Tracking building code changes, and keeping them on the right track, can be a challenge. Codes are critical to the competitiveness of masonry, and The Team IMI approach has it covered.
AAC Tested for Seismic PerformanceTo clarify, while some local jurisdictions may place certain restrictions on AAC's use as the lateral force-resisting system of a building, the 2007 supplement to the International Building Code (IBC) permits it in seismic design categories (SDC) A through C and does not limit its use in any SDC for other uses such as partition walls. The International Residential Code (IRC) places no restrictions on AAC use in any seismic design category. AAC is one of the most rigorously-tested new materials to be code-approved and has undergone the close scrutiny of several official bodies in addition to the IBC such as the MSJC and BSSC. Further, its seismic performance has been extensively studied both in laboratory tests done by the University of Texas, Austin and in real life conditions around the world. |
Code Committees
Masonry Standards Joint Committee
MSJC develops and maintains masonry design and construction standards for building codes, including the Building Code Requirements for Masonry Structures (TMS 402/ACI 530/ASCE 5) and Specification for Masonry Structures (TMS 602/ACI 530.1/ASCE 6/). MSJC is chaired by IMI Director of Engineering Diane Throop, P.E., while other IMI staff serve on committees for AAC Masonry, Construction Requirements, Editorial, and Infills.
The International Code Council
ICC develops and maintains the entire family of "I-Codes," including the IBC for commercial construction and IRC for residential. IMI is actively involved in these committees at the state and local level.
MSJC is a recognized standard adopted by the ICC, and becomes part of the International Building Code and International Residential Code by reference.
American Society for Testing and Materials
IMI serves on ASTM committees developing material and installation standards for dozens of masonry-related materials and systems, including manufactured masonry units, mortar, fire safety, precast concrete and building materials.
CODE Did You Know?
MOVEMENT JOINTS : Designers, not contractors, are responsible.
The MSJC says that the design professional must locate movement joints and show them on the plans. [MSJC Chapter 1, section 1.2.2, plus the mandatory checklist]. The MSJC Specification portion [Section 3.3 E (6)] clearly says that the contractor is to “install movement joints.” The decision on where to place movement joints falls to the design professional.