July 14, 2006
by Canadian Architect
The prescriptive technical content (Parts 3 to 11) of the Ontario Building Code has been significantly updated, with over 700 changes.
Under a reformatting of the Code, the technical requirements have been compiled as Division B Acceptable Solutions. Division B may be used in the same manner as previous OBC technical content. Attributed objectives and functional statements have been developed with respect to all of the technical requirements in Division B. If a design literally does not conform to prescribed acceptable solutions in Division B, such design may still be acceptable if the design proponent can demonstrate that an alternative solution will perform as well as a design conforming to Division B.
The proponent must demonstrate that the alternative solution addresses all of the factors covered by the acceptable solution and the objective and functional statements attributed to the acceptable solution. It is anticipated that the ability to propose alternative solutions under this approach will facilitate innovation and flexibility in building design and construction.
The new OBC will come into force on December 31, 2006, although certain provisions pertaining to energy efficiency will be phased in through 2011.
For more information, please visit www.obc.mah.gov.on.ca/