1 car size Garage / storage shed. 20 years old, 5/8 T 111 with wood rot,.I cut off the bottom and patched it with cement board. Now I plan to cover it all with new siding. I considered Hardi siding. I don't like leaving gaps as they recommend. I may put thinner wood back. Now I'm thinking about vinyl, never used it and don't know anything about it. Looking for advice and info.