When I see the term underpinning, i'm thinking having the cabin anchored to the foundation. I don't see where a vapor barrier comes into play with the term underpinning. What does underpinning mean to your insurance company?
around these parts when a building is built post on pad, underpinning is the skirting that runs from the floor joists down to the ground to stop the elements or critters from getting under the building. Not for structural support but rather aesthetics, insurance and environmental reasons. Often insulated and when circulation eliminated vapour barrier becomes a concern.Exactly what is “Underpinning “?