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(Draft) Notes to SBS Standard - Revision history
2026-04-28T20:42:50Z
Revision history for this page on the wiki
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James Klassen: /* A-7.1.3.4. Effective Thermal Resistance and Layering */
2026-01-28T15:58:51Z
<p><span dir="auto"><span class="autocomment">A-7.1.3.4. Effective Thermal Resistance and Layering</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 15:58, 28 January 2026</td>
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<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>====A-7.1.3.4. Effective Thermal Resistance and Layering====</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>====A-7.1.3.4. <ins class="diffchange diffchange-inline">{{strike| </ins>Effective <ins class="diffchange diffchange-inline">|| 2026-January-28 }} {{hilite | </ins>Thermal Resistance and Layering<ins class="diffchange diffchange-inline">|| 2027-February-1 }}</ins>====</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:{{hilite | 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. || 2023-June-16 }}</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:{{hilite | 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. || 2023-June-16 }}</div></td></tr>
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</table>
James Klassen
http://rpm.rcabc.org/index.php?title=(Draft)_Notes_to_SBS_Standard&diff=52594&oldid=prev
James Klassen: /* Notes to Part 13 */
2025-10-31T14:40:56Z
<p><span dir="auto"><span class="autocomment">Notes to Part 13</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 14:40, 31 October 2025</td>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===={{hilite | A-13.2.2.1.(4) Coefficient of expansion and securement of linear metal flashings|| 2026-October-31 }}====</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===={{hilite | A-13.2.2.1.(4) Coefficient of expansion and securement of linear metal flashings|| 2026-October-31 }}====</div></td></tr>
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</table>
James Klassen
http://rpm.rcabc.org/index.php?title=(Draft)_Notes_to_SBS_Standard&diff=52581&oldid=prev
James Klassen: /* Notes to Part 2 */
2025-10-31T14:30:18Z
<p><span dir="auto"><span class="autocomment">Notes to Part 2</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 14:30, 31 October 2025</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>===={{hilite | A-2.1.5.6. Non-veneered Panel Roof Decks || 2026-October-<del class="diffchange diffchange-inline">22 </del>}}====</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>===={{hilite | A-2.1.5.6. Non-veneered Panel Roof Decks || 2026-October-<ins class="diffchange diffchange-inline">31 </ins>}}====</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:{{hilite | In 2024, the "Special Interest Group for the Dynamic Evaluation of Roof Systems" (SIGDERS) completed a study of wood ''decks'' and the holding strength of mechanical fasteners used in membrane ''roof systems''. They found significantly low resistance values from all grades of non-veneered wood ''decks'' (e.g., oriented strand board, or OSB) when compared with 12.7 mm (1/2") fir plywood. As a result, the study recommended avoiding non-veneered wood panels for commercial roof decking|| 2026-October-31 }}.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>:{{hilite | In 2024, the "Special Interest Group for the Dynamic Evaluation of Roof Systems" (SIGDERS) completed a study of wood ''decks'' and the holding strength of mechanical fasteners used in membrane ''roof systems''. They found significantly low resistance values from all grades of non-veneered wood ''decks'' (e.g., oriented strand board, or OSB) when compared with 12.7 mm (1/2") fir plywood. As a result, the study recommended avoiding non-veneered wood panels for commercial roof decking|| 2026-October-31 }}.</div></td></tr>
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James Klassen
http://rpm.rcabc.org/index.php?title=(Draft)_Notes_to_SBS_Standard&diff=52479&oldid=prev
James Klassen: /* A-11.1.4.2. Scuppers and Overflows */
2025-10-29T22:15:11Z
<p><span dir="auto"><span class="autocomment">A-11.1.4.2. Scuppers and Overflows</span></span></p>
<a href="http://rpm.rcabc.org/index.php?title=(Draft)_Notes_to_SBS_Standard&diff=52479">Show changes</a>
James Klassen