike plate being bent away from the door and being unable to properly capture the latch.

Vibration may be caused by nearby traffic or subways, building mechanical systems, or simply normal human activity, such as walking across the floor. This vibration does not jeopardize the building’s structural integrity. Yet, while the actual movement may be minimal, human perception of motion is significant.

Change the placement of the speaker to gauge if it affects the wall vibrations. Move a wall-mounted speaker into an entertainment center, or distance it from the wall a few extra inches. Elevate speakers that sit on the floor onto a stand or isolation pad that fits it.

The following precautions help to reduce whole-body vibration exposure:

1. Limit the time spent by workers on a vibrating surface.
2. Mechanically isolate the vibrating source or surface to reduce exposure.
3. Ensure that equipment is well maintained to avoid excessive vibration.
4. Install vibration damping seats.

Fixing the Loose Doorknob or Handle

1. Remove the Knob or Handle. Exposed screws.
2. Remove the Base. After you have separated the doorknob from the spindle shaft, remove the base.
3. Find the Screws and Tighten.
4. Restore the Base and Put the Handle Back On.

That’s probably someone in your house opening a window or door. Pressure changes and it moves. Someone may have a late night smoking habit. Also if a window is open and a gust of wind hits it, this will also happen.