The Ontario Building Code | Performance Level and Compensating Construction

3.17.2.2. Performance Level and Compensating Construction

(1) The performance level of a building after construction shall not be less than the performance level of the building prior to construction.

(2) For the purposes of Sentence (1), reduction of performance level shall be determined in accordance with Articles 11.4.2.1., 11.4.2.3., 11.4.2.5. and 11.4.2.6.

(3) Where proposed construction would reduce the performance level of an existing building, compensating constructionshall be required in conformance with Articles 11.4.3.1., 11.4.3.2., 11.4.3.4., 11.4.3.6. and 11.4.3.7.

(4) Section 11.5. applies in respect of the requirements of Sentences 11.4.3.4.(1), (3) and (4).

O. Reg. 332/12, Division B, Part 3; O. Reg. 151/13, ss. 3-27; O. Reg. 361/13, ss. 5-25; O. Reg. 368/13, ss. 3, 5, 7-12, 14-22, 25-32; O. Reg. 191/14, ss. 8-53.

Part 4
Structural Design

Section	4.1.	Structural Loads and Procedures
	4.1.1.	General
	4.1.2.	Specified Loads and Effects
	4.1.3.	Limit States Design
	4.1.4.	Dead Loads
	4.1.5.	Live Loads Due to Use and Occupancy
	4.1.6.	Loads Due to Snow and Rain
	4.1.7.	Wind Load
	4.1.8.	Earthquake Load and Effects
Section	4.2.	Foundations
	4.2.1.	General
	4.2.2.	Subsurface Investigations and Reviews
	4.2.3.	Materials Used in Foundations
	4.2.4.	Design Requirements
	4.2.5.	Excavations
	4.2.6.	Shallow Foundations
	4.2.7.	Deep Foundations
	4.2.8.	Special Foundations
Section	4.3.	Design Requirements for Structural Materials
	4.3.1.	Wood
	4.3.2.	Plain and Reinforced Masonry
	4.3.3.	Plain, Reinforced and Prestressed Concrete
	4.3.4.	Steel
	4.3.5.	Aluminum
	4.3.6.	Glass
Section	4.4.	Design Requirements for Special Structures
	4.4.1.	Air-Supported Structures
	4.4.2.	Parking Structures
	4.4.3.	Guards over Retaining Walls
	4.4.4.	Anchor Systems on Building Exterior
	4.4.5.	Manure Storage Tanks

Section 4.1. Structural Loads and Procedures

4.1.1. General