The last pic of the roof is the worst spot. I personally don't think its too bad. just needs to be removed, cleaned and re done. I can try and upload more pictures but have bad luck with this site and pictures. e-mail me and I can sent whatever you wish.
Kenneth
k2pow@yahoo.com
818-635-9114
Chatsworth CA,
(I am attempting to attach the images and it say's they are too large. I apologize.. )