I was just wondering if anybody has an earth contact house. I am thinking about building a 3 side earth contact house 40'X60'. It would be dug in to the point that it would have 3 full concrete sides then the roof eves would be about 1' - 1.5' off the ground. the exposed part of the house would have an additional 15' for a fully enclosed porch with a line of double pane windows the entire length of the porch. so the total box/shell would be 55'x60'. Anybody that has an earth contact is their anything special I should take into consideration?