Can anyone recommend a pre-finished vertical siding product similar to this that resembles weathered cedar? The house pictured is not my own, just an example of the look I like!

Has anyone removed or replaced insulation in their tongue and groove ceiling without removing the boards? We recently bought a house in Canada and would like to increase the insulation R value. We would really like to keep the ceiling as-is but also have it be cost-effective.

We’re starting to put things back together after painting and would love any suggestions on curtain colors.