I'm in the design stages of a smallish addition to our house. I am leaning towards using a cement based pre primed siding (anything good or bad to say about Hardiplank lap siding?). My concern is that after several coats of paint the siding may form a vapor barrier and trap moisture. I live in PA. Is this a concern? I could use Hardishingles which when installed would leave many small channels for vapor to escape, a lot more work and not the look I'm after.
Thank you for any thoughts,
Andy Everett