Template:Part 2 (Waterproofing Roofs - Single Ply) - Revision history

James Klassen: /* Materials */

2021-10-15T16:12:36Z

‎Materials

James Klassen: /* New Construction */

2021-09-20T16:36:11Z

‎New Construction

James Klassen: /* New Construction */

2021-08-06T14:55:08Z

‎New Construction

James Klassen at 19:04, 9 July 2021

2021-07-09T19:04:33Z

James Klassen: /* General */

2021-07-09T19:01:09Z

‎General

James Klassen: /* General */

2021-06-24T18:00:28Z

‎General

James Klassen at 21:49, 13 April 2021

2021-04-13T21:49:14Z

James Klassen: /* General */

2021-04-13T18:12:23Z

‎General

James Klassen at 20:00, 5 February 2021

2021-02-05T20:00:23Z

Show changes

James Klassen: /* {{hilite | Definitions|| 2021-June-30 }} */

2020-12-07T19:06:45Z

‎{{hilite | Definitions|| 2021-June-30 }}

@@ Line 223: / Line 223: @@
 <ol>
 <li>{{hilite | 12.7 mm (1/2”)|| 2022-June-17 }} thick treated plywood.
-<li>fibre-mat reinforced cement boards with a minimum thickness of 9.5 mm (⅜").
+<li>fibre-mat reinforced cement boards with a minimum thickness of 9.5 mm (⅜") (conforming to ''ASTM C1325-04'').
 </li></ol>
 <li>For framed walls, the following {{hilite | sheathing|| 2021-June-30 }} material are acceptable:
 <ol>

@@ Line 243: / Line 243: @@
 ===New Construction===
-#Electrical cables, raceways or boxes shall not be installed within a ''roof assembly''{{hilite | ('''Figure 2.7.1-1''')|| 2021-February-7 }}.
+#Electrical cables, raceways or boxes shall not be installed within a ''roof assembly'' {{hilite | ('''Figure 2.7.1-1''')|| 2021-February-7 }}.
 #Electrical cables, raceways or boxes shall not be installed on the underside of a ''roof assembly'', unless
 ##the ''supporting deck'' structure equals or exceeds 76 mm (3”) in thickness{{hilite | ('''Figure 2.7.1-2''')|| 2021-February-7 }}, or

@@ Line 279: / Line 279: @@
 |}
 </div>
 </div>

@@ Line 8: / Line 8: @@
 :;{{hilite | Wall overlay|| 2021-June-30 }}: {{hilite | means a panel material secured to the surface of a ''Wall'', to render it suitable for the installation of roofing or wall cladding materials|| 2021-June-30 }}.
 <div id="DECK_CONDITION"></div>
 ==={{hilite | Design || 2021-June-30 }}===
 <ol>
@@ Line 46: / Line 47: @@
 | [[File:2.1 Slope illustration.jpg|link=http://rpm.rcabc.org/images/d/d3/2.1_Slope_illustration.jpg | 350 px]]
 |}
 <li><span class="principles">While good drainage is desirable but not always perfectly achievable, and roof ''waterproofing systems'' generally are not affected by standing water, each ''project'' design should incorporate sufficient slope to move water off the roof surface.  Sufficient slope is attained when (subject to conditions that permit evaporation) no standing water remains on the roof surface, after a reasonable interval following a rainfall.  Local climate conditions may necessitate design slopes higher than the minimums published in this Standard.</span>  See '''2.2.2 New Construction''' and '''2.2.3 Replacement Roofing''' for minimum requirements.
 <li><span class="reference">Roof slope may be achieved either by designing the roof structure with sloped ''decks'', or by introducing slope with tapered board insulation</span>.
@@ Line 57: / Line 57: @@
 <li><span class="recommended">positive sloping valleys to drains (highly recommended)</span>.
 </li></ol>
-<li><span class="principles">''Curbs'' that span 1800 mm (6’) or more across the ''drainage plane'' should be designed with a cricket to divert water around the ''curb''</span>.
+<li><span class="principles">''Curbs'' that span 1800 mm (6’) or more across the drainage plane should be designed with a cricket to divert water around the ''curb''</span>.
 <li>Drain sumps, designed to isolate collected water for the drain, need not be sloped.  <span class="recommended">The use of drain sumps is {{hilite | highly || 2020-October-22 }} recommended</span>.  See also  '''11.1.2.2''' ('''9''') '''All Projects'''.
 </li></ol>
@@ Line 111: / Line 111: @@
 </li></ol>
 <div id="WOOD_DECK"></div>
 ===Wood===
 <span class="reference">Wood is a common roof ''deck'' construction material that has been used for many years because of its economy, ease of fabrication, lighter construction, and ready availability. Acceptable wood roof ''decks'' may include (without limitation)</span>
@@ Line 165: / Line 166: @@
 </li></ol>
 <div id="EXPANSION_JOINT"></div>
 ==Expansion Joints==
 See [http://rpm.rcabc.org/index.php?title=Construction_Details '''Construction Details'''] and '''10.3.1.7 Expansion and Control Joints''' for membrane application.
@@ Line 183: / Line 185: @@
 </li></ol>
 <div id="CONTROL_JOINT"></div>
 ==Control Joints==
 See the relevant [http://rpm.rcabc.org/index.php?title=Division_G:_Construction_Details '''Construction Details'''] and '''10.3.1.7 Expansion and Control Joints''' for membrane application.
@@ Line 194: / Line 197: @@
 </li></ol>
 <div id="WALLS"></div>
 ==Walls==
 ===General===
 <ol>
-<li>{{hilite | ''Wall'' surfaces must be clean, dry and smooth, suitable for the application of ''roof system'' materials.  When the ''wall'' surface is unsuitable to receive ''waterproofing'' materials, it must be resurfaced with an RoofStar-accepted wall overlay.  See '''Part 5 DECK and WALL OVERLAYS''' for material and application standards|| 2021-June-18 }}.
+<li>{{hilite | ''Wall'' surfaces must be clean, dry and smooth, suitable for the application of ''roof system'' materials.  When the ''wall''
 <li>{{hilite | ''Sheathing'', defined as a rigid panel material secured directly onto framing, is considered a wall surface for the purpose of this Standard|| 2021-June-18 }}.
 <li>{{hilite | ''Wall'' surfaces receiving ''waterproofing'' materials must extend beyond the maximum installed height of the ''waterproofing'', but in any event must be installed at least 200 mm (8”) above the ''finished waterproofing system''. For suitable ''wall'' surface materials, see '''2.6.2''' below|| 2021-June-18 }}.
@@ Line 212: / Line 220: @@
 ===Materials===
 <ol>
-<li>Concrete surfaces must comply with the requirements set out in '''2.1.3'''.  When concrete surfaces do not comply, concrete walls may be sheathed with any one of the following:
+<li>Concrete surfaces must comply with the requirements set out in '''2.1.2''' ('''3''').  When concrete surfaces do not comply, concrete walls may be sheathed with any one of the following:
 <ol>
-<li>15.9 mm (5/8”) thick treated plywood.
+<li>{{hilite | 12.7 mm (1/2”)|| 2022-June-17 }} thick treated plywood.
 <li>fibre-mat reinforced cement boards with a minimum thickness of 9.5 mm (⅜").
 </li></ol>
@@ Line 226: / Line 234: @@
 </li></ol>
 <div id="ELECTRICAL"></div>
 ==Electrical Cables and Boxes==
 <span class="reference">Electrical cables (including conduit) or boxes installed inside, on top of, or beneath a ''roof assembly'' may expose roofing workers to electrical shock, {{hilite | and may inhibit the installation of some ''roof systems'' designed to resist wind uplift.  Furthermore, electrical cables on, in or under the ''roof assembly'' || 2021-February-7 }} expose the building and the public to both shock and fire.  Hidden electrical wiring and boxed junctions can be extremely difficult to document before work begins, and while some technologies are purportedly accurate in identifying energized circuits before they are damaged, false readings make these technologies less than reliable.  During replacement roofing, avoiding damage to electrical circuits from cutters and fasteners is sometimes next to impossible.  It is therefore desirable to design buildings with realistic separations between electrical wiring and boxes, and ''roof assemblies''</span>.

@@ Line 27: / Line 27: @@
 </li></ol>
 <div id="SLOPE"></div>
 ==Roof Slope==
 ===General===

@@ Line 206: / Line 206: @@
 <li>The ''Design Authority'' must ensure a continuous connection between the roof system from field to perimeter, in order to control or inhibit the movement of water, air and vapour.
 <li>{{hilite | Wood or steel-stud ''walls'' must be sheathed with a material suitable for securing metal flashings|| 2021-June-30 }}.
-<li>{{hilite | For concrete ''walls'', refer to '''2.2.3 Concrete''' above|| 2021-June-30 }}.
+<li>{{hilite | For concrete ''walls'', refer to '''2.3.2 Concrete''' above|| 2021-June-30 }}.
 </li></ol>

@@ Line 7: / Line 7: @@
 :;{{hilite | Wall|| 2021-June-30 }}: {{hilite | means a structural or non-structural element in a building that vertically separates space.  ''Walls'' may separate the outside environment from the interior conditioned space of a building, or they may separate one or more interior spaces from each other (adapted from ''ASTM E631-15 Standard Terminology of Building Constructions'')|| 2021-June-30 }}.
 :;{{hilite | Wall overlay|| 2021-June-30 }}: {{hilite | means a panel material secured to the surface of a ''Wall'', to render it suitable for the installation of roofing or wall cladding materials|| 2021-June-30 }}.
+<div id="DECK_CONDITION"></div>
 ==={{hilite | Design || 2021-June-30 }}===
 <ol>
@@ Line 26: / Line 26: @@
 <li><span class="principles">The ''supporting deck'' structure should be dimensionally stable and capable of accommodating ''roof system'' component movement</span>.
 </li></ol>
+<div id="SLOPE"></div>
 ==Roof Slope==
 ===General===
@@ Line 77: / Line 77: @@
 :See also '''Part 7 INSULATION'''.
+<div id="DECK"></div>
 ==Supporting Deck Types==
-<div id="STEELDECK"></div>
+<div id="STEEL_DECK"></div>
 ===Steel===
 <span class="reference">Steel ''decks'' are constructed of light gauge (usually 22, 20, or 18 gauge) cold-rolled steel sections (panels) that are usually galvanized. In cross-section the panels are ribbed, with the ribs usually spaced at 150 mm (6") O.C. The ribs provide the strength and rigidity of the panels. Steel ''decks'' are generally supported by open-web steel joist framing and are welded or mechanically fastened to the framework</span>. <br>
@@ Line 89: / Line 89: @@
 <li>Uninsulated systems require a ''deck overlay'' for the membrane. A RoofStar-accepted moisture resistant fibreglass-faced silicon treated gypsum core board may serve both as a thermal barrier and as a level surface.  For more about this, see '''5.3.2 Steel Decks'''.
 </li></ol>
-<div id="CONCRETEDECK"></div>
+<div id="CONCRETE_DECK"></div>
 ===Concrete===
@@ Line 109: / Line 109: @@
 <li><span class="principles">Pre-cast ''decks'' joints should be “taped” or stripped-in with a membrane ply</span>.
 </li></ol>
-<div id="WOODDECK"></div>
+<div id="WOOD_DECK"></div>
 ===Wood===
 <span class="reference">Wood is a common roof ''deck'' construction material that has been used for many years because of its economy, ease of fabrication, lighter construction, and ready availability. Acceptable wood roof ''decks'' may include (without limitation)</span>
@@ Line 163: / Line 163: @@
 <li><span class="principles">Wood board ''decks'' should be of sound seasoned lumber, properly secured to the supporting structure</span>.
 </li></ol>
+<div id="EXPANSION_JOINT"></div>
 ==Expansion Joints==
 See [http://rpm.rcabc.org/index.php?title=Construction_Details '''Construction Details'''] and '''10.3.1.7 Expansion and Control Joints''' for membrane application.
@@ Line 181: / Line 181: @@
 <li>Expansion joints constructed as a raised divider must have a sloped top surface and must extend in height above the ''finished waterproofing system'' no less than 200 mm (8").  The minimum height of the expansion joint may be reduced to 100 mm (4") if the primary roof membrane flashing is fully supported and sealed over the top.
 </li></ol>
+<div id="CONTROL_JOINT"></div>
 ==Control Joints==
 See the relevant [http://rpm.rcabc.org/index.php?title=Division_G:_Construction_Details '''Construction Details'''] and '''10.3.1.7 Expansion and Control Joints''' for membrane application.
@@ Line 192: / Line 192: @@
 <li>When roof dividers are already present (during replacement roofing), the dividers must extend at least 100 mm (4”) in height above the ''finished waterproofing system''.
 </li></ol>
+<div id="WALLS"></div>
 ==Walls==
 ===General===
@@ Line 224: / Line 224: @@
 </li></ol>
 </li></ol>
+<div id="ELECTRICAL"></div>
 ==Electrical Cables and Boxes==
 <span class="reference">Electrical cables (including conduit) or boxes installed inside, on top of, or beneath a ''roof assembly'' may expose roofing workers to electrical shock, {{hilite | and may inhibit the installation of some ''roof systems'' designed to resist wind uplift.  Furthermore, electrical cables on, in or under the ''roof assembly'' || 2021-February-7 }} expose the building and the public to both shock and fire.  Hidden electrical wiring and boxed junctions can be extremely difficult to document before work begins, and while some technologies are purportedly accurate in identifying energized circuits before they are damaged, false readings make these technologies less than reliable.  During replacement roofing, avoiding damage to electrical circuits from cutters and fasteners is sometimes next to impossible.  It is therefore desirable to design buildings with realistic separations between electrical wiring and boxes, and ''roof assemblies''</span>.

@@ Line 3: / Line 3: @@
 ==={{hilite | Definitions|| 2021-June-30 }}===
 {{hilite |Refer to the|| 2021-June-30 }} [http://rpm.rcabc.org/index.php?title=Glossary '''Glossary'''] {{hilite |for further definitions of key terms used in this ''Manual''|| 2021-June-18 }}.
-:;{{hilite | Supporting deck ("deck")|| 2021-June-30 }}: {{hilite | means the "structural surface to which the ''Waterproofing'' or ''Water-shedding System'' is applied" (sdapted from ''ASTM D1079-18 Standard Terminology Relating to Roofing and Waterproofing'')|| 2021-June-30 }}.
+:;{{hilite | Supporting deck ("deck")|| 2021-June-30 }}: {{hilite | means the "structural surface to which the ''Waterproofing'' or ''Water-shedding System'' is applied" (adapted from ''ASTM D1079-18 Standard Terminology Relating to Roofing and Waterproofing'')|| 2021-June-30 }}.
 :;{{hilite | Deck overlay|| 2021-June-30 }}: {{hilite | means a panel material secured to the supporting deck in order to render the deck surface continuous or suitable for the installation of roofing materials|| 2021-June-30 }}.
 :;{{hilite | Wall|| 2021-June-30 }}: {{hilite | means a structural or non-structural element in a building that vertically separates space.  ''Walls'' may separate the outside environment from the interior conditioned space of a building, or they may separate one or more interior spaces from each other (adapted from ''ASTM E631-15 Standard Terminology of Building Constructions'')|| 2021-June-30 }}.