My impression is that cob is mainly used in drier climates.Beekissed said:Just the usual, from what I can see. My sister is currently doing straw bale construction.
The cob mix has been used for centuries in one of the most moist environments I can imagine...most were lime washed afterwards, I'm sure. Whitewashing was done to soddies back in the day, on tree trunks, etc.
Here's an excellent link to a site with good info on cob and great pics:
http://www.cobprojects.info/