Template:Part 3 - SBS - Revision history

James Klassen: /* General */

2022-03-08T23:07:46Z

‎General

James Klassen: /* Roofs with Ballast or Overburdens */

2022-02-24T15:04:02Z

‎Roofs with Ballast or Overburdens

James Klassen: /* Step 1: Calculate Specified Wind Loads */

2022-02-24T14:55:35Z

‎Step 1: Calculate Specified Wind Loads

James Klassen: /* General */

2022-02-24T14:53:14Z

‎General

James Klassen: /* General */

2022-02-14T17:48:43Z

‎General

James Klassen: /* Roofs with Ballast or Overburdens */

2022-02-14T17:48:23Z

‎Roofs with Ballast or Overburdens

James Klassen at 16:15, 5 January 2022

2022-01-05T16:15:14Z

James Klassen: /* {{hilite | Intent || 2021-October-30 }} */

2021-11-26T17:12:39Z

‎{{hilite | Intent || 2021-October-30 }}

James Klassen: /* General */

2021-11-26T17:11:35Z

‎General

James Klassen: /* General */

2021-11-26T17:08:41Z

‎General

@@ Line 66: / Line 66: @@
 ====<big>General</big>====
 <ol>
-<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://nrc.canada.ca/node/2786 ''Wind Uplift Resistance Calculator''] (formerly Wind-RCI), or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
+<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://nrc.canada.ca/en/research-development/products-services/software-applications/wind-load-calculators-roof-cladding-vegetated-roof-assembly ''Wind Uplift Resistance Calculator''] (formerly Wind-RCI), or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
 <li>When the geometry of a building exceeds the capabilities of the Wind-RCI calculator, the ''Design Authority'' must calculate wind loads in accordance with the ''British Columbia Building Code'', Division B, Part 4: Subsection 4.1.7., ''Wind Loads'', and in consultation with other sections of the ''British Columbia Building Code'' as they pertain to the determination of ''Specified Wind Loads''.  Acceptance of a roof for a '''''RoofStar Guarantee''''' is predicated on the assumption that the ''Design Authority'' has performed Due Diligence with respect to ''Specified Wind Loads'' and has provided the ''Contractor'' with sufficient information to construct a ''roof system'' that complies with the Code.
 <li>All roof ''Waterproofing Systems'' shall consist of the following three zones, illustrated in '''Figure 3.1'''.

@@ Line 123: / Line 123: @@
 ====<big>Roofs with Ballast or Overburdens</big>====
 '''NOTE''': the reader must consult the Design and Application requirements in '''12.1 Protected and Modified Protected Membrane Roof Systems''', together with requirements in '''Part 14 THE ROOF as a PLATFORM''' (with respect to ''Vegetated Roof Systems'').
-#When vegetation and its growing media is intended as either ballast or ''overburden'' on any membrane roof assembly, the ''Design Authority'' must, in addition to calculating the ''Specified Wind Loads'' for the ''roof assembly'', determine the ''Specified Wind Loads'' for the ''Vegetated Roof Systems'' (VRS), and the dimensions of the roof zones, using the [https://nrc.canada.ca/en/research-development/products-services/software-applications/wind-roof-calculators-internet-wind-rci '''WIND-VRA'''] online calculator tool or, in the alternative, another method that is its equal or superior.  Note that this online resource applies only to buildings described on the Wind-RCI website as "low rise" and of moderate height (limited to 20 m or 65 feet) with a roof ''Waterproofing System''.  Designing appropriate securement of a VRS on roofs taller than 20 m (65') or with slopes greater than 2:12 must be undertaken by a licensed design professional using current wind engineering practices, and must be acceptable to the ''Authority Having Jurisdiction'' (AHJ). Securement methods and details of a VRS, regardless of building height and roof slope, are the responsibility of the ''Design Authority''.
+#When vegetation and its growing media is intended as either ballast or ''overburden'' on any membrane roof assembly, the ''Design Authority'' must, in addition to calculating the ''Specified Wind Loads'' for the ''roof assembly'', determine the ''Specified Wind Loads'' for the ''Vegetated Roof Systems'' (VRS), and the dimensions of the roof zones, using the [https://nrc.canada.ca/en/research-development/products-services/software-applications/wind-load-calculators-roof-cladding-vegetated-roof-assembly ''Wind Load Calculator for Vegetated Roof Assembly''] or, in the alternative, another method that is its equal or superior.  Note that this online resource applies only to buildings described on the Wind-RCI website as "low rise" and of moderate height (limited to 20 m or 65 feet) with a ''waterproofing roof system''.  Designing appropriate securement of a VRS on roofs taller than 20 m (65') or with slopes greater than 2:12 must be undertaken by a licensed design professional using current wind engineering practices, and must be acceptable to the ''Authority Having Jurisdiction'' (AHJ). Securement methods and details of a VRS, regardless of building height and roof slope, are the responsibility of the ''Design Authority''.
-#VRSs that are not modular, and VRSs on buildings that do not conform to the parameter of the Wind-VRA calculator, must be engineered to resist ''Specified Wind Loads''.
+#VRSs that are not modular, and VRSs on buildings that do not conform to the parameter of the ''Wind Load Calculator for Vegetated Roof Assembly'', must be engineered to resist ''Specified Wind Loads''.
 #Ballasted loose-laid membrane ''roof systems'', and ''systems'' designed as ''PMRAs'' or ''MPMRAs'' that utilize gravel ballast, must be designed for adequate securement by
 ##calculating the ''Specified Wind Loads'' for the ''roof assembly''.
 ##selecting the appropriate ballast using
 ###the RGC ballast guide (see '''3.3.2 Ballasted Roof Systems''', and  '''12.1 Protected and Modified Protected Membrane Roof Systems''').
-###the [http://rpm.rcabc.org/images/2/2f/Dupont_508.2_Ballast_Design_Guide_for_PMR_Systems_%282020-02%29.pdf '''Dupont Tech Solutions 508.2 Ballast Design Guide for PMR Systems'''].
+###the [http://rpm.rcabc.org/images/2/2f/Dupont_508.2_Ballast_Design_Guide_for_PMR_Systems_%282020-02%29.pdf ''Dupont Tech Solutions 508.2 Ballast Design Guide for PMR Systems''].
 ###a custom-engineered ''system''.
 #When pavers are selected as ballast for a ''Protected'' or ''Modified Protected Membrane Roof System'', the ''Design Authority'' is responsible for determining the support and placement of pavers to resist wind uplift.

@@ Line 215: / Line 215: @@
 <span class="reference">''Specified Wind Loads'' are forces exerted by wind which, in the case of a membrane ''roof system'', both push and lift the ''roof system'' or its components.  Often, the upward or uplift forces are expressed as a negative value (negative pressure), but these are influenced by many variables including, without limitation, wind speed, building height, roof slope, wall openings, roof overhangs and ground roughness</span>.
-<span class="principles">''Specified Wind Loads'' for membrane roof ''Waterproofing Systems'' should be calculated using the available online[https://www.nrc-cnrc.gc.ca/eng/services/windrci/agreement.html '''Wind-RCI online wind calculator'''] or, in the alternative, another method that is its equal or superior (click [http://rpm.rcabc.org/images/5/5d/Sample_RCI_Report.pdf '''here'''] for a sample report).</span> When the Wind-RCI calculator is not suitable (as, for example, when a building exceeds 150 feet in height), the ''Design Authority'' must refer to the  ''British Columbia Building Code, Division B, Parts 4'' and ''Part 5'' for further guidance.
+<span class="principles">''Specified Wind Loads'' for membrane roof ''Waterproofing Systems'' should be calculated using the available online [https://nrc.canada.ca/node/2786 ''Wind Uplift Resistance Calculator''] (formerly Wind-RCI) or, in the alternative, another method that is its equal or superior (click [http://rpm.rcabc.org/images/5/5d/Sample_RCI_Report.pdf '''here'''] for a sample report).</span> When the ''Wind Uplift Resistance Calculator'' is not suitable (as, for example, when a building exceeds 150 feet in height), the ''Design Authority'' must refer to the  ''British Columbia Building Code, Division B, Parts 4'' and ''Part 5'' for further guidance.
-The report generated by the Wind-RCI calculator will specify the wind loads for the ''Corners'', the ''Edge'' ("perimeter") and the ''Field''.  These zone loads must be applied in Step 3 when determining the method of ''roof system'' securement.
+The report generated by the ''Wind Uplift Resistance Calculator'' will specify the wind loads for the ''Corners'', the ''Edge'' ("perimeter") and the ''Field''.  These zone loads must be applied in Step 3 when determining the method of ''roof system'' securement.
 ====Non-conforming Buildings====

@@ Line 66: / Line 66: @@
 ====<big>General</big>====
 <ol>
-<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://nrc.canada.ca/en/research-development/products-services/software-applications/wind-roof-calculators-internet-wind-rci ''Wind-RCI online wind calculator''], or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
+<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://nrc.canada.ca/node/2786 ''Wind Uplift Resistance Calculator''] (formerly Wind-RCI), or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
 <li>When the geometry of a building exceeds the capabilities of the Wind-RCI calculator, the ''Design Authority'' must calculate wind loads in accordance with the ''British Columbia Building Code'', Division B, Part 4: Subsection 4.1.7., ''Wind Loads'', and in consultation with other sections of the ''British Columbia Building Code'' as they pertain to the determination of ''Specified Wind Loads''.  Acceptance of a roof for a '''''RoofStar Guarantee''''' is predicated on the assumption that the ''Design Authority'' has performed Due Diligence with respect to ''Specified Wind Loads'' and has provided the ''Contractor'' with sufficient information to construct a ''roof system'' that complies with the Code.
 <li>All roof ''Waterproofing Systems'' shall consist of the following three zones, illustrated in '''Figure 3.1'''.

@@ Line 66: / Line 66: @@
 ====<big>General</big>====
 <ol>
-<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://www.nrc-cnrc.gc.ca/eng/services/windrci/agreement.html ''Wind-RCI online wind calculator''], or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
+<li><u>The ''Design Authority'' is responsible for the proper calculation of ''Specified Wind Loads'' for a roof ''Waterproofing System'', regardless of its design</u>, and must use the [https://nrc.canada.ca/en/research-development/products-services/software-applications/wind-roof-calculators-internet-wind-rci ''Wind-RCI online wind calculator''], or use the formulae in the ''British Columbia Building Code, Division B, Part 4'': Subsection 4.1.7.,'' Wind Loads'' {{hilite |(see ''The British Columbia Building Code'', Division B, Part 2:|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Article 2.2.1.2., ''Structural Design'']; Division C, Part 2: [https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2s22r2 Section 2.2., ''Administration'']; and Division B, Part 2: [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dcp2n ''Notes to Part 2'']{{hilite |)|| 2021-October-30 }}.  This includes roofs that support an overburden, including ''Vegetated Roof Systems''.
 <li>When the geometry of a building exceeds the capabilities of the Wind-RCI calculator, the ''Design Authority'' must calculate wind loads in accordance with the ''British Columbia Building Code'', Division B, Part 4: Subsection 4.1.7., ''Wind Loads'', and in consultation with other sections of the ''British Columbia Building Code'' as they pertain to the determination of ''Specified Wind Loads''.  Acceptance of a roof for a '''''RoofStar Guarantee''''' is predicated on the assumption that the ''Design Authority'' has performed Due Diligence with respect to ''Specified Wind Loads'' and has provided the ''Contractor'' with sufficient information to construct a ''roof system'' that complies with the Code.
 <li>All roof ''Waterproofing Systems'' shall consist of the following three zones, illustrated in '''Figure 3.1'''.

@@ Line 4: / Line 4: @@
 </div>
 <div style="text-align: left;">
-Click on the gif above to see the '''full high-definition video''', which illustrates why roof system attachment standards matter ('''NOTE''': the system shown in the video represents a mechanically fastened EPDM roof, constructed to '''''RoofStar Guarantee Standards'''''.  The membrane "flutter" in wind is normal for this type of roof system).
+Click on the gif above to see the '''full high-definition video''', which illustrates why roof system attachment standards matter ('''NOTE''': the system shown in the video represents a mechanically fastened EPDM roof, constructed to '''''RoofStar Guarantee Standards'''''.  The membrane "flutter" in wind is normal for this type of ''roof system'').
 </div>

@@ Line 19: / Line 19: @@
 ==={{hilite | Intent || 2021-October-30 }}===
-{{hilite | In December 2018 the Province of British Columbia released a revised edition of the || 2021-October-30 }}[http://free.bcpublications.ca/civix/content/public/bcbc2018/?xsl=/templates/browse.xsl ''British Columbia Building Code''] {{hilite | (the "Code"), based on the 2015 ''National Building Code of Canada''.  The 2018 Code includes a considerable expansion of the requirements in ''Division B, Part 4'' (see|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dbp4s41r2 ''4.1 Structural Loads and Procedures'']{{hilite |, '''4.1.7 Wind Load''') applicable to the loads exerted on a roof system by wind.  The careful reader will note that these Part 4 requirements apply to all Part 3 buildings and to some Part 9 structures|| 2021-October-30 }}.
+{{hilite | In December 2018 the Province of British Columbia released a revised edition of the|| 2021-October-30 }} [http://free.bcpublications.ca/civix/content/public/bcbc2018/?xsl=/templates/browse.xsl ''British Columbia Building Code''] {{hilite | (the "Code"), based on the 2015 ''National Building Code of Canada''.  The 2018 Code includes a considerable expansion of the requirements in ''Division B, Part 4'' (see|| 2021-October-30 }} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dbp4s41r2 ''4.1 Structural Loads and Procedures'']{{hilite |, '''4.1.7 Wind Load''') applicable to the loads exerted on a roof system by wind.  The careful reader will note that these Part 4 requirements apply to all Part 3 buildings and to some Part 9 structures|| 2021-October-30 }}.
 {{hilite | While the expansion of Part 4 addresses the calculation of dynamic wind loads experienced by a roof assembly, Part 5 (Environmental Separation) specifies how a roof system should be secured to resist ''Specified Wind Loads'' (see || 2021-October-30}} [http://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dbp5s52 ''5.2 Loads and Procedures'']{{hilite |, ''5.2.2.2 Determination of Wind Load'')|| 2021-October-30 }}.