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Is there a counterpart of "9.6 Glass" for part 3 buildings?

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sunyaer

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Toronto
In Ontario building code, there is section "9.6 Glass" for a bunch of applications for houses and small buildings. Is there a counterpart of "9.6 Glass" for part 3 buildings? If not, what is the standard for similar applications as the following "9.6.1.1. Application"?

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Section 9.6. Glass
9.6.1. General
9.6.1.1. Application
(1) This Section applies to,
(a) glass in,
(i) interior windows and interior doors and their sidelights,
(ii) clothes closets,
(iii) site-built exterior windows, doors and skylights,
(iv) shower or bathtub enclosures,
(v) glazed panels and partitions, and
(b) the protection of glass.
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Nothing specifically, but it would be part of the lateral loading requirements that an engineer would be required to undertake in Part 4.
 
tmurray said:
Nothing specifically, but it would be part of the lateral loading requirements that an engineer would be required to undertake in Part 4.
Click to expand...
in Section 9.6. Glass, the materials standards are listed as:
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9.6.1.2. Material Standards for Glass
(1) Glass shall conform to,
(a) CAN/CGSB-12.1-M, “Tempered or Laminated Safety Glass,”
(b) CAN/CGSB-12.2-M, “Flat, Clear Sheet Glass”,
(c) CAN/CGSB-12.3-M, “Flat, Clear Float Glass”,
(d) CAN/CGSB-12.4-M, “Heat Absorbing Glass,”
(e) CAN/CGSB-12.8, “Insulating Glass Units”,
(f) CAN/CGSB-12.10-M, “Glass, Light and Heat Reflecting”,
(g) CAN/CGSB-12.11-M, “Wired Safety Glass”, or
(h) ASTM E2190, “Insulating Glass Unit Performance and Evaluation”.
(2) Mirrored glass doors are permitted to be used only at the entrance to clothes closets and shall conform to the
requirements of CAN/CGSB-82.6-M, “Doors, Mirrored Glass, Sliding or Folding, Wardrobe”. (See Appendix A.)
(3) Mirrored glass doors reinforced with a film backing shall meet the impact resistance requirements specified in
CAN/CGSB-12.5-M, “Mirrors, Silvered”.
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While in part 4 , only two standards are listed as:
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4.3.6. Glass
4.3.6.1. Design Basis for Glass
(1) Glass used in buildings shall be designed in conformance with,
(a) CAN/CGSB-12.20-M, “Structural Design of Glass for Buildings”, using an adjustment factor on the wind load, W,
of not less than 0.75, or
(b) ASTM E1300, “Determining Load Resistance of Glass in Buildings”, using an adjustment factor on the wind load,
W, of not less than 1.0.
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Question:

Do the part 4 standards CAN/CGSB-12.20-M, “Structural Design of Glass for Buildings” & ASTM E1300, “Determining Load Resistance of Glass in Buildings” reference the standards in 9.6.1.2. Material Standards for Glass? (I don't have these standards at hand.)
 
No, the standards referenced by Part 4 are how to calculate the structural loads.

The standards listed by Part 9 are the manufacturing standards.

In Part 4, the engineer will take the structural values supplied by the glass manufacturer to perform their calculations.

In Part 9, the manufacturing standards establish structural values (through the control of the manufacturing process), which we then apply to tables in Part 9.
 
tmurray said:
No, the standards referenced by Part 4 are how to calculate the structural loads.
......
Click to expand...
I downloaded CAN/CGSB-12.20-M, “Structural Design of Glass for Buildings” (M89 version, maybe old), it did list (2.1.1. of CAN/CGSB-12.20-M, “Structural Design of Glass for Buildings” ) most of the standards referenced in 9.6.1.2. Material Standards for Glass.

Am I missing something?
 
No, it is just establishing calculation procedure based on glass manufactured using those manufacturing procedures.
 
tmurray said:
No, it is just establishing calculation procedure based on glass manufactured using those manufacturing procedures.
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How to design (for example, follow which clause) shower or bathtub enclosure in buildings of part 9 , and buildings of part 3?
 
Part 9 provides a greater degree of guidance because there is a potential that users of that part may not have as much understanding of issue related to construction and use. This is in contrast to Part 3 buildings, which usually have multiple design professionals involved, who have a greater degree of understanding of these issues. It basically allows architects and engineers to utilize professional discretion to a greater degree.

In all likelihood, architects and engineers will select glazing that does comply with the standards in Part 9 for the most part for two reasons: the first being that it complies with industry standard safety expectations, the second being that manufacturers are unlikely to produce commercially available glazings that do not meet Part 9 requirements.

Keep in mind the requirements between 9 and 3 are not a 1-to-1 comparison. Some things are regulated in one part, but not in another. At the national level, there are different committees that update requirements in each and the communication between them is not always good. It is only recently that they have been pushing for more consistency between the Parts.
 
Interestingly, I was just going through the changes of the 2020 version of the national code and noted a new inclusion for safety glazings around tubs and showers.
 
tmurray said:
Part 9 provides a greater degree of guidance because there is a potential that users of that part may not have as much understanding of issue related to construction and use. ....
Click to expand...
How does the contractor of the glass enclosure of shower or bathtub in part 9 buildings know the number of supports and size of anchors? (from the manufacturer manual?)
 
sunyaer said:
How does the contractor of the glass enclosure of shower or bathtub in part 9 buildings know the number of supports and size of anchors? (from the manufacturer manual?)
Click to expand...
Yes. It would include all attachment requirements from the manufacturer.
 
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