(Draft) RGC Standard for Grade-level Waterproofing Systems - Revision history

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

2026-09-11T21:06:53Z

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

James Klassen: /* 11.1.1.2. Defined Terms */

2026-09-03T16:36:35Z

‎11.1.1.2. Defined Terms

James Klassen: /* 11.1.1.2. Defined Terms */

2026-09-03T16:07:02Z

‎11.1.1.2. Defined Terms

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

2026-06-26T15:44:04Z

‎11.1.4.2. Scuppers and Overflows

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

2026-06-26T15:43:48Z

‎11.1.4.2. Scuppers and Overflows

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

2026-06-26T15:24:41Z

‎11.1.4.2. Scuppers and Overflows

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

2026-06-26T15:21:27Z

‎11.1.4.2. Scuppers and Overflows

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

2026-06-26T14:22:02Z

‎11.1.4.2. Scuppers and Overflows

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

2026-06-26T13:53:01Z

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

James Klassen: /* 13.2.2. Fabrication and Finish */

2026-06-24T20:24:47Z

‎13.2.2. Fabrication and Finish

@@ Line 530: / Line 530: @@
 <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 543: / Line 543: @@
 |-
 |-
-| 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 2,148: / Line 2,148: @@
 <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 2,163: / Line 2,163: @@
 </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 2,160: / Line 2,160: @@
 <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 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>
 |-
-| [[File:Illustration Unavailable (Filler Image).png|link= | 600 px]]
+| [[File:Illustration Unavailable (Filler Image).png|link= | 500 px]]
 |}
 </li></ol>

@@ 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>
 |-
-| [[File:Part 11 - Illustration - Figure 11.1.4.2.-A.png|link=https://rpm.rcabc.org/images/5/5b/Part_11_-_Illustration_-_Figure_11.1.4.2.-A.png | 600 px]]
+| [[File:Illustration Unavailable (Filler Image).png|link= | 600 px]]
 |}
 </li></ol>

@@ Line 2,245: / Line 2,245: @@
 <li>designed around the principles of a through-wall ''scupper'' when ''parapets'' are higher than 152.4 mm (6”) (Ref. Construction Detail [[SBS Through-wall Scupper Drain  | "Through-wall Scupper Drain"]]), and (irrespective of design) shall be
 <ol>
-<li>located no higher than 101.6 mm (4”) above the ''drainage plane'' at the drain (See '''Figure 11.1.4.2.-A'''; also see [[Notes to GLW Standard#A-11.1.4.2. | Note A-11.1.4.2.]]),
+<li>located no higher than 101.6 mm (4”) above the ''drainage plane'' (See '''Figure 11.1.4.2.-A'''; also see [[Notes to GLW Standard#A-11.1.4.2. | Note A-11.1.4.2.]]),
 <li>installed at least 25.4 mm (1”) lower than the lowest elevation of a door, window, or other low-clearance opening, to prevent water intrusion,
 <li>situated so that they freely and visibly discharge storm water,

← Older revision		Revision as of 20:24, 24 June 2026
Line 3,273:		Line 3,273:

	<li>Base flashing must be fabricated with a drip edge or a flat hemmed edge that, when installed, shall be at least 25.4 mm (1”) above the filtration and drainage course of an insulated ''waterproofing assembly'' or ''overburden'' (See '''Figure 13.3.2.3.-E''').		<li>Base flashing must be fabricated with a drip edge or a flat hemmed edge that, when installed, shall be at least 25.4 mm (1”) above the filtration and drainage course of an insulated ''waterproofing assembly'' or ''overburden'' (See '''Figure 13.3.2.3.-E''').
−	~~<li>Metal edge flashing must be fabricated with~~
−	~~<ol>~~
−	~~<li>a flange measuring no less than 101.6 mm (4") in width,~~
−	~~<li>a vertical drop and hemmed drip edge at least 50.8 mm (2"), and (when transitioning to a lower ''water-shedding systems'')~~
−	~~<li>a sloped drop of no less than 101.6 mm (4").~~
−	~~</ol></li>~~
−	~~<li>Metal edge flashing may be constructed with or without an upstand at the outside edge (Edge flashing intended as a drainage edge may perform best without an upstand).~~
	</ol></li>		</ol></li>