Difference between revisions of "Draft CD 4"

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Difference between revisions of "Draft CD 4"

(WORK INCLUDED)
 
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<big><big>Division D - Construction Details</big></big>
 
<big><big>Division D - Construction Details</big></big>
 
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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>
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<big><big><big><big><big>EPDM | Membrane Termination D (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 panel-success">
 
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<div class="panel-heading"><big>'''SBS Details'''</big></div>
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<div class="panel-heading"><big>'''EPDM Details'''</big></div>
 
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Use arrows to scroll through related images (A, B, and C). Click any image to expand.
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<br>
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[[File:10.3.2.3.-EPDM-D.png |class=img-responsive | link=https://rpm.rcabc.org/images/7/74/10.3.2.3.-EPDM-D.png]]
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:Drawing NTS
 
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Image:Part 10 - SBS Parapet A1.png | link=https://rpm.rcabc.org/images/a/a9/Part_10_-_SBS_Parapet_A1.png
 
Image:Part 10 - SBS Parapet A2.png | link=https://rpm.rcabc.org/images/f/f9/Part_10_-_SBS_Parapet_A2.png
 
Image:Part 10 - SBS Parapet B,C.png | link=https://rpm.rcabc.org/images/c/cf/Part_10_-_SBS_Parapet_B%2CC.png
 
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
  
;(1) [[SBS Roof Systems Standard#PART_10|'''Base sheet membrane flashing''']]:  
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;(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 topThe 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.
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:As specified by the ''Design Authority'' and installed to provide continuity for optimal control.
 
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;(2) [[EPDM Roof Systems Standard#PART_7|<big>Insulation</big>]]:
: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.
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:Installed in keeping with Section 7.3Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
 
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;(3) [[EPDM Roof Systems Standard#PART_8|<big>Insulation Overlay Panel</big>]]:
:Note the minimum height requirement for parapets (127 mm (5”)), illustrated in Drawing (A).
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:Required for fully adhered membrane systems or when overburden is specified.  Panels must be offset and staggered from underlying insulation panels.
;(2) [[SBS Roof Systems Standard#PART_10|'''Cap sheet membrane flashing''']]:
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;(4) [[EPDM Roof Systems Standard#PART_9|<big>Field Membrane</big>]]:
: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:
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:See Table 9.2. for permissible application methods and corresponding membrane propertiesMembrane must be installed according to the requirements in Section 9.3.
::'''Option A''': Cap sheet membrane flashing terminated at the top inside edge of the parapet.
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;(5) [[EPDM Roof Systems Standard#PART_10|<big>Edge Securement</big>]]:
::'''Option B''': Cap sheet membrane flashing carried onto parapet top surface at least 50.8 mm (2”).
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:Proprietary to the membrane manufacturerEdge securement is required, irrespective of how the membrane is applied (i.e., adhered, self-adhered, mechanically fastened).
::'''Option C''': Cap sheet membrane flashing completely covering top surface of parapet, terminated at outside edge.
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;(6) [[EPDM Roof Systems Standard#PART_10|<big>Mechanical Fastening</big>]]:
: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.
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:Edge securement must be anchored to the roof structure to prevent membrane movement.
 
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;(7) [[EPDM Roof Systems Standard#PART_10|<big>Primer or Adhesive</big>]]:
: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''.
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:Proprietary to the membrane manufacturerPrimer 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.
;(3) [[SBS Roof Systems Standard#PART_13|'''Metal Cap Flashing''']]:
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;(8) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Flashing</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.
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: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.
;(4) [[SBS Roof Systems Standard#PART_13|'''Securement cleat''']]:
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;(9) [[EPDM Roof Systems Standard#PART_10|<big>Membrane Edge Securement and Sealant</big>]]:
:Ref. Drawing (A).
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:All membranes applied to a vertical surface must be mechanically fastened. Mechanically fastened termination (“term”) bar with tooled sealant shown.
;(5) [[SBS Roof Systems Standard#PART_13|'''Counter-flashing''']]:
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;(10) [[EPDM Roof Systems Standard#PART_10|<big>Cut Reglet Counter-flashing and Sealant</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.
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:Cut reglet counter-flashing with bead of sealant applied in reglet cutThis flashing provides secondary protection for the “term” bar and safe-guards the sealant from weather-induced deterioration and mechanical damage.
  
;(6) '''Machine direction''':
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=== RELATED WORK BY OTHERS ===
:Membrane oriented in the direction of manufacturing.
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;(A) [[EPDM Roof Systems Standard#PART_2|<big>Acceptable Deck</big>]]
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:Illustrated deck is representative.  See Sub-section 2.1.5. for acceptable ''deck'' types and conditions.
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;(B) [[EPDM Roof Systems Standard#PART_2|<big>Wall Structure</big>]]
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: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.
  
 
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'''NOTE''': See the [[SBS Roof Systems Standard | '''Standard''']] for additional requirements.
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'''NOTE''': See the [[EPDM Roof Systems Standard | '''EPDM Roof Systems Standard''']] for additional requirements.
  
 
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[[SBS Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''"SBS" Roof System Details'']]
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Latest revision as of 15:30, 16 February 2024



Division D - Construction Details


EPDM | Membrane Termination D (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


10.3.2.3.-EPDM-D.png

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) Membrane Edge Securement and Sealant
All membranes applied to a vertical surface must be mechanically fastened. Mechanically fastened termination (“term”) bar with tooled sealant shown.
(10) Cut Reglet Counter-flashing and Sealant
Cut reglet counter-flashing with bead of sealant applied in reglet cut. This flashing provides secondary protection for the “term” bar and safe-guards the sealant from weather-induced deterioration and mechanical damage.

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.

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


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