® Ministry of Municipal Affairs and Housing October 4, 2009 Dear Colleague; The

® Ministry of Municipal Affairs and Housing October 4, 2009 Dear Colleague; The Ministry of Municipal Affairs and Housing (MMAH) in partnership with the Ontario Building Officials Association (OBOA) and the Ontario Home Builders’ Association (OHBA) are pleased to introduce the Official 2010 Ontario Code and Construction Guide for Housing. Since 1990, the Code and Construction Guide for Housing has played an important role providing current, practical and accurate construction information to builders, building officials, designers, educators, students and others in the housing industry. The 2010 edition of the Ontario Code and Construction Guide for Housing builds on our 20 year history, is current to today's Building Code and contains many new and unique features. For more information about the Guide, its advantages, a free sample chapter and how to order your copy, visit: www.serviceontario.ca/publications We are happy to continue our successful collaboration developing supportive materials that are current and relevant to the entire industry, and encourage you to invest in this valuable resource. Sincerely David Brezer, Director Building and Development Branch Ministry of Municipal Affairs and Housing Lynn Balfour, President Ontario Building Officials Association James Bazely, President Ontario Home Builders’ Association Ministère de Affairs municipales et du Logement Le 4 octobre 2009 Madame ou Monsieur, Le ministère des Affaires municipales et du Logement (MAML), en partenariat avec l’Association des officiers en bâtiments de l’Ontario (OBOA) et l’Ontario Home Builders’ Association (OHBA), est heureux de vous présenter la version officielle 2010 du Ontario Code and Construction Guide for Housing. Depuis 1990, le Code and Construction Guide for Housing joue un rôle important en fournissant une information à jour, pratique et exacte aux constructeurs, aux agents du bâtiment, aux concepteurs, aux éducateurs, aux étudiants et à tous les intervenants de l’industrie du logement. L’édition 2010 du Ontario Code and Construction Guide for Housing, qui s’appuie sur 20 années d’expérience, est totalement conforme au Code du bâtiment actuel et comporte de nombreuses caractéristiques novatrices uniques. Pour de plus amples renseignements sur le guide et ses avantages, et pour obtenir un chapitre modèle gratuit et des instructions sur la façon de commander votre exemplaire, veuillez visiter : www.serviceontario.ca/publications Nous sommes heureux de poursuivre notre collaboration fructueuse avec l’industrie, collaboration qui a débouché sur la conception de ressources documentaires actualisées et pertinentes, s’adressant à toute l’industrie. Je vous encourage à acheter cet outil précieux. Veuillez agréer, Madame ou Monsieur, l’expression de mes sentiments distingués. David Brezer, directeur Direction du bâtiment et de l’aménagement Ministère des Affaires municipales et du Logement Lynn Balfour, présidente Association des officiers en bâtiments de l’Ontario James Bazely, président Ontario Home Builders’ Association © Queen’s Printer for Ontario, 2009 – Draft Version 2010 CODE AND CONSTRUCTION GUIDE Table of Contents i Table of Contents Housing Guide Preface Housing Guide Table of Contents 1. Start-Up 2. Foundations 3. Floor Framing 4. Room and Space Dimensions 5. Means of Egress 6. Fire Safety and Sound Control 7. Wall Systems 8. Roofing 9. Windows and Skylights 10. Fireplaces, Chimneys and Flues 11. Mechanical Systems 12. Plumbing and Electrical Facilities 13. Insulation, Air Barriers, and Vapour Barriers 14. Interior Finishes 15. Exterior Finishes 16. Garages, Carports, Decks and Porches Building Code for Housing Building Code for Housing Table of Contents Division A: Compliance, Objectives and Functional Statements TBD Division B: Acceptable Solutions Part 1 General Part 6 Heating, Ventilating and Air-Conditioning Part 9 Housing and Small Buildings Part 12 Resource Conservation Division C: Administrative Procedures TBD Supplementary Standards SB-1 Climatic and Seismic Information for Building Design in Ontario SB-2 Fire Performance Ratings SB-3 Fire and Sound Resistance of Building Assemblies SB-7 Construction Requirements for Guards SB-9 Requirements for Soil Gas Control Appendix A: Explanatory material for the Building Code 2006 Appendix B: Imperial Conversions of Metric Values Additional Material Building Code Cross References Plans Examination Checklists Inspection Checklists Forms Index - Housing Guide © Queen’s Printer for Ontario, 2009 – Draft Version 2010 CODE AND CONSTRUCTION GUIDE Means of Egress 5 - 1 MEANS OF EGRESS Among the most important provisions of the Code are those per- taining to the means of egress. These provisions regulate design and construction to allow people to move within and between rooms or spaces, as well as to exit and to enter the dwelling unit. Means of egress for stacked dwelling units are outside the scope of this Code and Guide which focuses on unstacked, single dwell- ing units. KEY POINTS Residential buildings must be designed and constructed to fulfill the following functions: • allow occupants a safe means of escape from a building in an emergency; • allow the safe passage of occupants from one floor to another; and • provide acceptable resistance to forced entry. © Queen’s Printer for Ontario, 2009 – Draft Version 5 - 2 Means of Egress 2010 CODE AND CONSTRUCTION GUIDE Figure 5.1 Terms Defining Means of Egress Dwelling Unit Room Room Hallway Landing Guard Handrail Room or space Horizontal Exit to an exterior protected open space with access to public thoroughfare Vestibule Means of egress (9.8.1.1) (9.9.1.1) Vertical egress GENERAL REQUIREMENTS BUILDING CODE REFERENCES DIVISION B 9.9.1.3. Occupant Load Exits, doors, stairs and ramps along with hallways, corridors and passage- ways represent the most common means of egress in dwelling units. The means of egress is a defined term in the Code which includes exits and access to exits. It refers to a continu- ous path of travel provided for the escape from any point in a building or in a contained open space to a sepa- rate building, an open public thor- oughfare, or an exterior open space that is protected from fire exposure from the building with access to an open public thoroughfare. Figure 5.1 illustrates the main components and terms that define means of egress. The following sections further discuss each of these in relation to the relevant Code requirements. The primary consideration of the Code is the safety of occupants, both under normal conditions of use and in emer- gency situations, such as in the case of fire. Under normal conditions of use, means of egress are intended to be functional and permit occupants to safely perform tasks such as moving furniture, carrying in groceries or serv- ing food. Under emergency conditions, the Code intends that occupants are pro- vided with a safe exit from the dwell- ing unit traveling through a properly designed means of egress. Based on this intent, the means of egress must not only be safe with respect to pedestrian movement, but must also be properly illuminated. EXITS BUILDING CODE REFERENCES DIVISION B 9.5.10.1. Width of Hallway Within Dwelling Unit 9.7.1.3. Bedroom Windows 9.8.1.1. General 9.9.1.1. Application 9.9.1.2. Fire Protection 9.9.2.1. Types of Exits 9.9.2.3. Elevators, Slide Escapes and Windows as Means of Egress 9.9.9.1. Travel Limit to Exits or Egress Doors Every dwelling unit must contain at least one exit which can be accessed directly without going through another dwelling unit, service room or occu- pancy. Dwelling units must be designed so that it is not necessary to travel up or down more than one sto- rey to reach a level served by an exit doorway within 1.5 m (5') of ground level. Additional exits may not be necessary where the uppermost floor level is served by an openable window with a sill not more than 1 m (3' 3") above the floor and not more than 7 m (23') above the adjacent ground level, pro- viding an unobstructed opening of not less than 1 m (3' 3") in height and 0.55 m (1' 10") in width or the floor level has direct access to a balcony. Refer to Figure 5.2. An additional exit is required for floor levels in dwelling units where the building contains a hallway less than 860 mm (2' 10") in width. This addi- tional exit must be provided near the end of the hallway furthest from the liv- ing area or in every bedroom served by the hallway. Refer to Figure 5.3. © Queen’s Printer for Ontario, 2009 – Draft Version 2010 CODE AND CONSTRUCTION GUIDE Means of Egress 5 - 3 Figure 5.3 Exiting Requirements for Buildings With Narrow Hallways Option 1 - One Exit min 860 mm width hallway min 710 mm (28") Bedroom Bedroom Exit Exit Exit Exit Exit Exit Exit Bedroom Bath Bath Bath Bedroom Bedroom Bedroom Bedroom Bedroom Bedroom Living Area Living Area Living Area Living Area Living Area Living Area Option 2 - Multiple Exits second exit at end of hallway exit in each bedroom served Option 3 - Two Exits (9.5.10.1) min 710 mm (28") min 860 mm (34") Travel to a floor level served by an exit doorway is limited to one so storey up or down except where: 1. an openable window is provided, or 2. the floor level has direct access to a balcony Minimum dimensions of unobstructed opening in openable window: 0.55 m width x 1 m height (1' 10" w x 3' 3" h) Note: openable window with a minimum area of 0.35 sq. m uploads/Ingenierie_Lourd/ construction-guide-for-housing.pdf

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