(Draft) VRA Standard - Revision history

James Klassen: /* 1.1.2.4. Quality Assurance */

2026-10-27T16:07:12Z

‎1.1.2.4. Quality Assurance

James Klassen: /* 7.2.1.2. Growing Media Specified by Others */

2026-06-25T21:39:30Z

‎7.2.1.2. Growing Media Specified by Others

James Klassen at 21:38, 25 June 2026

2026-06-25T21:38:30Z

James Klassen: /* 7.2.1.2. Growing Media Specified by Others */

2026-06-25T21:32:02Z

‎7.2.1.2. Growing Media Specified by Others

James Klassen: /* 5.1.3.3. Separation of vegetation from roofing details */

2026-06-25T17:18:18Z

‎5.1.3.3. Separation of vegetation from roofing details

James Klassen at 20:45, 24 June 2026

2026-06-24T20:45:00Z

James Klassen: /* 11.3.2.2. Routine Development Care and Maintenance */

2026-06-19T20:41:54Z

‎11.3.2.2. Routine Development Care and Maintenance

James Klassen: /* 10.3.2.8. Separation Zones and Protection of Roof Drains */

2026-06-19T20:37:56Z

‎10.3.2.8. Separation Zones and Protection of Roof Drains

James Klassen: /* 10.3.2.8. Separation Zones and Protection of Roof Drains */

2026-06-19T20:37:17Z

‎10.3.2.8. Separation Zones and Protection of Roof Drains

James Klassen: /* 10.3.2.8. Separation Zones and Protection of Roof Drains */

2026-06-19T20:30:21Z

‎10.3.2.8. Separation Zones and Protection of Roof Drains

@@ Line 419: / Line 419: @@
 | colspan="1"; style="text-align:center;width:450px;" | {{hilite | '''Figure 1.1.2.4.-A'''<br>'''Growing Media Sample Label'''<br>Forming Part of Article 1.1.2.4. || 2027-June-11 }}<br><small>(Click to expand illustration)</small>
 |-
-| [[File:Figure 1.1.2.4.-A Growing Media Sample Label.png | link=https://rpm.rcabc.org/images/c/c9/VRA_Standard%2C_Figure_7.1.5.1.png | 550 px]]
+| [[File:Figure 1.1.2.4.-A Growing Media Sample Label.png | link=https://rpm.rcabc.org/images/5/58/Figure_1.1.2.4.-A_Growing_Media_Sample_Label.png | 550 px]]
 |}

@@ Line 1,526: / Line 1,526: @@
 <li>shall be expressly warrantied by the ''vegetated roof system manufacturer'' (See [[#1.1.3.2. Permitted Vegetated Roof Systems | Article 1.1.3.2.]] for other conditions applicable to the renovation of an existing ''vegetated roof system'').
 </li></ol>
-{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;"
+:{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;"
 |-
 {|
 |-
 |-
-| colspan="1"; style="text-align:center;width:700px;" | '''Table 7.2.1.2.'''<br>'''Growing Media (Soil) Content by Volume*'''<br>Forming Part of Article 7.2.1.2.
+| colspan="1"; style="text-align:center;width:750px;" | '''Table 7.2.1.2.'''<br>'''Growing Media (Soil) Content by Volume*'''<br>Forming Part of Article 7.2.1.2.
 |-
 |}
-{| class="wikitable"
+:{| class="wikitable"
 |-
 ! style="width:150px;vertical-align:center; text-align:center;background-color:#cedf90"     | <big>System Type</big> !! style="width:400px;background-color:#EAF9C0;"     | <big>Constituent Type</big> !! style="Width:150px;vertical-align:center;text-align:center;background-color:#EAF9C0;"     |<big>Percentage</big>

@@ Line 1,015: / Line 1,015: @@
 </li></ol>
-====5.1.3.3. Separation of Vegetation from Roofing Details====
+====5.1.3.3. Separation of vegetation from roofing details====
 (See [[Notes to VRA Standard#A-5.1.3.3. | Note A-5.1.3.3.]])
@@ Line 1,526: / Line 1,526: @@
 <li>shall be expressly warrantied by the ''vegetated roof system manufacturer'' (See [[#1.1.3.2. Permitted Vegetated Roof Systems | Article 1.1.3.2.]] for other conditions applicable to the renovation of an existing ''vegetated roof system'').
 </li></ol>
-</li></ol>
+{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;"
 |-
 {|
 |-
 |-
-| colspan="1"; style="text-align:center;width:600px;" | '''Table 7.2.1.2.'''<br>'''Growing Media (Soil) Content by Volume*'''<br>Forming Part of Article 7.2.1.2.
+| colspan="1"; style="text-align:center;width:700px;" | '''Table 7.2.1.2.'''<br>'''Growing Media (Soil) Content by Volume*'''<br>Forming Part of Article 7.2.1.2.
 |-
 |}
@@ Line 1,558: / Line 1,557: @@
 |}
 :<small>*Adapted from the “Green Roof Design and Installation Resource Manual”, Vol. II, Table 5.6.1 (GRHC); for cross-reference<br>purposes, also see the Canadian Landscape Standard, Section 5.</small>
 ====7.2.1.3. Growing Media Blending and Validation Testing====

@@ Line 1,527: / Line 1,527: @@
 </li></ol>
 </li></ol>
-<br>
+:::{| class="wikitable" style="margin-left: auto; margin-right: auto; border: none;"
-<div class="col-md-12">
+|-
 {|
 |-
 |-
-| colspan="1"; style="text-align:center;width:650px;" | '''Table 7.2.1.2.'''<br>'''Growing Media  (Soil) Content by Volume<big>*</big>'''<br>Forming Part of Article 7.2.1.2.<br><small>(Click to expand)</small>
+| colspan="1"; style="text-align:center;width:600px;" | '''Table 7.2.1.2.'''<br>'''Growing Media (Soil) Content by Volume*'''<br>Forming Part of Article 7.2.1.2.
 |-
-| [[File:VRA Standard Table 7.2.1.2..png |link=https://rpm.rcabc.org/images/4/40/VRA_Standard_Table_7.2.1.2..png| 650 px]]
+| rowspan="4"  style="vertical-align:center; text-align:center;background-color: #b7c656"  | INTENSIVE and<br>SEMI-INTENSIVE || style="height:36px;vertical-align:center; text-align:center;"	|   lightweight aggregate  || style="height:36px;vertical-align:center; text-align:center;"	| 35% - 60%
 |}
 :<small>*Adapted from the “Green Roof Design and Installation Resource Manual”, Vol. II, Table 5.6.1 (GRHC); for cross-reference<br>purposes, also see the Canadian Landscape Standard, Section 5.</small>
 ====7.2.1.3. Growing Media Blending and Validation Testing====

@@ Line 1,015: / Line 1,015: @@
 </li></ol>
-====5.1.3.3. Separation of vegetation from roofing details====
+====5.1.3.3. Separation of Vegetation from Roofing Details====
 (See [[Notes to VRA Standard#A-5.1.3.3. | Note A-5.1.3.3.]])

@@ Line 83: / Line 83: @@
 <div style="text-align:center">
 '''First Edition''': June 13, 2024
-<br>'''Previous Edition''': N/A
+<br>'''Previous Edition''': October 25, 2024
-<br>'''Current Edition''': Adopted October 25, 2024
+<br>'''Current Edition''': June 11, 2026
 <br><br>
-All changes to this Standard are effective<br><big>'''November 1, 2024'''</big>
+All changes to this Standard are effective<br><big>'''July 1, 2026'''</big>
 </div>
 <div style="text-align:center">

@@ Line 2,137: / Line 2,137: @@
 <li>In addition to the foregoing, the ''qualified green roof installer'' responsible for maintenance shall maintain the ''green roof'' in accordance with best practices, including (without limitation) the following tasks:
 <ol>
 <li>repeat seeding or planting, where necessary (replant bare areas immediately),
 <li>replace potted ''vegetation'' that has died,
 <li>roll any frost-lifted portion of the system,
 <li>cut back, trim, prune, or thin out ''vegetation'', as needed,
-<li>mulch vegetation (See [[Notes to VRA Standard#A-11.3.2.2.(8)(5)| A-11.3.2.2.(8)(5)]]),
+<li>{{hilite | inspect anchors and bracing for trees or other woody ''plants'' (check for signs of constriction, pressure, and chafing damage), and adjust as needed|| 2027-June-11 }},
 <li>reconnect or reposition any disconnected trays or mats,
 <li>adjust anchors or bracing for large ''plants'',
@@ Line 2,152: / Line 2,154: @@
 <li>water (irrigate, where the roof has an irrigation system) the ''vegetated roof system''.
 </li></ol>
 <li>''Growing media'' shall be
 <ol>

@@ Line 1,941: / Line 1,941: @@
 |-
 |-
-| colspan="1"; style="text-align:center;width:550px;" | {{hilite | '''Figure 10.3.2.8.-A'''<br>'''Site-formed Edge Metal Corner'''|| 2027-June-11 }}<br>Forming Part of Article 10.3.2.8.<br><small>(Click to expand)</small>
+| colspan="1"; style="text-align:center;width:550px;" | {{hilite | '''Figure 10.3.2.8.-A'''<br>'''Site-formed Edge Metal Corner'''|| 2027-June-11 }}<br>{{hilite | Forming Part of Article 10.3.2.8.|| 2027-June-11 }}<br><small>(Click to expand)</small>
 |-
 | [[File:Figure 10.3.2.8.-A.png | link=https://rpm.rcabc.org/images/1/10/Figure_10.3.2.8.-A.png| 550 px]]

@@ Line 1,937: / Line 1,937: @@
 <li>''Overflow drains'' must be unobstructed by any edging or substructure layers and must be visible for ease of inspection and maintenance.
 </li></ol>
 ====10.3.2.9. Installation and Commissioning of Irrigation Systems====