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  1. K

    Glazed openings area - Ontario Building Code

    How to calculate glazed opening for limiting distance calculations (single detached residential)? Include window frames or not? And I've seen both done in practice. Just want to know what is the correct way. There is no formal definition of 'glazed opening' in the OBC, unlike 'unprotected...
  2. S

    Interpretation of except as provided in Sentences (4) and / or (5)

    This is from Ontario Building Code Division B part 9: ----------------------------------------------------------------------------------------------------------------------------------- 9.10.9.14. Separation of Residential Suites ........ (3) Except as provided in Sentences (4) and (5)...
  3. S

    provision (6) as described in Section 1?

    Ontario Building Code SB-4 Section 2: ------------------------------------------------------------------------------------------------------------------------------------------------------- Measure A Fully Sprinklered Building Measure A satisfies 3.2.6.2.(1) provision (6) as described in...
  4. S

    Does OBC 4.2.5. Excavation deal with temporary or permanent excavation or both?

    Does Ontario building code part 4 "4.2.5. excavation" deal with temporary or permanent excavation or both?
  5. S

    Cs (slope factor) in snow loading

    Where does Ontario building code (or National building code) say about shingle roof of a house in relation to the slope factor (Cs) of snow loading? Does a material of roof (shingle, metal, etc.) affect the slope factor of snow loading? Where are the clauses in the code?
  6. S

    What importance category of building is a municipal water tower as per OBC?

    As per Ontario building code, what importance category of building is a municipal water tower, post-disaster, high or normal?
  7. S

    How to read and use TABLE SB 5.5-5–2017 (OBC SB-10)

    The following table is from OBC SB-10: TABLE SB 5.5-5–2017 (See Appendix A.) (Supersedes Table 5.5-5 in 2013 ANSI/ASHRAE/IES 90.1)...
  8. S

    Zone 0,1,2,3,4 in OBC SB-10 TABLE SB 9.4.2-2–2017

    The following is part of the table TABLE SB 9.4.2-2–2017 from Ontario building code SB-10 (page 61 of SB-10) ------------------------------------------------------------------------------------------------------------------- TABLE SB 9.4.2-2–2017...
  9. S

    What does "(A, B, C) (I-P)" refer to?

    The following is the table title from Ontario building code SB-10 Division 2 chapter 1 (page 25 of SB-10): ------------------------------------------------------------------------------------------------------------------- TABLE SB 5.5-5 (See Appendix A.) (Supersedes Table 5.5-5 in 2010...
  10. S

    membrane / sheathing

    In Ontario building code, "membrane" and "sheathing" are used thousands of times. When we are saying membrane in every day life, it means a thin sheet, like paper or wrapping sheet, while in OBC, a sheet of "gypsum board" can be called "gypsum board membrane", see OBC SB-2 2.3.4.(1). My...
  11. M

    Need clarification on Ontario building code for guardrails

    I'm trying to understand what is meant by section 3.3.1.17 'Guards' of the Ontario Building Code. link to building code: http://www.buildingcode.online/328.html Where it states: "openings through any guard that is required by Sentence (1) shall be of a size that will prevent the passage of a...
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