Grade-level Waterproofing Standard - Revision history

James Klassen: /* 13.1.3.4. Gauge, Dimension Limitations, and Seams */

2026-09-28T20:35:52Z

‎13.1.3.4. Gauge, Dimension Limitations, and Seams

James Klassen: /* 1.3.3.5. Tie-ins, Additions, and Alterations to Existing Waterproofing */

2026-09-11T21:07:10Z

‎1.3.3.5. Tie-ins, Additions, and Alterations to Existing Waterproofing

James Klassen: /* 1.3.3.5. Tie-ins, Additions, and Alterations to Existing Waterproofing */

2026-09-11T21:06:14Z

‎1.3.3.5. Tie-ins, Additions, and Alterations to Existing Waterproofing

James Klassen: /* 11.1.1.2. Defined Terms */

2026-09-03T16:36:08Z

‎11.1.1.2. Defined Terms

James Klassen: /* 11.1.1.2. Defined Terms */

2026-09-03T16:06:34Z

‎11.1.1.2. Defined Terms

James Klassen: /* 14.3.2.7. Structures and Equipment */

2026-08-10T15:04:58Z

‎14.3.2.7. Structures and Equipment

James Klassen: /* 11.1.4.2. Scuppers and Overflows */

2026-08-10T15:02:48Z

‎11.1.4.2. Scuppers and Overflows

James Klassen: /* 7.2.1.3. Drainage Mats */

2026-08-06T18:25:24Z

‎7.2.1.3. Drainage Mats

James Klassen at 17:06, 26 June 2026

2026-06-26T17:06:54Z

James Klassen at 17:02, 26 June 2026

2026-06-26T17:02:44Z

Show changes

@@ Line 3,066: / Line 3,066: @@
 |  22+ || Butt Seams*
 |-
-|  rowspan="2" style="vertical-align:centre;text-align:center;"   | Up to 304.8 mm (12") || rowspan="2" style="vertical-align:centre;text-align:center;"  | 2% || 24 || rowspan="6" style="vertical-align:centre;text-align:center;"   |3048 mm (12"),<br>as specified by a<br>''registered professional'' || S-lock or Standing Seam<sup>†</sup>
+|  rowspan="2" style="vertical-align:centre;text-align:center;"   | Up to 304.8 mm (12") || rowspan="2" style="vertical-align:centre;text-align:center;"  | 2% || 24 || rowspan="6" style="vertical-align:centre;text-align:center;"   |> 3048 mm (12"),<br>as specified by a<br>''registered professional'' || S-lock or Standing Seam<sup>†</sup>
 |-
 |  22+ || Butt Seams*
@@ Line 3,098: / Line 3,098: @@
 | Up to 304.8 mm (12") || 22+ || ≤ 3048 mm (120") || Butt Seams*
 |-
-| Up to 152.4 mm (6")  || 24  || rowspan="3" style="vertical-align:centre;text-align:center;"   | >3048 mm (120”),<br>as specified by a<br>''registered professional'' || S-lock*<sup>†</sup>
+| Up to 152.4 mm (6")  || 24  || rowspan="3" style="vertical-align:centre;text-align:center;"   | > 3048 mm (120”),<br>as specified by a<br>''registered professional'' || S-lock*<sup>†</sup>
 |-
 | Up to 203.2 mm (8") ||  24  || S-lock*<sup>†</sup>

@@ Line 532: / Line 532: @@
 <li>the adjoining membranes must be compatible with each other and of the same membrane system type (e.g., Polymer-modified Bituminous Membranes),
 <li>an authorized technical representative for the ''manufacturer'' of the new membrane must provide signed and dated written consent for this detail,
-<li>the two areas must be isolated and separated from each other by a water cut-off as required below and illustrated in '''Figure 1.1.4.5.-A''':
+<li>the two areas must be isolated and separated from each other by a water cut-off as required below and illustrated in '''Figure 1.3.3.5.-A''':
 <ol>
 <li>a saw cut 12.7 mm (1/2”) wide and deep must be made in the new deck, at least 304.8 mm (12”) away from the adjacent ''waterproofing assembly'',

@@ Line 545: / Line 545: @@
 |-
 |-
-| colspan="1"; style="text-align:center;width:600px;" | {{hilite | '''Figure 1.1.4.5.-A'''<br>'''Water Cut-off for Waterproofing Membrane Tie-in'''<br>Forming part of Sentence 1.1.4.5.(2)|| 2027-June-11 }}<br><small>(Click to expand illustration)</small>
+| colspan="1"; style="text-align:center;width:600px;" | {{hilite | '''Figure 1.3.3.5.-A'''<br>'''Water Cut-off for Waterproofing Membrane Tie-in'''<br>Forming part of Sentence 1.3.3.5.(2)|| 2027-June-11 }}<br><small>(Click to expand illustration)</small>
 |-
 | [[File:Illustration Unavailable (Filler Image).png |class=img-responsive | link= | 500 px]]

@@ Line 2,150: / Line 2,150: @@
 <li>Words that appear in italics are defined in the [[Glossary | Glossary]].  Additionally, the following terms are used in this Part:
 <ol>
-<li>''Bi-Level Drain'' means a drain with two inlets, each at a different elevation; these drains are typically used on roofs supporting ''overburden'' and are not to be used as an ''overflow''.
+<li>''Bi-Level Drain'' means a ''drain'' with two inlets, each at a different elevation; these ''drains'' are typically used on roofs supporting ''overburden'' and are not to be used as an ''overflow''.
 <li>''Drain leader'', as used in this Standard, means "a pipe that is installed to carry ''storm water'' from a ''waterproofing assembly'' to a ''storm building drain'' or ''sewer'' or other place of disposal” ("British Columbia Plumbing Code", Division A, [https://free.bcpublications.ca/civix/document/id/public/bcpc2018/bcpc_2018dap1s14 Article 1.4.1.2., "Defined Terms"]).
 <li>''Flanged insert drain'' means a ''primary drain''
 <ol>
-<li>with a flat, broad flange that encircles, and is manufactured from the same material as, the drain opening or bowl,
+<li>with a flat, broad flange that encircles, and is manufactured from the same material as, the ''drain'' opening or bowl,
 <li>that is spun or hot-welded (not cast),
 <li>that typically is secured to the ''waterproofing assembly'' with screw-type mechanical fasteners, and
@@ Line 2,165: / Line 2,165: @@
 </li></ol>
 <li>''Primary drain'' means the primary means the primary collector of storm water for discharge, typically into a ''drain leader''.
-<li>''Drain'' means a fitting or device that is installed in a ''waterproofing assembly'' or roof to permit storm water to discharge into a ''drain leader''. (adapted from the "British Columbia Plumbing Code", Division A, [https://free.bcpublications.ca/civix/document/id/public/bcpc2018/bcpc_2018dap1s14 Article 1.4.1.2., "Defined Terms"]).
+<li>''Drain'' means a fitting or device that is installed in a ''waterproofing assembly'' to discharge storm water off the assembly, usually into a ''drain leader''. (adapted from the "British Columbia Plumbing Code", Division A, [https://free.bcpublications.ca/civix/document/id/public/bcpc2018/bcpc_2018dap1s14 Article 1.4.1.2., "Defined Terms"]).
-<li>''Scupper drain'' ("scupper"), which is primarily used on roofs, means an open or closed drain that conveys water laterally from one area of a ''project'' to another, or from the ''project'' directly to the exterior of the building.
+<li>''Scupper drain'' ("scupper"), which is primarily used on roofs, means an open or closed ''drain'' that conveys water laterally from one area of a ''project'' to another, or from the ''project'' directly to the exterior of the building.
-<li>''Secondary drain'' means a drain connected to a separate drainage system, typically situated at a higher elevation than a ''primary drain''.  An ''overflow drain'' is a type of ''secondary drain''.
+<li>''Secondary drain'' means a ''drain'' connected to a separate drainage system, typically situated at a higher elevation than a ''primary drain''.  An ''overflow drain'' is a type of ''secondary drain''.
 </li></ol>
 </li></ol>

@@ Line 2,162: / Line 2,162: @@
 <ol>
 <li>that serves as a safeguard when ''primary drains'' fail, and
-<li>which may be located in the ''waterproofing system'' field (for example, as a secondary drain) or at the perimeter of the ''waterproofing assembly''.
+<li>which may be located in the ''waterproofing system'' field (for example, as a ''secondary drain'') or at the perimeter of the ''waterproofing assembly''.
 </li></ol>
 <li>''Primary drain'' means the primary means the primary collector of storm water for discharge, typically into a ''drain leader''.

@@ Line 3,972: / Line 3,972: @@
 </li></ol>
 <li>Structural installations that do not incorporate pre-curbs must be fully enveloped with membrane, which shall be installed to conform to Article 10.3.2.3.
-<br>
+<br><br>
 :{|
 |-

@@ Line 2,258: / Line 2,258: @@
 |-
 |-
-| colspan="1"; style="text-align:center;width:450px;" | '''Figure 11.1.4.2.-A Overflow location <br>relative drainage plane'''<br>Forming Part of Article 11.1.4.2.<br><small>(Click to expand illustration)</small>
+| colspan="1"; style="text-align:center;width:450px;" | '''Figure 11.1.4.2.-A Overflow location <br>Relative to Drainage Plane'''<br>Forming Part of Article 11.1.4.2.<br><small>(Click to expand illustration)</small>
 |-
 | [[File:Illustration Unavailable (Filler Image).png|link= | 500 px]]

@@ Line 1,262: / Line 1,262: @@
 <ol>
-<li>Drainage mats shall conform to the requirements in [[#14.2.1.4. Drainage and Water Retention Materials | Article 14.2.1.4.]]
+<li>Drainage mats shall conform to the requirements in [[#14.2.1.4. Drainage Materials | Article 14.2.1.4.]]
 </li></ol>

@@ Line 4,004: / Line 4,004: @@
 <div id=NOTES></div>
-=[[Notes to SBS Standard | Notes to Standard]]=
+=[[Notes to GLW Standard | Notes to Standard]]=
 </div><!-- mainBodyDiv -->