My door lock keeps freezing to the point I can’t open it, why does this happen?
...door knob but that won’t cause a freezing problem. It is the warm humid air
leaking out through upper floor door knobs that can freeze.
Solutions:
The most important thing would be to lower the humidity
level in your home if it is too high, so first hit the hardware store and pick
up a hygrometer to measure the ind...