(Draft) Notes to Hot Rubber Standard - Revision history

James Klassen: /* A-7.1.3.4. Effective Thermal Resistance and Layering */

2026-01-28T16:00:35Z

‎A-7.1.3.4. Effective Thermal Resistance and Layering

James Klassen: /* Notes to Part 13 */

2025-10-31T20:59:33Z

‎Notes to Part 13

James Klassen: /* Notes to Part 11 */

2025-10-31T18:38:47Z

‎Notes to Part 11

James Klassen: /* Notes to Part 13 */

2025-06-26T21:18:51Z

‎Notes to Part 13

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 <div id=A-7.1.3.4.></div>
-====A-7.1.3.4. Effective Thermal Resistance and Layering====
+====A-7.1.3.4. {{strike| Effective || 2026-January-28 }} {{hilite | Thermal Resistance and Layering|| 2027-February-1 }}====
 :In warm seasons, the roof surface may reach temperatures higher than 85°C (185°F), affecting the performance and stability of some insulation. Consequently, the requirement which limits panel size in single-layer applications ensures that inevitable gaps between adjacent panels are kept to a minimum.  Combining insulation types in a ''roof system'' may help mitigate these temperature swings and the consequence of thermal contraction. The ''Design Authority'' therefore must consider these variables when specifying materials and their installation.

← Older revision		Revision as of 20:59, 31 October 2025
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	Grade 316L stainless steel has high amounts of chromium and nickel, much like grade 304 stainless, and it also contains silicon, manganese, and carbon (in addition to iron). However, grade 316 stainless steel also contains 2 to 3 percent molybdenum (by weight), compared to only trace amounts found in 304 stainless steel. Higher molybdenum content produces a superior corrosion-resistant stainless steel. Grade 316L stainless steel is often considered one of the most suitable choices for marine applications.		Grade 316L stainless steel has high amounts of chromium and nickel, much like grade 304 stainless, and it also contains silicon, manganese, and carbon (in addition to iron). However, grade 316 stainless steel also contains 2 to 3 percent molybdenum (by weight), compared to only trace amounts found in 304 stainless steel. Higher molybdenum content produces a superior corrosion-resistant stainless steel. Grade 316L stainless steel is often considered one of the most suitable choices for marine applications.
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		+	<div id=A-13.2.2.1.(4)></div>
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		+	===={{hilite \| A-13.2.2.1.(4) Coefficient of expansion and securement of linear metal flashings\|\| 2026-October-31 }}====
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		+	{{hilite \| The coefficient of thermal expansion is the mathematical expression of linear movement one can expect of a particular metal when it is exposed to changes in temperature. Alloys will change these properties, which is why it is important to know the metal's composition. \|\| 2026-October-31 }}
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		+	{{hilite \| Because the degree of linear movement increases with flashing length, the ''registered professional'' responsible for designing ''linear metal flashing'' securement should consider anchoring the mid-point of very long flashings to allow for bi-directional expansion. However, each solution presents its own challenges. Affixing flashings at an end or in the middle forces expansion and contraction away from the anchoring point. This must be considered when designing a system of flashings where each length of material is attached to another. \|\| 2026-October-31 }}

	===<big><span class="reference">Notes to Part 14</span></big>===		===<big><span class="reference">Notes to Part 14</span></big>===

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 ====A-11.1.4.2. Scuppers and Overflows====
-:The primary function of an overflow is to keep a roof from collapsing when primary roof drains are plugged or cannot drain heavy rainfall.  New and existing buildings should incorporate overflows to handle large rain events.  Refer to the "British Columbia Building Code" and the "British Columbia Plumbing Code" for drain sizing and location requirements.
+:{{hilite | The primary function of an ''overflow'' is to keep a roof from collapsing when primary roof drains are plugged or cannot drain heavy rainfall.  New and existing buildings should incorporate overflows to handle large rain events.  Refer to the "British Columbia Building Code" and the "British Columbia Plumbing Code" for drain sizing and location requirements. || 2023-June-16 }}
 <div id=A-11.1.4.3.></div>