Hiya, I'm thinking about building near Caribou Maine and the frost line is 60'' deep. I'd prefer to build on piers, I don't want or need a basement and it keeps things simple. I've come across a product called the footing tube, here's a link.
They are basically plastic tubes that come in several different sizes, the largest being 8' tall. The base is 2' wide and it tapers up to an 8" opening to pour in the concrete. It's my impression that on an LHBA home the first level of logs has their end joints rest on the same pier. Unless I use 4" logs it's probably not going to happen. I could probably fill a sonotube with concrete and wrap some plastic around it to get the same frost resistant effect but I like this product. It seems workable and it's easy to understand.
What is the traditional method you folks have been using to defeat the deep frostline?



Joined: 2010-01-29