Difference between revisions of "SBS 2-Part Retrofit Flashing (Cable Penetration)"

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Difference between revisions of "SBS 2-Part Retrofit Flashing (Cable Penetration)"

 
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<big><big>Division D - Construction Details</big></big>
 
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<big><big><big><big><big>SBS | 2-Part Retrofit Flashing (Cable Penetration) ([[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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<div class="panel-heading"><big>'''SBS Details'''</big></div>
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[[File:SBS 11.3.3.3-2 2-Part Cable 1.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/8/82/SBS_11.3.3.3-2_2-Part_Cable_1.jpg]]
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[[File:SBS 11.3.3.3-2 2-Part Cable 2.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/8/89/SBS_11.3.3.3-2_2-Part_Cable_2.jpg]]  
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=== WORK INCLUDED ===
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;(1) [[SBS Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: Optional, depending upon deck condition and roof system requirements.
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;(2) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layer''']]: Installed following the requirements of '''Part 6''' in this Standard.  Tie in the control layers with membranes installed by other trades, to preserve continuity of the building enclosure ('''2a''').
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;(3) [[SBS Roof Systems Standard#PART_7|'''Insulation''']]: Installed in staggered and offset layers, and secured in accordance with the design of the system, which is based on the ''British Columbia Building Code'', Part 4 and Part 5, and on '''Part 3''' of the '''''RoofStar Guarantee Standards''''' for the membrane system type.
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;(4) [[SBS Roof Systems Standard#PART_8|'''Insulation Overlay''']]: Subject to the requirements of '''Part 8''' in the '''''RoofStar Guarantee Standards''''' for the membrane system type.
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;(5) [[SBS Roof Systems Standard#PART_9|'''Field Membrane (field)''']]: Mechanically attached, torch-applied, adhered (shown) or self-adhered.  See Tables '''9.1''' for acceptable membrane types and securement options.  See '''9.3''' for application requirements.
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;(6) Two-part Penetration Cable Flashing: May be proprietary or shop-fabricated from galvanized sheet metal, consisting of two parts that are riveted together in the field, secured to the roof assembly and then ‘stripped’ into the field membrane to waterproof the flashing.  This type of flashing may be adapted in its design to accommodate a pipe that turns horizontally to the roof field plane.  The exit point for the penetration must be shielded with a hood and sloped downward to shed water.  Secure separate lid with screw-type fasteners. 
  
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=== WORK INCLUDED ===
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:See '''11.2.3 Curbs and Penetration Flashings''' for fabrication standards.
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;(1) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSSUBSTRATES|'''Gypsum Deck Overlay''']]: Required when insulation is too thin to span flutes of steel decking or as thermal barrier when specified by the design authority.
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;(7) Mastic: Applied to area receiving metal penetration flashing. See '''11.3.3.1''' ('''12''')('''1''').
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;(2) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSVAPOUR|'''Vapour Retarder''']]: If required by design authority.
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;(8) [[SBS Roof Systems Standard#PART_10|'''Base Membrane Flashing (target patch)''']]: Cut from a single piece of self-adhering or torch-applied base membrane material, it is fashioned with a hole to fit around the penetration flashing and is sealed to the flashing and the roof field. The target patch must cover the flashing flange and extend beyond the edge of the flange, onto the field base membrane, by at least 100 mm (4”).  See '''11.3.3.1''' ('''12''') for all applicable standards.
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;(3) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSINSULATION|'''Insulation''']]: Mechanically fastened where possible.  See available insulation products in the [[Roof Deck Insulation|'''Accepted Materials''']] section of this Manual.
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;(9) [[SBS Roof Systems Standard#PART_9|'''Cap Membrane (field)''']]: Granule-surfaced membrane.  See Tables '''9.1''' and '''9.2''' for acceptable cap membrane types and their securement options. See '''9.3''' for application requirements.
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;(4) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSINSULATIONOVERLAY|'''Insulation Overlay Board''']]: As required.
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;(10)[[SBS Roof Systems Standard#PART_10|'''Cap Membrane (flashing)''']]: Granule-surfaced membrane, installed following the standards published in '''Part 11'''.
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;(5) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSBASE|'''Base Sheet''']]: Adhered to overlay board using asphalt, cold adhesive, self-adhered, mechanical attachment or torch applied according to manufacturer's specification and to <i>RoofStar Guarantee Standards</i>. Torching directly to wood surfaces is not permitted.
 
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;(6) '''Mastic''': Compatible with membrane
 
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;(7) [[RoofStar Guarantee Standards for SBS Roof Systems#SBS-STRIPPING|'''Base Sheet Flashing''']]: Adhered according to manufacturer's specifications, using cold adhesive, self-adhered or torch applied. Must be carried up flashing and terminate under hood flange. Torching directly to wood surfaces is not permitted.
 
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;(8) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSBASE|'''Cap Sheet''']]: Applied according to manufacturer's printed instructions and to <i>RoofStar Guarantee Standards</i>.
 
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;(9) [[RoofStar Guarantee Standards for SBS Roof Systems#SBS-STRIPPING|'''Cap Sheet Flashing''']]: Applied according to manufacturer's printed instructions and to <i>RoofStar Guarantee Standards</i>. Must be carried up flashing and terminate under hood flange.
 
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
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;(A) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSDECKS|'''Acceptable Deck''']]
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;(A) [[SBS Roof Systems Standard#PART_2|'''Acceptable Supporting Deck Structure''']]
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;(B) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSWOODBLOCKING|'''Wood Blocking''']]:
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;(B) Fibreglass insulation: Cavity fill, to inhibit condensation inside the flashing.
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;(C) [[RoofStar Guarantee Standards for SBS Roof Systems#SBSSTRIPFLASH|'''Two Piece Flashing''']]: Assembled around protrusion, laid in bed of compatible mastic on top of base sheet. Mechanically fasten two components together and fasten flange to wood blocking or deck.
 
  
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NOTE: Refer to <i>RGC Guarantee Standards</i> for additional requirements.
 
  
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'''NOTE''': See the [[SBS Roof Systems Standard | '''Standard''']] for additional requirements.
  
 
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Latest revision as of 18:16, 27 October 2023



Division D - Construction Details

SBS | 2-Part Retrofit Flashing (Cable Penetration) ( 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

SBS 11.3.3.3-2 2-Part Cable 1.jpg

SBS 11.3.3.3-2 2-Part Cable 2.jpg

1 WORK INCLUDED

(1) Supporting Deck Overlay
Optional, depending upon deck condition and roof system requirements.
(2) Air or Vapour Control Layer
Installed following the requirements of Part 6 in this Standard. Tie in the control layers with membranes installed by other trades, to preserve continuity of the building enclosure (2a).
(3) Insulation
Installed in staggered and offset layers, and secured in accordance with the design of the system, which is based on the British Columbia Building Code, Part 4 and Part 5, and on Part 3 of the RoofStar Guarantee Standards for the membrane system type.
(4) Insulation Overlay
Subject to the requirements of Part 8 in the RoofStar Guarantee Standards for the membrane system type.
(5) Field Membrane (field)
Mechanically attached, torch-applied, adhered (shown) or self-adhered. See Tables 9.1 for acceptable membrane types and securement options. See 9.3 for application requirements.
(6) Two-part Penetration Cable Flashing
May be proprietary or shop-fabricated from galvanized sheet metal, consisting of two parts that are riveted together in the field, secured to the roof assembly and then ‘stripped’ into the field membrane to waterproof the flashing. This type of flashing may be adapted in its design to accommodate a pipe that turns horizontally to the roof field plane. The exit point for the penetration must be shielded with a hood and sloped downward to shed water. Secure separate lid with screw-type fasteners.
See 11.2.3 Curbs and Penetration Flashings for fabrication standards.
(7) Mastic
Applied to area receiving metal penetration flashing. See 11.3.3.1 (12)(1).
(8) Base Membrane Flashing (target patch)
Cut from a single piece of self-adhering or torch-applied base membrane material, it is fashioned with a hole to fit around the penetration flashing and is sealed to the flashing and the roof field. The target patch must cover the flashing flange and extend beyond the edge of the flange, onto the field base membrane, by at least 100 mm (4”). See 11.3.3.1 (12) for all applicable standards.
(9) Cap Membrane (field)
Granule-surfaced membrane. See Tables 9.1 and 9.2 for acceptable cap membrane types and their securement options. See 9.3 for application requirements.
(10)Cap Membrane (flashing)
Granule-surfaced membrane, installed following the standards published in Part 11.

2 RELATED WORK BY OTHERS

(A) Acceptable Supporting Deck Structure
(B) Fibreglass insulation
Cavity fill, to inhibit condensation inside the flashing.


NOTE: See the Standard for additional requirements.

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