
Alterations to Existing Buildings
Acceptable Solution #2 - Using New Upgrade Mechanisms
» Background
» Definitions for Categories of Work
» Procedure for Using New Upgrade Trigger Model
» Rehabilitation Projects (Flow Chart #1)
» Change of Use Projects (Flow Chart #2)
» Change of Major Occupancy Projects (Flow Chart #3)
» Addition Projects (Flow Chart #4)
» Table of Upgrade Levels (Objectives & Acceptable Solutions)
» Hazard Index Tables
Procedure for Using the New Upgrade Trigger Mechanism Model
The following steps outline a recommended procedure for using the new upgrade trigger mechanism model:
Step 1 – Determine the Appropriate Category of Work
This model is based on the following defined Categories of Work for each of the four Types of Projects:
| Rehabilitation Type Projects (See Flow Chart No. 1) |
Change of Use Type Projects (See Flow Chart No. 2) |
Change of Major Occupancy Type Projects (See Flow Chart No. 3) |
Addition Type Projects (See Flow Chart No. 4) |
Note: When a project involves more than one Category of Work, the most restrictive upgrade level shall be applied to the existing building.
Step 2 – Determine the Required Upgrade Level Based on the Category of Work for the Project
The required upgrade levels for Fire, Life & Health Safety; Structural Safety; and Accessibility for Persons with Disabilities may be determined using the appropriate Project Type Flow Chart for the applicable category of work:
For Rehabilitation Type Projects use Flow Chart No. 1.
For Change of Use Type Projects use Flow Chart No. 2.
For Change of Major Occupancy Type Projects use Flow Chart No. 3.
For Addition Type Projects use Flow Chart No. 4.
Step 3 – Determine the Objective and Acceptable Solution for Each Fire, Life and Health Safety;
Structural Safety; and Accessibility Upgrade Level
This model is based on four incremental upgrade levels for each of the Fire, life and health safety, Structural safety and Accessibility objectives. For each of the upgrade levels, the models states the objective of the upgrade level as well as the acceptable solution that is deemed to meet the intended objective of the applicable upgrade level. The objective statements and acceptable solution for each upgrade level are stated in the Table of Upgrade Levels.
Step 4 – Determine Any Other Requirements that may be Applicable
Other Building By-law requirements may be applicable to the existing building project. Review the Overall Conditions for the New Upgrade Trigger Model to determine if other requirements are applicable.
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