1.1GB Update takes 13GB space on disk

[HaHeisenberg]

So every time I'm updating Payday 2, it says the update's weight is 1-2GB but it won't update although I have about 10GB free space (it's SSD, can't make more). It would all go well if steam could count but needing 2gb it creates a file which weighs 13gb (for update 95.2 or freaking 22gb for update 95). Can I do anything about that? I don't want to clean the rest of the disk every time I need to update this.
http://imgur.com/FvXGWhI

[Tev]

PAYDAY 2 is unfortunately one of those games where the disk usage is pretty much skyhigh whenever it updates even the smallest patch.

You probably don't have this issue with any other game (at least to such extent), I presume.

[ KARR™]

To update the game, it copies the files needing to be patched to a temporary directory, patches them and then moves them back into the main folder again.

it does this so you can still continue to play your game offline if you want to even though an update is partway in progress. Payday2 has a very bad file structure to do this and it needs to copy a LOT of files which take up a LOT of space.

There are other games that are as bad, although Payday2 has been the worst i've seen to date.

You can't unfortunately get around needing the extra space, unless you completely uninstalled the game and re-installed everything every time an update happened.