Difference between revisions of "SBS 11.3.2.2-1 Cast Iron Drains"

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Difference between revisions of "SBS 11.3.2.2-1 Cast Iron Drains"

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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 11.3.2.2-1 Cast Iron Drains</big></big></big></big></big>
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<big><big><big><big><big>SBS | Cast Iron Drain ([[SBS_Roof_Systems_Standard#11.3.3.2._General_Requirements_for_Cast-iron_Roof_Drains | Article 11.3.3.2.]])</big></big></big></big></big>
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{| class="wikitable" | style="color: black; background-color: orange; width: 100%;text-align:center"
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{{Template:Construction Details Header}}
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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 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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;(1) [[SBS Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: If required by design authority.
 
;(1) [[SBS Roof Systems Standard#PART_5|'''Supporting Deck Overlay''']]: If required by design authority.
 
;(2) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layers''']]: If required by design authority.
 
;(2) [[SBS Roof Systems Standard#PART_6|'''Air or Vapour Control Layers''']]: If 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_7|'''Insulation''']]: Mechanically fastened.  See available insulation products in the [[Division C| Accepted Materials]] Division of this ''Manual''.
 
;(4) [[SBS Roof Systems Standard#PART_8|'''Insulation Overlay''']]: Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.
 
;(4) [[SBS Roof Systems Standard#PART_8|'''Insulation Overlay''']]: Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.
 
;(5) [[SBS Roof Systems Standard#PART_9|'''Primary Membrane''']] and [[SBS Roof Systems Standard#PART_9| '''Membrane Protection''']]
 
;(5) [[SBS Roof Systems Standard#PART_9|'''Primary Membrane''']] and [[SBS Roof Systems Standard#PART_9| '''Membrane Protection''']]

Latest revision as of 18:00, 27 October 2023



Division D - Construction Details

SBS | Cast Iron Drain ( Article 11.3.3.2.)

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

10.3.6.1.jpg

1 WORK INCLUDED

(1) Supporting Deck Overlay
If required by design authority.
(2) Air or Vapour Control Layers
If required by design authority.
(3) Insulation
Mechanically fastened. See available insulation products in the Accepted Materials Division of this Manual.
(4) Insulation Overlay
Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.
(5) Primary Membrane and Membrane Protection
(6) Mastic
As approved by manufacturer.
(7) Base Membrane Flashing
As approved by membrane manufacturer (See (C) below).

2 RELATED WORK BY OTHERS

(A) Acceptable Supporting Deck Structure
(B) Roof Drain Assembly
(C) Lead Flashing
Minimum 15 kg / m² (3 lb / ft²) weight lead sheet; flange extending minimum 25 mm (1") into bowl to 150 mm (6") beyond perimeter of drain; embed in mastic (6) and prime top surface where required by manufacturer or minimum 1 m x 1 m (39" x 39") 3 mm thick modified bituminous base sheet; to be supplied by trade supplying roof drain. For optional installation methods that use a membrane flashing in place of lead, see the Application requirements under 11.3.2.2 Cast-iron Roof Drains.
  • Leader size is determined by using the calculation found in the BC Building Code at Appendix P.7.4.10 and Section 7.4.10.11 (Section 7.4.10.10 for gutters)(current edition) in conjunction with the 15-minute rainfall value from the National Building Code, Appendix C.

NOTE: See the Standard for additional requirements.

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