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

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

2026-06-26T15:44:04Z

‎11.1.4.2. Scuppers and Overflows

2026-06-26T15:43:48Z

‎11.1.4.2. Scuppers and Overflows

2026-06-26T15:24:41Z

‎11.1.4.2. Scuppers and Overflows

2026-06-26T15:21:27Z

‎11.1.4.2. Scuppers and Overflows

2026-06-26T14:22:02Z

‎11.1.4.2. Scuppers and Overflows

2026-06-26T13:53:01Z

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

2026-06-24T20:24:47Z

‎13.2.2. Fabrication and Finish

2026-06-24T20:21:15Z

‎12.3.2.7. Railings, Ladders, and Other Attached Structures

2026-06-24T18:56:23Z

‎12.2.1. Material Properties

2026-06-24T18:50:50Z

‎12.1.3.3. Separation Between Details

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 | 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>

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 | 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>

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 <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,

@@ 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 roof 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'' 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>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,

@@ Line 2,256: / Line 2,256: @@
 |-
 |-
-| colspan="1"; style="text-align:center;width:450px;" | '''Figure 11.1.4.2.-A Overflow location relative<br>drainage plane at primary drain'''<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 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]]

← Older revision		Revision as of 20:24, 24 June 2026
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	<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>

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 </li></ol>
-====12.2.1.4. Liquid Membrane Flashing====
+====12.2.1.4. Fasteners====
 <ol>

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 <li>[https://rpm.rcabc.org/index.php?title=SBS_Roof_Systems_Standard#12.3.2.1._General_Requirements_for_Flashing_Penetrations Article 12.3.2.1.] in the "RGC Standard for SBS-modified Bituminous Membrane Roofs".
 <li>[https://rpm.rcabc.org/index.php?title=Hot_Rubber_Roof_Systems_Standard#12.3.2.1._General_Requirements_for_Flashing_Penetrations Article 12.3.2.1.] in the "RGC Standard for Hot Fluid-applied Rubberized Asphalt Roofs".
 <li>Where alternate methods are not available in this Standard, or where the space between penetration flashings and any change in plane (e.g., ''curb'', sleeper, ''parapet'') is less 203.2 mm (8”), a Variance request shall be submitted to the '''''Guarantor''''' by the ''Design Authority'' following the Variance requirements in [[#1.1.3.6. Variances | Article 1.1.3.6.]]
 </li></ol>