1805.2.1 Frost protection. ¹  Except where otherwise protected from frost, foundation walls, piers and other permanent supports of buildings and structures shall be protected from frost by one or more of the following methods:

1. Extending a minimum of 42 inches below finished grade;
2. Construction in accordance with ASCE 32-01; or
3. Erecting on solid rock.

Exception: Free-standing buildings or structures meeting all of the following conditions shall not be required to be protected:

1. Classified in importance category I (see Table 1604.5);

2. Area of 400 square feet or less; and

3. Eave height of 10 feet or less.

Footings shall not be cast on frozen soil.

Return

1 Connecticut Building Code