We have T1-11 siding that is looking the worse for wear: some rotted patches, some delamination. I don't know what is underneath it -- just the studs?
What would be involved in replacing it by Hardie-Plank? *Not* installing the H-P over the T1-11. Insulation between the joists, plywood over the joists, then Tyvek housewrap, then the Hardie-Plank?
Would it be possible to replace one panel at a time, or would I (or a contractor) have to do a whole wall in one go?
Am I missing anything?
Perce