Difference between revisions of "Draft CD 1"

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Difference between revisions of "Draft CD 1"

 
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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>SBS | Metal Edge Termination ([[SBS_Roof_Systems_Standard#10.3.4.2._Low_Profile_Edge | Article 10.3.4.2.]])</big></big></big></big></big>
 
{{Template:Construction Details Header}}
 
{{Template:Construction Details Header}}
 
<div class="panel panel-success">
 
<div class="panel panel-success">
 
<div class="panel-heading"><big>'''SBS Details'''</big></div>
 
<div class="panel-heading"><big>'''SBS Details'''</big></div>
 
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<div class="panel-body">
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<div class="col-md-6">
 
<div style="text-align:center; vertical-align:center">
 
<div style="text-align:center; vertical-align:center">
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<big>Use arrows to scroll through related images (A, B, and C). Click any image to expand.</big>
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<br>
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[[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]]
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:Drawing NTS
 
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<gallery mode="slideshow" showthumbnails>
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Part 10 - SBS Parapet A1.png | A1
 
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Part 10 - SBS Parapet A2.png | link=https://rpm.rcabc.org/images/f/f9/Part_10_-_SBS_Parapet_A2.png
 
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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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</gallery>
 
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
  
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;(1) [[SBS Roof Systems Standard#PART_10|'''Base sheet membrane flashing''']]:
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;(1) <big>Suitable field substrate</big>:
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: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.
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:May be the [[SBS Roof Systems Standard#PART_2| roof ''deck'']] or [[SBS Roof Systems Standard#PART_5 |''deck'' overlay]] (if an uninsulated system), or [[SBS Roof Systems Standard#PART_8| insulation and an overlay]] (if ''conventionally insulated'').
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;(2) <big>Primer or adhesive</big>:
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: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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:For self-adhered or adhered membranes, as required by the ''manufacturer''.
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;(3) [[SBS Roof Systems Standard#PART_9|<big>Base field membrane</big>]]:
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:Note the minimum height requirement for parapets (127 mm (5”)), illustrated in Drawing (A).
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:Carried continuously over the outside edge at least 50.8 mm (2”) downward, or 50.8 mm past any cold joint.
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;(2) [[SBS Roof Systems Standard#PART_10|'''Cap sheet membrane flashing''']]:
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;(4) <big>Sealant or mastic</big>:
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: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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:Applied on membrane, beneath metal edge flashing.
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::'''Option A''': Cap sheet membrane flashing terminated at the top inside edge of the parapet.
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;(5) <big>[[SBS Roof Systems Standard#PART_13| Metal edge flashing</big>]] (flush with roof surface):
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::'''Option B''': Cap sheet membrane flashing carried onto parapet top surface at least 50.8 mm (2”).
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:Fasteners spaced no more than 203.2 mm (8”) on the top face in two offsetting rows.
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::'''Option C''': Cap sheet membrane flashing completely covering top surface of parapet, terminated at outside edge.
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:A hemmed drip edge (shown) is required (Refer to Article 13.2.2.1. for fabrication requirements).
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: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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;(6) [[SBS Roof Systems Standard#PART_9|<big>Membrane flashing strip</big>]]:
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:Applied to the metal edge flashing and overlapping onto the field membrane at least 101.6 mm (4”). Prime when required by the ''manufacturer'' (primer illustrated).
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: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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;(7) [[SBS Roof Systems Standard#PART_9|<big>Cap field membrane</big>]]:
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;(3) [[SBS Roof Systems Standard#PART_13|'''Metal Cap Flashing''']]:
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:Installed according to Part 9 requirements.
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: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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;(8) <big>Edge mastic</big>:
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;(4) [[SBS Roof Systems Standard#PART_13|'''Securement cleat''']]:
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:Apply mastic or another membrane-compatible sealant to the outer exposed edge of the field cap sheet membrane.  Coat with granules.
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:Ref. Drawing (A).
 
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;(5) [[SBS Roof Systems Standard#PART_13|'''Counter-flashing''']]:
 
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: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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;(6) '''Machine direction''':
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=== RELATED WORK BY OTHERS ===
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:Membrane oriented in the direction of manufacturing.
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;(A) [[SBS Roof Systems Standard#PART_2|<big>Structural Roof Deck</big>]]
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:Generic and representative only.
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;(B) [[EPDM Roof Systems Standard#PART_10|<big>Roof edge substrate</big>]]
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:Wood blocking, required for conventionally insulated roofs.
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;(C) <big>Wall assembly</big>
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:Generic and representative only.
  
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'''NOTE''': See the [[SBS Roof Systems Standard | '''Standard''']] for additional requirements.
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'''NOTE''': See the [[SBS Roof Systems Standard | '''SBS Roof Systems Standard''']] for additional requirements.
  
 
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<hr>
  
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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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[[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 21:50, 27 October 2025



Division D - Construction Details

SBS | Metal Edge Termination ( Article 10.3.4.2.)

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.

SBS Details


10.3.2.3.-EPDM-A.png

Drawing NTS

1 WORK INCLUDED

(1) Suitable field substrate
May be the roof deck or deck overlay (if an uninsulated system), or insulation and an overlay (if conventionally insulated).
(2) Primer or adhesive
For self-adhered or adhered membranes, as required by the manufacturer.
(3) Base field membrane
Carried continuously over the outside edge at least 50.8 mm (2”) downward, or 50.8 mm past any cold joint.
(4) Sealant or mastic
Applied on membrane, beneath metal edge flashing.
(5) Metal edge flashing (flush with roof surface):
Fasteners spaced no more than 203.2 mm (8”) on the top face in two offsetting rows.
A hemmed drip edge (shown) is required (Refer to Article 13.2.2.1. for fabrication requirements).
(6) Membrane flashing strip
Applied to the metal edge flashing and overlapping onto the field membrane at least 101.6 mm (4”). Prime when required by the manufacturer (primer illustrated).
(7) Cap field membrane
Installed according to Part 9 requirements.
(8) Edge mastic
Apply mastic or another membrane-compatible sealant to the outer exposed edge of the field cap sheet membrane. Coat with granules.

2 RELATED WORK BY OTHERS

(A) Structural Roof Deck
Generic and representative only.
(B) Roof edge substrate
Wood blocking, required for conventionally insulated roofs.
(C) Wall assembly
Generic and representative only.

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

Back to SBS Roof System Details

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