The houses are
rock wool insulated (r14) and passively vented to provide 4 - season living in a BC climate, or a drier colder climate.
Not exact matches
Even though they have
insulated it with four inches of
rock wool and even taken up space with a
rock filled planter along one side, it feels comfortable and generous.
Of course, we often
insulate basement / crawl space walls externally using -LCB- polyisocyanurate -RCB- hardboard or dense
rock wool rigidboard and then apply a drainage plain and membrane over top.