Section 12-A1809. SHALLOW FOUNDATIONS

 

Strike Section 1809.5 of the International Building Code in its entirety and insert new Section 1809.5 to the Building Code in its place to read as follows:

 

1809.5 Frost Protection.  Except where otherwise protected from frost, foundations and other permanent supports of buildings and structures shall be protected from frost by one or more of the following methods:

 

1. Extending below 30 inches (762 mm), the frost line of the locality;

 

2. Constructing in accordance with ASCE 32; or

 

3. Erecting on solid rock.

 

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

 

1. Assigned to Risk Category I, in accordance with Section 1604.5;

 

2. Area of 600 square feet (56 m2) or less for light-frame construction or 400 square feet (37 m2) or less for other than light-frame construction; and

 

3. Eave height of 10 feet (3048 mm) or less.

 

Shallow foundations shall not bear on frozen soil unless such frozen condition is of a permanent character.

 

 

authority

Section 10 of the Construction Codes Approval and Amendments Act of 1986 (Act), effective March 21, 1987 (D.C. Law 6-216; D.C. Official Code § 6-1409 (2012 Repl.)) and Mayor’s Order 2009-22, dated February 25, 2009, as amended.

source

Final Rulemaking published at 61 DCR 2782 (March 28, 2014 – Part 2).

EditorNote

The District of Columbia Building Code (2013), referred to as the “Building Code,” consists of the 2012 edition of the International Building Code as amended by the District of Columbia Building Code Supplement (2013)(12 DCMR A). The International Building Code is copyrighted by the International Code Council and therefore is not republished here. However, a copy of the text may be obtained at:http://publicecodes.cyberregs.com/icod/ibc/2012/index.htm?bu=IC-P-2012-000001&bu2=IC-P-2012-000019.