We have a wooden garden swing mode from treated softwood which has been outside throughout the year since we bought it.
It does get a bit green and grotty over winter and need cleaning up a bit once the nice weather arrives.
We are considering covering it up over winter, but I'm not sure if this will do more harm than good; at the moment it may get wet but for most of the year it can also dry out again. I wonder if it will just be in a permanent damp environment if it has a plastic cover over it.
It should keep the rain and snow (if any) off it.
Has anyone any experience of covering treated softwood furniture up over the winter?
Cheers
Dave R