Hi,
We are remodeling an old 1930’s house in the Houston, TX area. The remodel includes a new addition to the existing house, which was built on concrete perimeter footings (on bell-bottom piers) and pier-and-beam — with traditional wood frame. We are thinking about building the addition with ICFs (Durisol) over a similar type of perimeter footing.
We are concerned though about the differences in how the foundation will respond to seasonal movements (clay) : namely that the weight induced by the ICF walls will make the differential movement between the old and new part of the house too great. And therefore create issues with sheetrock, plumbing, etc.
Does anyone have experience with this type of hybrid construction where the foundation supports wood framing on one side and ICF on the other, in an environment where soil seasonal changes are important ?
The main reasons for the ICF choice are : noise reduction, rot and insect resistance, wind resistance.
Thanks !