Template:ROOFTOP GARDENS, PLANTERS & WALKWAYS (SBS) - Revision history

James Klassen at 22:57, 9 November 2018

2018-11-09T22:57:40Z

James Klassen: /* {{hilite | Design and Construction Requirements || 2018-January-25 }} */

2018-07-19T16:07:19Z

‎{{hilite | Design and Construction Requirements || 2018-January-25 }}

James Klassen: /* {{hilite | Design and Construction Requirements || 2018-January-25 }} */

2017-11-21T23:23:15Z

‎{{hilite | Design and Construction Requirements || 2018-January-25 }}

James Klassen: /* Intensive Vegetated Roof Assemblies */

2017-10-18T22:25:08Z

‎Intensive Vegetated Roof Assemblies

James Klassen: /* General */

2017-09-25T14:54:59Z

‎General

James Klassen: /* {{hilite | Design and Construction Requirements || 2018-January-25 }} */

2017-09-15T22:04:39Z

‎{{hilite | Design and Construction Requirements || 2018-January-25 }}

James Klassen: /* Membrane Protection */

2017-09-15T22:03:15Z

‎Membrane Protection

James Klassen: /* Membrane Protection */

2017-09-15T21:31:10Z

‎Membrane Protection

James Klassen: /* {{hilite | Design and Construction Requirements || 2018-January-25 }} */

2017-09-15T21:28:41Z

‎{{hilite | Design and Construction Requirements || 2018-January-25 }}

James Klassen: /* Walkways and Warning Zones */

2017-08-24T18:58:07Z

‎Walkways and Warning Zones

@@ Line 87: / Line 87: @@
 === Overburdens ===
 ====Extensive Vegetated Roof Assemblies====
 <p class="principles">Where {{hilite | '''Extensive Vegetated Roof Assemblies''' || 2017-April-22 }} are installed as part of the roofing specification and / or contract, the costs for removal and replacement of soil to access the membrane, to investigate or repair leaks in the membrane, are included in the RoofStar Guarantee coverage. However, the removal and replacement of plants, irrigation lines and or equipment, electrical lines, landscape and decorative features such as concrete pads, statues, planters, large rocks, etc., to investigate or repair leaks in the membrane, is not included, and is the responsibility of others. Subsequently, such access shall be provided and/or paid for by others.</p>
 ====Intensive Vegetated Roof Assemblies====
@@ Line 96: / Line 94: @@
 <p class="principles">When an Intensive Vegetated Roof Assemblies with growing medium greater than {{hilite | 150 mm (6”) || 2018-January-25 }} forms part of the roofing specification and/or contract, the roof must be designed and constructed to the '''''RoofStar Guarantee Standards''''' for a [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSPMRA|'''Protected Membrane Roof assembly''']] (see 10.1.2 above).  Consequently, the removal and replacement of such overburden is the responsibility of the others, and such costs do not form part of the coverage under a '''RoofStar Guarantee'''.</p>
 ====Planters====
@@ Line 143: / Line 139: @@
 <br>
 <span class="recommended">{{hilite | Criteria for evaluating the sensitivity of building interiors is left to the Design Authority. || 2018-January-25 }}</span>

@@ Line 26: / Line 26: @@
 {{hilite | A conventional roof membrane assembly is not appropriate for all types of roofs supporting overburden.  For example, overburden weight, and hydrostatic pressure exerted because of certain types of overburden, demand different materials and design approaches to ensure membranes do not fail.  Therefore, where || 2018-January-25 }}
-* {{hilite | the designed overburden of the roof assembly (excluding plants) exceeds 150 mm (6”) in depth, or || 2018-January-25 }}
+* {{hilite | the designed overburden of the roof assembly (excluding plants) equals or exceeds 150 mm (6”) in depth, or || 2018-January-25 }}
 * {{hilite | the point-loading of overburden equals or exceeds 138 kPa (20 psi); or || 2018-January-25 }}
 * {{hilite | moveable planters or equipment/installations on a roof each weigh 90 Kg (200 lbs) or more || 2018-January-25 }}

@@ Line 36: / Line 36: @@
 {|	class="wikitable" colspan="8"; style="margin-left: 20pt; margin-right: auto; border: 2px;"
 |+	Some types of overburdens are not permitted on conventionally insulated roof systems.  Use the chart below to determine whether or not your overburden design is appropriate for a conventional roof.  If it isn’t, the roof must be designed as a '''Protected Membrane Assembly Roof''' and will require a leak detection system.
-! rowspan="2" style="width:150pt; text-align:left;"| <i class="fa fa-check"></i> - Permissible<br><i class="fa fa-times"></i> - Not permitted
+! rowspan="2" style="width:150pt; text-align:left;"| <big>Roof Assembly Type</big>
-! colspan="6" style=width:600pt; text-align:center" | <big>Conventionally Insulated or PMRA's: options and requirements</big>
+! colspan="8" style=width:600pt; text-align:center" | <big>Overburden characteristics</big>
 |-
 | colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 150 mm<br>(6") depth''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 150 mm<br>(6") depth'''
@@ Line 47: / Line 47: @@
 | style="text-align:center;background: #c8ccd1;" | Leak Detection System || colspan="6" style="text-align:center;background-color: #ffffcc;" | '''Not available for Conventional Roof Systems under the RoofStar Guarantee Program'''
 |-
-| style="border-top: 2px solid black;text-align:center;background: #a2a9b1;" | '''PROTECTED MEMBRANE<br>ROOF SYSTEM''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Optional''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Optional''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Optional''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required'''
+| style="border-top: 2px solid black;text-align:center;background: #a2a9b1;" | '''PROTECTED MEMBRANE<br>ROOF SYSTEM''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | '''Required'''
 |-
 |-
-| style="text-align:center;background: #c8ccd1;" | Integrity Scan || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required'''
+| style="text-align:center;background: #c8ccd1;" | Integrity Scan || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required'''
 |-
 |-
-| style="text-align:center;background: #c8ccd1;" | Leak Detection System || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | '''Optional''' || colspan="1" style="text-align:center;" | '''Required'''
+| style="text-align:center;background: #c8ccd1;" | Leak Detection System || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required''' || colspan="1" style="text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="text-align:center;" | '''Required'''
 |-
 |}
 {{hilite | For further requirements concerning leak detection for Rooftop Gardens, Planters & Occupied Spaces, see '''10.7 Membrane Moisture Surveys and Electric Leak Detection'''. || 2018-January-25 }}

@@ Line 91: / Line 91: @@
 <p class="principles">{{hilite | '''Intensive Vegetated Roof Assemblies''' || 2017-April-22 }} installed as part of the roofing specification and/or contract are permitted on conventionally insulated membrane roof assemblies provided the depth of the growing medium does not exceed {{hilite | 150 mm (6″) || 2018-January-25 }}.</p>
-<p class="principles">When an Intensive Vegetated Roof Assemblies with growing medium greater than {{hilite | 150 mm (6”) || 2018-January-25 }} forms part of the roofing specification and/or contract, the roof must be designed and constructed to the '''''RoofStar Guarantee Standards''''' for a [[RoofStar Guarantee Standards for SBS Roof Systems#SBSPMRA|'''Protected Membrane Roof assembly''']] (see 10.1.2 above).  Consequently, the removal and replacement of such overburden is the responsibility of the others, and such costs do not form part of the coverage under a '''RoofStar Guarantee'''.</p>
+<p class="principles">When an Intensive Vegetated Roof Assemblies with growing medium greater than {{hilite | 150 mm (6”) || 2018-January-25 }} forms part of the roofing specification and/or contract, the roof must be designed and constructed to the '''''RoofStar Guarantee Standards''''' for a [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSPMRA|'''Protected Membrane Roof assembly''']] (see 10.1.2 above).  Consequently, the removal and replacement of such overburden is the responsibility of the others, and such costs do not form part of the coverage under a '''RoofStar Guarantee'''.</p>
 <div id=SBSPRECURB></div>

@@ Line 1: / Line 1: @@
 __NOTOC__
 ===General ===
-SBS Modified Bituminous membranes used on Landscaped and Vegetated conventionally insulated roofing systems with an overburden 150 mm (6”) or less in depth shall consist of two plies and the top ply (cap) must be a minimum thickness of 3.7 mm on the selvedge edge, with a minimum 180g / meters squared polyester or equal strength combination reinforcement. Thermoset and Thermo Plastic (EPDM, TPO, PVC) single ply membranes used for Landscaped and Vegetated roofing systems shall be fully adhered and a minimum thickness of 1.5mm (0.060").
+{{hilite | SBS Modified Bituminous membranes used on Landscaped and Vegetated conventionally insulated roofing systems with an overburden 150 mm (6”) or less in depth shall consist of two plies and the top ply (cap) must be a minimum thickness of 3.7 mm on the selvedge edge, with a minimum 180g / meters squared polyester or equal strength combination reinforcement. Thermoset and Thermo Plastic (EPDM, TPO, PVC) single ply membranes used for Landscaped and Vegetated roofing systems shall be fully adhered and a minimum thickness of 1.5mm (0.060"). || 2018-January-25 }}
 {{hilite | For roof membrane systems insulated above the membrane (Protected Membrane Roof assemblies), refer to the membrane standards under [http://rpm.rcabc.org/index.php?title=Protected_and_Modified_Protected_Roof_Systems '''Protected and Modified Protected Membranes'''] and additional requirements set out below in '''10.1.2'''. || 2018-January-25 }}

@@ Line 39: / Line 39: @@
 ! colspan="6" style=width:600pt; text-align:center" | <big>Conventionally Insulated or PMRA's: options and requirements</big>
 |-
-| colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< / = 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''> 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< / = 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''> 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< / = 150 mm<br>(6") depth''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''> 150 mm<br>(6") depth'''
+| colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 90 kg ea.<br>object''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 138 kPa<br>(20 psi)<br>point load''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''< 150 mm<br>(6") depth''' || colspan="1" style="vertical-align: top;text-align:center;background: #c8ccd1;" | '''= / > 150 mm<br>(6") depth'''
 |-
 | style="border-top: 2px solid black;text-align:center;background: #a2a9b1;" | '''CONVENTIONAL<br>ROOF SYSTEM''' || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-times"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-times"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-check"></i> || colspan="1" style="border-top: 2px solid black;text-align:center;" | <i class="fa fa-times"></i>

@@ Line 66: / Line 66: @@
 <p class="principles">The Membrane Manufacturer and '''''RoofStar Guarantee Program''''' must confirm acceptance of other alternative protection systems or components in writing. Damage to membranes and flashings that results from the use of plants with aggressive root structures, (Bamboo, Willow etc.) for landscaped and green (vegetated) roof systems, is not the responsibility of the '''''RoofStar Guarantee Program''''' and is specifically not covered under the '''''RoofStar Guarantee'''''. For additional information refer to the latest addition of the ''British Columbia Landscape Standard'', Green Roof Section.</p>
-<b>Conventionally insulated roof assemblies</b> are required to have a minimum 12.5mm (½") adhered <b>RoofStar-accepted gypsum</b> overlay board, and insulation boards with a minimum compressive strength of 20 psi, under the roof membrane for <b>extensive</b> vegetated systems (with depth less than or equal to 150 mm, or 6").  <b>Intensive</b> vegetated systems (with depth greater than 150 mm, or 6") are not permitted over conventionally insulated roof systems.
+<b>Conventionally insulated roof assemblies</b> are required to have a minimum 12.5mm (½") adhered <b>RoofStar-accepted gypsum</b> overlay board, and insulation boards with a minimum compressive strength of 20 psi, under the roof membrane for <b>extensive</b> vegetated systems (with depth less than 150 mm, or 6").  <b>Intensive</b> vegetated systems (with depth equal to or greater than 150 mm, or 6") are not permitted over conventionally insulated roof systems.
 ====Root Barriers & Separation Zones====

@@ Line 106: / Line 106: @@
 <p class="principles">When primary roof membranes of contrasting colour are used for warning zones, membrane end lap off sets and ply side lap directions must be maintained. Staggered membrane end lap offsets may be positioned below primary roof membranes that are used for warning zones.</p>
-Where walkways are employed, they must be designed to facilitate drainage of water.  To promote drainage, use accepted concrete-topped XPS insulation panels, or pavers located on purpose-made XPS insulation panels.  When pavers are used as the walkway material, they must be spaced no closer than 3mm (1/8″) and must be supported by non-abrasive pads or proprietary pedestals providing a minimum of 12.5 mm (1/2″) of vertical separation layer for airflow and levelling.  The choice of pedestal or drainage layer type is the responsibility of the design authority. Pedestals provide airflow for drying surfaces and assist in leveling. They should not impede the flow of water or air, and should uniformly distribute the dead load of pavers and predicted live loads.
+Where walkways are employed, they must be designed to facilitate drainage of water.  To promote drainage, use accepted concrete-topped XPS insulation panels, or pavers located on purpose-made pedestals.  When pavers are used as the walkway material, they must be spaced no closer than 3mm (1/8″) and must be supported by non-abrasive pads or proprietary pedestals providing a minimum of 12.5 mm (1/2″) of vertical separation layer for airflow and levelling.  The choice of pedestal or drainage layer type is the responsibility of the design authority. Pedestals provide airflow for drying surfaces and assist in leveling. They should not impede the flow of water or air, and should uniformly distribute the dead load of pavers and predicted live loads.
 <p class="reference">A design authority or membrane manufacturer may specify a proprietary walkway protection system or warning zone membrane over the primary roof membrane. Walkway and warning zone materials are not part of the roofing membrane assembly but are typically accessory products that are placed over completed roof membranes. Subsequently the type and performance of any walkway or warning zone material is specifically excluded from coverage under the '''''RoofStar Guarantee''''', as is any detrimental effect the materials may have on the roof system.</p>