I Have a local sawmill that can provide white pine rough cut boards, 2×8 for external log siding at a very competitive price.
I am considering installing them flat on an OSB cladded stick built house, with a chinking space. Each course of boards would be separated by a 1×1 wood spacer, allowing the remaing 1×1 void to be used for chinking.
Do you have any experience of such an installation?
It should work, but make sure the boards are dry or they will pull from the chink when they do dry out. You should put a 1” piece of Grip Strip in the line for a backer before chinking. If there is not enough room left to allow a 1/4” thick bead of chink then place a line of masking tape in thespce and chink over it.