Difference between revisions of "SBS Plumbing Vent (Conventional Roof System)"

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Difference between revisions of "SBS Plumbing Vent (Conventional Roof System)"

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<big><big>Division D - Construction Details</big></big>
 
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{| class="wikitable" | style="color: black; background-color: orange; width: 100%;text-align:center"
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<big><big><big><big><big>SBS | Plumbing Vent (Conventional Roof System) ([[SBS_Roof_Systems_Standard#12.3.2.1._General_Requirements_for_Flashing_Penetrations | Article 12.3.2.1.]])</big></big></big></big></big>
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| colspan="2"  | <big>'''''Notice to Reader'''''</big>
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| style="color: black; background-color: #ffffcc; width: 100%;text-align:center" | Images used in a Construction Detail are representative and not prescriptive. Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the requirements of the Standard they represent. Unless otherwise required by the Standard, dimensions, the selection of materials and their application remains the responsibility of the ''Design Authority''.<br><br>The full text of the referenced requirements in the [[SBS Roof Systems Standard | '''Standard''']] may be read by using the <span style="color:#6495ed">'''blue hyperlinks'''</span>
 
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<div class="panel-heading"><big>'''SBS Details'''</big></div>
 
<div class="panel-heading"><big>'''SBS Details'''</big></div>
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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
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;(1) [[SBS Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: If required by ''Design Authority''.
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;(1) [[SBS Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: If specified and included in a ''Tested Assembly'', an ''Assembly with Proven Past Performance'', or a custom-engineered assembly.
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;(2) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layers''']]: If required by ''Design Authority''.
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;(2) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layers''']]: As required by ''Design Authority''.
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;(3) [[SBS Roof Systems Standard#PART_7|'''Insulation''']]: Mechanically fastened. See available insulation products in the [[Roof Deck Insulation|'''Accepted Materials''']] section of this Manual.
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;(3) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layer Tie-in''']]: Illustrated to show AVB continuity with penetration.
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;(4) [[SBS Roof Systems Standard#PART_8|'''Insulation Overlay''']]:
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;(4) [[SBS Roof Systems Standard#PART_7|'''Insulation''']]: Multiple layering shown (Refer to '''Part 7''' for design, material, and installation requirements).
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;(5) [[SBS Roof Systems Standard#PART_9|'''Primary Membrane''']] and [[SBS Roof Systems Standard#PART_9| '''Membrane Protection''']]
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;(5) [[SBS Roof Systems Standard#PART_8|'''Insulation Overlay''']]: As required by the RGC Standard; see '''Part 8''' for design, material, and installation requirements. Additionally, an overlay is required is included in a ''Tested Assembly'', an ''Assembly with Proven Past Performance'', or a custom-engineered assembly.
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;(6) '''Mastic''': As approved by manufacturer.
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;(6) [[SBS Roof Systems Standard#PART_9|'''Field Base Sheet Membrane''']]: Selected to conform to the requirements in [https://rpm.rcabc.org/index.php?title=SBS_Roof_Systems_Standard#9.2.1.1._Membrane_Composition,_Thickness,_and_Selection '''Table 9.2.1.1.'''] and conforming to the options or requirements in a ''Tested Assembly'', an ''Assembly with Proven Past Performance'', or a custom-engineered assembly.
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;(7) [[SBS Roof Systems Standard#PART_10|'''Membrane Flashing''']]: Onto primed metal flashing flange or adhesive coated for non-bituminous flexible membrane systems.
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;(7) [[SBS Roof Systems Standard#PART_12 | '''Penetration Flashing''']]: Purpose-made non-ferrous plumbing vent flashing with separate settlement cap (Item 11), sized to fit the penetration, bedded in a membrane-compatible mastic, and installed with screw fasteners. Aluminum flashings are required for torch-applied ''roof systems''.
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;(8) '''Storm Collar, Typical Lead Cap or Typical Aluminum Cap''': Re-roofing only. Non- bituminous flexible membrane skirt collar, sealed with compatible sealant and stainless steel hose clamps for use with pipes that extend above flashing.
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;(8) [[SBS Roof Systems Standard#PART_12 | '''Membrane Target Patch''']]: Sized to extend at least 101.6 mm (4”) past the edge of the penetration flashing flange and sealed to the field membrane and primed flange.
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;(9) [[SBS Roof Systems Standard#PART_9|'''Field Cap Sheet Membrane''']]: Selected to conform to the requirements in [https://rpm.rcabc.org/index.php?title=SBS_Roof_Systems_Standard#9.2.1.1. Membrane Composition, Thickness, and Selection '''Table 9.2.1.1.'''] and conforming to the options or requirements in a ''Tested Assembly'', an ''Assembly with Proven Past Performance'', or a custom-engineered assembly.
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;(10) '''Mastic''': Applied to edge of membrane and immediately covered with granules (not shown).
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;(11) [[SBS Roof Systems Standard#PART_12 | '''Settlement Cap''']]: Sized to fit both inside the penetration pipe (to direct rainwater into the penetration) and outside the flashing (a snug fit, secured with a screw, is required to keep the cap in place).
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Optional: Vandal-proof cap (not shown).
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;(12) [[SBS Roof Systems Standard#PART_12 | '''EPDM Membrane Wrap (Optional)''']]: Used when the plumbing pipe cannot be cut down to fit inside the flashing (Refer to Article 12.3.2.1., Sentence (16)).
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;(13) [[SBS Roof Systems Standard#PART_12 | '''Flashing Insulation''']]: Factory-applied for insulated flashings, used where condensation between the pipe and the flashing is possible.
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) [[SBS Roof Systems Standard#PART_2|'''Acceptable Supporting Deck Structure''']]
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;(A) [[SBS Roof Systems Standard#PART_2|'''Supporting (Structural) Roof Deck''']]: Steel deck illustrated.
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;(B) '''Plumbing Stack''': Extend to match top of metal flashing.  Aluminum flashings are required for torch-applied roof systems.
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;(B) '''Plumbing Penetration''': Extend to match top of metal flashing.
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;(C) '''Wood Blocking''': Optional.
 
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;(D) [[SBS Roof Systems Standard#PART_11|'''Metal Flashing''']]: Apply in a bed of mastic. Fastened over membrane to wood blocking or roof deck.
 
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;(E) '''Typical Aluminum Cap''': For use with aluminum flashing.  See requirements for [[SBS Roof Systems Standard#PART_11|'''Settlement Caps''']] on strip-in plumbing flashings.
 
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;(F) '''Typical Lead Cap''': For use with lead flashing.
 
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;(G) '''Storm Collar''': Non-Bituminous flexible membrane skirt collar, sealed with compatible sealant and stainless steel hose clamp. Use with pipes that extend above flashings.
 
 
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[[SBS Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''"SBS" Roof System Details'']]
 
[[SBS Roof System Details|<i class="fa fa-chevron-circle-left fa" ></i> Back to ''"SBS" Roof System Details'']]
  
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[[Main Page | <i class="fa fa-home fa"></i> Home]]
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[[RCABC Roofing Practices Manual | <i class="fa fa-home fa"></i> Home]]
  
 
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Latest revision as of 23:27, 6 November 2025



Division D - Construction Details

SBS | Plumbing Vent (Conventional Roof System) ( Article 12.3.2.1.)

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


Part 12 - CD - Plumbing Vent - SBS.png

1 WORK INCLUDED

(1) Supporting Deck Overlay
If specified and included in a Tested Assembly, an Assembly with Proven Past Performance, or a custom-engineered assembly.
(2) Air or Vapour Control Layers
As required by Design Authority.
(3) Air or Vapour Control Layer Tie-in
Illustrated to show AVB continuity with penetration.
(4) Insulation
Multiple layering shown (Refer to Part 7 for design, material, and installation requirements).
(5) Insulation Overlay
As required by the RGC Standard; see Part 8 for design, material, and installation requirements. Additionally, an overlay is required is included in a Tested Assembly, an Assembly with Proven Past Performance, or a custom-engineered assembly.
(6) Field Base Sheet Membrane
Selected to conform to the requirements in Table 9.2.1.1. and conforming to the options or requirements in a Tested Assembly, an Assembly with Proven Past Performance, or a custom-engineered assembly.
(7) Penetration Flashing
Purpose-made non-ferrous plumbing vent flashing with separate settlement cap (Item 11), sized to fit the penetration, bedded in a membrane-compatible mastic, and installed with screw fasteners. Aluminum flashings are required for torch-applied roof systems.
(8) Membrane Target Patch
Sized to extend at least 101.6 mm (4”) past the edge of the penetration flashing flange and sealed to the field membrane and primed flange.
(9) Field Cap Sheet Membrane
Selected to conform to the requirements in Membrane Composition, Thickness, and Selection Table 9.2.1.1. and conforming to the options or requirements in a Tested Assembly, an Assembly with Proven Past Performance, or a custom-engineered assembly.
(10) Mastic
Applied to edge of membrane and immediately covered with granules (not shown).
(11) Settlement Cap
Sized to fit both inside the penetration pipe (to direct rainwater into the penetration) and outside the flashing (a snug fit, secured with a screw, is required to keep the cap in place).

Optional: Vandal-proof cap (not shown).

(12) EPDM Membrane Wrap (Optional)
Used when the plumbing pipe cannot be cut down to fit inside the flashing (Refer to Article 12.3.2.1., Sentence (16)).
(13) Flashing Insulation
Factory-applied for insulated flashings, used where condensation between the pipe and the flashing is possible.

2 RELATED WORK BY OTHERS

(A) Supporting (Structural) Roof Deck
Steel deck illustrated.
(B) Plumbing Penetration
Extend to match top of metal flashing.

NOTE: See the Standard for additional requirements.

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