I have an outdoor aviary now and the biggest problem that I have is that the spiders love it and keep building webs everywhere! 🙄
I also have birds landing on it and pooping everywhere as I haven't got the top covered. So before Alfie goes out I spray it down with the hose and then scrub it down with some f10 bird safe disinfectant, diluted at the highest level to kill as much bacteria as possible, then rinse it off with the hose. I'm mostly worried about possible diseases carried by the local birds/wildlife being passed on to Alfie.
The hose clears most of the cobwebs... the scrubbing brush gets the rest!
It might be over the top but I'd rather make sure I've done everything I can to prevent it.