What is the difference between the International Building Code (IBC) and the International Residential Code (IRC)?
The main difference between these two codes is that the International Building Code can be used to design any building or structure. In fact, the scope of the IBC states that its provisions apply to the "construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures."
The International Residential Code has a scope that is limited to one- and two-family dwellings and multiple single-family dwellings (townhouses) not more than three stories in height with a separate means of egress and their accessory structures.
What are the Building Codes used in the City of Redmond?
The City of Redmond does not have its own Building Code. The Washington State Building Code Council determines, through legislative action, which building codes will be used by the local jurisdictions throughout the State of Washington. See our codes and design requirements for a list of the current applicable construction codes, regulations, and local amendments.
Subject to Damage From:
|Frost Line Depth
||Slight to Moderate