DIDE220_Assignment_5_Osman_Shiraz

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DIDE220

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Jan 9, 2024

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WWW.YORKVILLEU.CA DIDE220 A SSIGNMENT 5 1 Assignment 5 Answer Sheet The following sheet should be utilized to complete the assignment effectively. Fill in the required columns to complete the assignment and create a PDF to hand in. Part 1a – Building Classification Question Answer Existing Building Area (square meters) 179.8 Existing Occupancy Classification(s) Group C Residential (According to Table 3.1.2.1. Major Occupancy Classification) New Building Area (square meters) 183.8 New Occupancy Classification(s) Group C Residential & Group E Retail (According to Table 3.1.2.1. Major Occupancy Classification) Building Classification o Part 9 OR o Part 3 According to 1.1.2.4. OBC Part 1b - Change of Use Review Division C, Table 1.3.1.4 to determine the following: Question Answer Is the conversion of the building considered a change of Use? o Yes OR o No 3.1.2.1. Classification of Building (2) A building intended for use by more than one major occupancy shall be classified according to all major occupancies for which it is used or intended to be used. 1.3.1.4. Permits Under Section 10 of the Act a change of the major occupancy of all or part of a building that is designated with a "Y" in Table 1.3.1.4. takes place, Part 2a – Renovation (Part 11) Review the Charts provided (SB-2, Tables 2.3.4 A – C) to complete the following: Question Answer (minutes) What is the total time assigned to the existing floor assemblies: Floors over Basement Assembly: Tongue and Groove Subfloor 0

WWW.YORKVILLEU.CA DIDE220 A SSIGNMENT 5 2 Wood Joists @ 400mm O.C. 10 TOTAL ASSEMBLY RATING (minutes) 10 Ground Floor to 2 nd Floor Assembly: Tongue and Groove Subfloor 0 Wood Joists @ 400mm O.C. 10 13mm Gypsum wood fibred plaster and lath 35 TOTAL ASSEMBLY RATING (minutes) 45 Roof Assembly: Asphalt Shingles 0 OSB Sheathing 0 Wood Rafters @ 400mm O.C 5 TOTAL ASSEMBLY RATING (minutes) 5 *Note: if items are not listed in the SB-2 charts, then they have a 0 minute rating and do not contribute to the assembly Part 2b –Construction Index Based on the Answers determined in Part 2a and using OBC, Division B, Table 11.2.1.1.A determine the Construction Index (C.I.) of the existing building. Floors Over Basement Other Floors Roofs Combustible/Non- Combustible Construction C.I # 0 45 0 Combustible According to The Construction Index Table 11.2.1.1A 2 Part 2c –Hazard Index Based on the occupancy type(s) and building areas determined in Part 1, and using the appropriate OBC, Division B, Tables 11.2.1.1.B-N, determine the Hazard Index (H.I.) of both the existing building and the proposed building. Note that each Table references an occupancy type and a building size. Existing Building Occupancy Type (Group) Hazard Index Group C 3 According to Table 11.2.1.1.I New Building Occupancy Type(s) Hazard Index Group C 3 According to Hazard Index Table 11.2.1.1.I Group E 3 According to Hazard Index Table 11.2.1.1.K Question (conclusion) Answer Based on the information above, is the Hazard Index of the New Building greater than the Hazard index of o Yes OR o No

WWW.YORKVILLEU.CA DIDE220 A SSIGNMENT 5 3 the Existing Building? Part 2d – Analyze the Results Based on your conclusion above, review Division B, Table 11.4.3.4.A to determine how the new space can comply with the OBC requirements. For additional upgrading, refer to Division B, Table 11.2.1.1.A as noted. This will give you a new C.I. number to comply with Question Answer What is the new building H.I (Part 2c) 3 What is the existing C.I.? (Part 2b) 2 What additional upgrading is required as per 11.4.3.4? According to Table 11.4.3.4.A: (a)Provide early warning system or (b)Comply with any A.C.’s in Col.4. What would be the new fire resistance ratings based on your answer above? (Division B, Table 11.2.1.1.A) Floors Over Basement Other Floors Roofs 30 30 0

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WWW.YORKVILLEU.CA DIDE220 A SSIGNMENT 5 4 Part 2e – Create a Solution Based on the Answers in Part 2A and Volume 2, SB-2, Table 2.3.4.A provided, determine what you would add to the existing assembly to achieve the new fire resistance rating. Assembly Existing Rating (Part 2a) Add to Assembly Time Assigned Total Rating of New Assembly Floors over basement 10 min. A layer of 12.7 mm type X Gypsum board 25 min. 35 min. Other floors 45 min. ---------- 0 45 min. Roof 5 min. --------- 0 5 min. Note: For “Add to Assembly” use the “Description of Finish” column, and for “Time Assigned”, use the “Time, min.” column of Table 2.3.4.A. Add the “Existing Rating” you determined in Part 2A to the “Time Assigned” Column to determine the “Total Rating of the New Assembly.”

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