Ontario Building Code (OBC) Compliance

1 Checklist for converting a single family dwelling unit to two units Ontario Building code (OBC) ComplianceThe following items should be checked when preparing an application for a second dwelling unit. Although every application is different, this list should represent the bulk of the items that are to be checked. Note: Where Compliance cannot be attained through OBC Part 9, OBC Part 11 can be utilized if the dwelling has been in existence for 5yrs or more. ITEM PART 9 - OBC code REFERENCE PART 11 CA Fire Resistance Rating assembly between the two dwelling units is to bea 45 min fire rated C152 C147 elements supporting fire ratedassemblies are to have a 45 min fire C147 assemblies around the furnace and othercommon areas ( public corridor, commonlaundry room)

2 Are to be a 45 min fire C152 enclosure is to be a 45 min fire rated C121 Sound Transmission Rating and floor assemblies separating the two dwellingunits are to have a 50 n/a Number of Exits and Exposure of one exit to the exterior is to be C134 C136 stair to be protected from fire n/a Room Size and Dimensions sizes, doorway sizes and ceiling C102 C103 C104 Windows and Spatial Separation C107 C108 C137 C171 C172 Alarms C175 Monoxide C197 Flame Spread Ratings finish, wall and n/a Electrical Facilities n/a Laundry Fixtures n/a Checklist for converting a single family dwelling unit to two units Ontario Building code (OBC) Compliance - MechanicalA) House has been in existence for less than 5yrs and Brand New HouseOne HVAC system for each apartment shall comply with OBC Ventilation Return-air from a dwelling unit shall not be recirculated to any other dwelling (10) Wall and Ceiling Assemblies.

3 1)Permitted Openings (1), (4) 2)Protection of Openings Fire Dampers Ceiling assembly is determined in conformance with the component additive method of the SB-2 and SB-3: 1)Permitted Openings in Membrane CeilingSB-2; ; , 2) Protection of Openings in Membrane Ceiling- Fire Stop Flaps SB-2; ; assembly is determined in conformance with the listed ULC assembly: 1)Permitted Openings in Membrane CeilingULC listing books 2)Protection of Openings in Membrane Ceiling -Fire Dampers and Fire Stop Flaps - (1) and (2) B) House has been in existence for 5yrs or moreWhere Compliance cannot be attained through OBC Part 9, OBC Part 11 can be utilized.

4 Table : (1), (1) to (3), (5), (11) and (12); (10); (10); (1); and ; C170- and ; ; ; ; (1) In addition, ensure: Ventilation 1) -WR and Cooking Appliance ; 2)Solid Fuel Burning Appliance - 3) Electric Heating - Separation of Service Room 1)Protection of Openings -Fire 370 General (1) Every sewage system shall be maintained so that, (a) the construction of the sewage system remains in accordance with, (i) the basis on which the construction and use of the sewage system was approved or required under the Act or predecessor legislation, as the case may be, and (ii) the requirements of the manufacturer of the sewage system, and (b)

5 All components of the sewage system function in their intended manner. (2) The land in the vicinity of a sewage system shall be maintained in a condition that will not cause damage to, or impair the functioning of, the sewage system. Interceptors (1) Every grease interceptor referred to in Article shall be maintained in accordance with , Maintenance of Grease Interceptors . Class 4 Sewage Systems (1) Septic tanks and other treatment units shall be cleaned whenever sludge and scum occupy one-third of the working capacity of the tank. Pressurized Distribution Systems (1) The pressure head at the furthest point from the pump in all distribution pipes shall be checked for Compliance with Articles and and the design specification at least every 36 months.

6 O. Reg. 332/12, Division B, Part 8. PART 9 HOUSING AND SMALL BUILDINGS Section General Application Section Reserved Section Materials, Systems and Equipment Concrete Lumber and Wood Products Metal Section Structural Requirements Structural Design Requirements and Application Limitations Specified Loads Deflections Foundation Conditions Section Design of Areas, Spaces and Doorways General Barrier-Free Design Ceiling Heights Living Rooms or Spaces within Dwelling Units Dining Rooms or Spaces within Dwelling Units Kitchens within Dwelling Units Bedrooms or Spaces in Dwelling Units and Dormitories Combined Spaces Bathrooms and Water Closet Rooms Hallways Doorway Sizes Section Glass General Section Windows, Doors and Skylights General Required Windows, Doors and Skylights Performance of Windows, Doors and Skylights Manufactured Windows, Doors and Skylights 371 Site-Built Windows, Doors and Skylights Installation Section Stairs, Ramps.

7 Handrails and Guards Application Stair Dimensions Stair Configurations Step Dimensions Ramps Landings Handrails Guards Construction Cantilevered Precast Concrete Steps Section Means of Egress General Types and Purpose of Exits Dimensions of Means of Egress Fire Protection of Exits Obstructions and Hazards in Means of Egress Doors in a Means of Egress Access to Exits Exits from Floor Areas Egress from Dwelling Units Egress from Bedrooms Signs Lighting Section Fire Protection Definitions and Application Occupancy Classification Ratings Building Size Determination Permitted Openings in Wall and Ceiling Assemblies Construction Types Steel Members Fire-Resistance and Combustibility in Relation to Occupancy, Height and Supported Elements Fire Separations Between Rooms and Spaces Within Buildings Service Rooms Firewalls Prevention of Fire Spread at Exterior Walls and Between Storeys Doors, Dampers and Other Closures in Fire Separations Spatial Separations Between Buildings Spatial Separation Between Houses Fire Blocks Flame Spread Limits Alarm and Detection Systems Smoke Alarms Firefighting Fire Protection for Construction Camps Fire Protection for Gas.

8 Propane and Electric Cooktops Section Sound Control Sound Transmission Class Rating (Airborne Sound) Required Sound Control Locations (Airborne Sound) Section Excavation General Depth Backfill Trenches Beneath Footings Section Dampproofing, Waterproofing and Soil Gas Control General Dampproofing 372 Waterproofing Soil Gas Control Section Drainage Scope Foundation Drainage Drainage Tile and Pipe Granular Drainage Layer Drainage Disposal Surface Drainage Section Footings and Foundations Application General Footings Foundation Walls Support of Joists and Beams on Masonry Foundation Walls Parging and Finishing of Foundation Walls Section Floors-on-Ground Scope Material Beneath Floors Drainage Concrete Wood Section Columns Scope General Steel Columns Wood Columns Unit Masonry Columns Solid Concrete Columns Section

9 Crawl Spaces General Access Ventilation Clearance Drainage Ground Cover Fire Protection Section Roof Spaces Venting Access Section Masonry and Insulating Concrete Form Walls Not in Contact with the Ground Application Masonry Units Mortar Mortar Joints Masonry Support Thickness and Height Chases and Recesses Support of Loads Bonding and Tying Lateral Support Anchorage of Roofs, Floors and Intersecting Walls Corbelling Control of Rain Water Penetration Protection During Work Reinforcement for Earthquake Resistance Corrosion Resistance Above-Ground Flat Insulating Concrete Form Walls 373 Section Masonry and Concrete Chimneys and Flues General Chimney Flues Chimney Lining Masonry and Concrete Chimney Construction Clearance from Combustible Construction Section Fireplaces General Fireplace Liners Fireplace Walls Fire Chamber Hearth Damper Smoke Chamber Factory-Built Fireplaces Clearance of Combustible Material Fireplace Inserts and Hearth-Mounted Stoves Section

10 Wood-Frame Construction Application General Fasteners Maximum Spans Notching and Drilling Anchorage Sill Plates Beams to Support Floors Floor Joists Wall Studs Wall Plates Framing Over Openings Roof and Ceiling Framing Subflooring Roof Sheathing Wall Sheathing Section Sheet Steel Stud Wall Framing General Size of Framing Installation Section Heat Transfer, Air Leakage and Condensation Control General Thermal Insulation Air Barrier Systems Vapour Barriers Properties and Position of Materials in Building Envelope Section Roofing General Roofing Materials Slope of Roof Surfaces Flashing at Intersections Eave Protection for Shingles and Shakes Underlay Beneath Shingles Asphalt Shingles on Slopes of 1 in 3 or Greater Asphalt Shingles on Slopes of Less Than 1 in 3 Wood Roof Shingles Cedar Roof Shakes Built-Up Roofs Selvage Roofing Sheet Metal Roofing Glass Reinforced Polyester Roofing Hot Applied Rubberized Asphalt Roofing Polyvinyl Chloride Sheet