There is now a new decay system in Rust.

You now must feed your Tool Cupboard to keep your building from decaying. This upkeep system means you know exactly how long until your house begins to decay. Additionally, once it does begin to decay, it happens much faster. I tweaked the server side settings for how fast things do decay and lowered the speed by about 15-20% but it is still quite fast compared to what we’re used to with the previous decay system.

You can see more information about the new decay system below: