So I was up on the roof cleaning the gutter on the weekend and I took a look at the aerial up there. I noticed that the parts that make up the barb of the arrow style - the left most part of the intricate picture below - were rusted and the paint was coming off them

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Is that an issue? or is it nothing to actually worry about - the main bits out along the shaft of the arrow are the important things (which were all looking fine)

Thanks in advance and apologies for the horrible depiction/description :)

Cheers