Just want to start by saying you guys are great for taking the time to answer our questions. I have a couple of questions. I am having a new roof put on my 1909 home. It has one cedar shake and 2 asphalts. I know it needs to be re-decked but what I was wondering is do you guys take off the original 1xs or just osb over the top? another quetion is I have a ridge vent now and 4 turtle vents down low on a hip roof the lower vents get clogged by birds nests did the previous roofer put these lower vents in to use them as intake vents? I have aluminum soffits with vents but dont know if there are actually vents cut under them.