I have an old barn, insert glamour shot.
View media item 86529
It currently has very non sealed wood siding on it with ridged insulation in the walls. I will someday either replace the siding with new wood or more likely metal. I am putting OSB on the walls so I can use it as a shop. It will not be heated except the occasional use of a propane heater when it really cold and I have a project that can't wait.
Do I need a vapor barrier under the OSB?
View media item 86529
It currently has very non sealed wood siding on it with ridged insulation in the walls. I will someday either replace the siding with new wood or more likely metal. I am putting OSB on the walls so I can use it as a shop. It will not be heated except the occasional use of a propane heater when it really cold and I have a project that can't wait.
Do I need a vapor barrier under the OSB?