Difference between revisions of "Draft CD 1"

Latest revision as of 15:01, 16 February 2024

Division D - Construction Details

EPDM | Membrane Termination A (Wall) ( Article 10.3.2.3.)

Notice to Reader
Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article 2.2.1.2.). The reader may link to the related Article in the detail title, or link to the Standard as it relates to a specific element in the detail. All hyperlinks are displayed blue text.

EPDM Details

Drawing NTS

1 WORK INCLUDED

(1) Air/Vapour Control Layers: As specified by the Design Authority and installed to provide continuity for optimal control.
(2) Insulation: Installed in keeping with Section 7.3. Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
(3) Insulation Overlay Panel: Required for fully adhered membrane systems or when overburden is specified. Panels must be offset and staggered from underlying insulation panels.
(4) Field Membrane: See Table 9.2. for permissible application methods and corresponding membrane properties. Membrane must be installed according to the requirements in Section 9.3.
(5) Edge Securement: Proprietary to the membrane manufacturer. Edge securement is required, irrespective of how the membrane is applied (i.e., adhered, self-adhered, mechanically fastened).
(6) Mechanical Fastening: Edge securement must be anchored to the roof structure to prevent membrane movement.
(7) Primer or Adhesive: Proprietary to the membrane manufacturer. Primer may be required for self-adhered membranes; adhesive is required for all other applications. All membranes applied to the vertical substrate must be fully adhered.
(8) Membrane Flashing: May be run continuously up the vertical substrate from the field or installed as separate flashing (see membrane manufacturer requirements). Membrane shall be carried up the vertical substrate at least 203.2 mm (8”) above the finished roof system surface, plus at least 76.2 mm (3”) for wall control layer overlap. In regions where heavy snow accumulation is possible, or to accommodate future roof membrane replacement, membrane should be carried at least 304.8 mm (12”) up the vertical substrate.
(9) Rigid Support for Through-wall Flashing (optional): Where the wall is insulated on the exterior side of the structure, continuity of air and vapour controls must be protected from future damage during roof replacement. This can be done by securing a suitable membrane receiver panel against the insulation. The panel must be permanently affixed to the structure through the insulation. During replacement of the roof membrane, membrane flashing may be removed from the receiver panel without disturbing the insulation and control layers. In this way, material waste is also reduced.

Where the membrane may not easily separate from its receiver during roof replacement, a second panel (not illustrated) can be screw-fastened to the first. During replacement, both the membrane and the secondary panel may be removed together, simplifying membrane replacement.
(10) Membrane Flashing Substrate: Continuity of the water-resistive barrier means it must pass through the insulation assembly installed on the exterior side of the wall structure. To do that, a membrane flashing passes through the insulation where the roof system terminates. Blocking or another suitable support (i.e., hat track) is necessary to support the membrane and its linear metal flashing carrier. Wood blocking illustrated.
(10) Through-wall Flashing: A self-adhered membrane is used to transition from the wall to the roofing assembly, providing a continuous drainage path for water. Secure the linear metal flashing to the support underneath (see Item 9 or 10 above).

Note that the water resistive barrier membrane from the wall (installed by others – see Related Work below) overlaps the through-wall flashing (installed by the Contractor) and is supported by a metal flashing with drip edge, to direct water from the wall to the roof surface.

2 RELATED WORK BY OTHERS

(A) Acceptable Deck: Illustrated deck is representative. See Sub-section 2.1.5. for acceptable deck types and conditions.
(B) Wall Structure: Illustrated wall is representative. Wall control layers (i.e., water resistive barrier) must overlap roofing system to achieve continuity. See Sub-section 2.1.7. for wall conditions.
(C) Wall System Finish: Illustrated system is representative and shows water-resistive barrier overlapping roof membrane (See above, Item 8).

NOTE: See the EPDM Roof Systems Standard for additional requirements.

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-<big><big><big><big><big>SBS | Parapet (Typical) ([[SBS_Roof_Systems_Standard#10.3.2.3._General Application Requirements for Perimeters and Walls | Article 10.3.2.3.]]; [[SBS_Roof_Systems_Standard#10.3.4.1._Parapets | Article 10.3.4.1.]])</big></big></big></big></big>
+<big><big><big><big><big>EPDM | Membrane Termination A (Wall) ([[EPDM_Roof_Systems_Standard#10.3.2.3._General_Application_Requirements_for_Perimeters_and_Walls | Article 10.3.2.3.]])</big></big></big></big></big>
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-<div class="panel-heading"><big>'''SBS Details'''</big></div>
+<div class="panel-heading"><big>'''EPDM Details'''</big></div>
 <div class="panel-body">
-<div class="col-md-7">
+<div class="col-md-6">
 <div style="text-align:center; vertical-align:center">
-<big>Use arrows to scroll through related images (A, B, and C).  Click any image to expand.</big>
+<br>
+[[File:10.3.2.3.-EPDM-A.png |class=img-responsive | link=https://rpm.rcabc.org/images/5/53/10.3.2.3.-EPDM-A.png]]
+:Drawing NTS
 </div>
+</div><!-- COL-6-MD -->
-<gallery mode="slideshow">
+<div class="col-md-6">
-Part 10 - SBS Parapet A1.png | Drawing A1
-Part 10 - SBS Parapet A2.png | Drawing A2
-Part 10 - SBS Parapet B,C.png | Drawings B and C
-</gallery>
-</div><!-- COL-MD-7 -->
-<div class="col-md-5">
 === WORK INCLUDED ===
-;(1) [[SBS Roof Systems Standard#PART_10|'''Base sheet membrane flashing''']]:
+;(1) [[EPDM Roof Systems Standard#PART_6|<big>Air/Vapour Control Layers</big>]]:
-:On ''standard parapets'' (609.6 mm (24”) or less in height), install continuous base membrane flashing, from the roof field to outer face of the parapet top.  The machine direction of the membrane shall be oriented vertically.  Carry membrane flashing in one piece over the top and down the exterior face as required in Article 10.3.2.3.
+:As specified by the ''Design Authority'' and installed to provide continuity for optimal control.
+;(2) [[EPDM Roof Systems Standard#PART_7|<big>Insulation</big>]]:
+:Installed in keeping with Section 7.3.  Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
+;(3) [[EPDM Roof Systems Standard#PART_8|<big>Insulation Overlay Panel</big>]]:
+:Required for fully adhered membrane systems or when overburden is specified.  Panels must be offset and staggered from underlying insulation panels.
+;(4) [[EPDM Roof Systems Standard#PART_9|<big>Field Membrane</big>]]:
+:See Table 9.2. for permissible application methods and corresponding membrane properties.  Membrane must be installed according to the requirements in Section 9.3.
+;(5) [[EPDM Roof Systems Standard#PART_10|<big>Edge Securement</big>]]:
+:Proprietary to the membrane manufacturer.  Edge securement is required, irrespective of how the membrane is applied (i.e., adhered, self-adhered, mechanically fastened).
+;(6) [[EPDM Roof Systems Standard#PART_10|<big>Mechanical Fastening</big>]]:
+:Edge securement must be anchored to the roof structure to prevent membrane movement.
+;(7) [[EPDM Roof Systems Standard#PART_10|<big>Primer or Adhesive</big>]]:
+:Proprietary to the membrane manufacturer.  Primer may be required for self-adhered membranes; adhesive is required for all other applications.  All membranes applied to the vertical substrate must be fully adhered.
+;(8) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Flashing</big>]]:
+:May be run continuously up the vertical substrate from the field or installed as separate flashing (see membrane manufacturer requirements).  Membrane shall be carried up the vertical substrate at least 203.2 mm (8”) above the ''finished roof system surface'', plus at least 76.2 mm (3”) for wall control layer overlap. In regions where heavy snow accumulation is possible, or to accommodate future roof membrane replacement, membrane should be carried at least 304.8 mm (12”) up the vertical substrate.
+;(9) [[EPDM Roof Systems Standard#PART_10|<big>Rigid Support for Through-wall Flashing (optional)</big>]]:
+:Where the ''wall'' is insulated on the exterior side of the structure, ''continuity'' of air and vapour controls must be protected from future damage during roof replacement.  This can be done by securing a suitable membrane receiver panel against the insulation.  The panel must be permanently affixed to the structure through the insulation.  During replacement of the roof membrane, membrane flashing may be removed from the receiver panel without disturbing the insulation and control layers.  In this way, material waste is also reduced.
-:An alternative method of flashing for may be used (see Drawing (3C)) and is permissible <u>only if allowed in writing by the ''manufacturer''</u>.  Refer to the Standard for specific requirements.
+:Where the membrane may not easily separate from its receiver during roof replacement, a second panel (not illustrated) can be screw-fastened to the first.  During replacement, both the membrane and the secondary panel may be removed together, simplifying membrane replacement.
+;(10) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Flashing Substrate</big>]]:
+:''Continuity'' of the water-resistive barrier means it must pass through the insulation assembly installed on the exterior side of the wall structure.  To do that, a membrane flashing passes through the insulation where the ''roof system'' terminates.  Blocking or another suitable support (i.e., hat track) is necessary to support the membrane and its linear metal flashing carrier.  Wood blocking illustrated.
+;(10) [[EPDM Roof Systems Standard#PART_10|<big>Through-wall Flashing</big>]]:
+:A self-adhered membrane is used to transition from the ''wall'' to the ''roofing assembly'', providing a continuous drainage path for water. Secure the ''linear metal flashing'' to the support underneath (see Item 9 or 10 above).
-:Note the minimum height requirement for parapets (127 mm (5”)), illustrated in Drawing (A).
+:Note that the water resistive barrier membrane from the ''wall'' (installed by others – see Related Work below) overlaps the through-wall flashing (installed by the ''Contractor'') and is supported by a metal flashing with drip edge, to direct water from the wall to the roof surface.
-;(2) [[SBS Roof Systems Standard#PART_10|'''Cap sheet membrane flashing''']]:
-:Installed as required in Part 10 and applied as the second or third of a multi-ply membrane system, providing required coverage above the ''finished roof system surface''.  The three illustrated colours in Drawing (1) indicate various permissible methods, depending upon the ''manufacturer's'' published requirements:
-::'''Option A''': Cap sheet membrane flashing terminated at the top inside edge of the parapet.
-::'''Option B''': Cap sheet membrane flashing carried onto parapet top surface at least 50.8 mm (2”).
-::'''Option C''': Cap sheet membrane flashing completely covering top surface of parapet, terminated at outside edge.
-:Parapet in Drawing (A) illustrates the lowest permissible height (127 mm (5”)).  Note that for parapets with an inside face height up to 203.2 mm (8”), no fewer than two plies of sheet membrane flashing must cover the inside face of the parapet.
-:When the parapet height (measured on the inside face) exceeds 203.2 mm (8”) (Ref. Drawings (C) and (D)), no fewer than two plies of sheet membrane flashing shall be carried up at least 203.2 mm above the ''finished roof system surface''.
+=== RELATED WORK BY OTHERS ===
-;(3) [[SBS Roof Systems Standard#PART_13|'''Metal Cap Flashing''']]:
+;(A) [[EPDM Roof Systems Standard#PART_2|<big>Acceptable Deck</big>]]
-:Designed and installed as required in Part 13 and secured on the outside face with a metal cleat (see Article 13.3.2.1., “General Requirements for Linear Metal Flashings”).  Gasketed screw fasteners shown on the inside face of the flashing.
+:Illustrated deck is representative.  See Sub-section 2.1.5. for acceptable ''deck'' types and conditions.
-;(4) [[SBS Roof Systems Standard#PART_13|'''Securement cleat''']]:
+;(B) [[EPDM Roof Systems Standard#PART_2|<big>Wall Structure</big>]]
-:Ref. Drawing (A).
+:Illustrated wall is representative.  Wall control layers (i.e., water resistive barrier) must overlap ''roofing system'' to achieve ''continuity''.  See Sub-section 2.1.7. for wall conditions.
-;(5) [[SBS Roof Systems Standard#PART_13|'''Counter-flashing''']]:
+;(C) <big>Wall System Finish</big>
-:Required if membrane on inside surface of parapet is not protected from UV light (granule-surfaced membrane is considered UV resistant; Ref. Drawing (B)).  The illustrated flashing underlaps the cap flashing and is secured to the inside face of the parapet with S-locked seams and additional gasketed fasteners; all fasteners must be located at least 88.9 mm (3-1/2”) above the ''finished roof system surface''.  Counter-flashing may be removed for future sheet membrane renewal.
+:Illustrated system is representative and shows water-resistive barrier overlapping roof membrane (See above, Item 8).
-;(6) '''Machine direction''':
-:Membrane oriented in the direction of manufacturing.
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+</div><!-- COL-6-MD -->
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-'''NOTE''': See the [[SBS Roof Systems Standard | '''Standard''']] for additional requirements.
+'''NOTE''': See the [[EPDM Roof Systems Standard | '''EPDM Roof Systems Standard''']] for additional requirements.
 <hr>
-[[SBS Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''"SBS" Roof System Details'']]
+[[EPDM Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''EPDM Roof System Details'']]
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Difference between revisions of "Draft CD 1"

Difference between revisions of "Draft CD 1"

Latest revision as of 15:01, 16 February 2024

1 WORK INCLUDED

2 RELATED WORK BY OTHERS

3 Accept Terms Of Use