View source for PVC Air and Vapour Controls (Field)

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>PVC 6.3.1 Air and Vapour Controls (field)</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 [[PVC 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>'''PVC Details'''</big></div>
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[[File:Figure 6.3.1-2.jpg|class=img-responsive | link=https://rpm.rcabc.org/images/d/d0/Figure_6.3.1-2.jpg]] 
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=== WORK INCLUDED ===
;(1) [[PVC Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: Recommended over steel decks, to provide continuous support for membrane control layers (this fulfills the requirement for continuity, ''British Columbia Building Code'', Div. B, '''5.4.1.2''' ('''3''')).
;(2) [[PVC Roof Systems Standard#PART_6|'''Air or Vapour Controls''']]: Self-adhering membrane (typical).
;(3) [[PVC Roof Systems Standard#PART_6|'''Metal Support''']]: For fully or intermittently unsupported side or end laps.  Use pre-finished galvanized steel (min. 24 Ga.), fabricated at least 100 mm (4”) wider than membrane overlaps, and secured with compatible flat-head fasteners (two fasteners per flute, or as otherwise specified).
;(4) [[PVC Roof Systems Standard#PART_6|'''Long edges (side laps)''']]:Centre membrane runs along top flutes of steel deck (applicable when no deck overlay is specified and installed). Overlap membrane side laps at least 50 mm (2”), or as specified by the membrane manufacturer (whichever is greater).  Side laps must be fully supported by the roof deck or a metal support.
;(5) [[PVC Roof Systems Standard#PART_6|'''End laps''']]:Overlap the roll ends at least 100 mm (4”), or as specified by the membrane manufacturer (whichever is greater).  End laps must be fully supported by the roof deck or a metal support.

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=== RELATED WORK BY OTHERS ===
;(A) [[PVC Roof Systems Standard#PART_2|'''Acceptable Deck''']]
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'''NOTE''': See the [[PVC Roof Systems Standard | '''Standard''']] for additional requirements.

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