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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=== WORK INCLUDED ===
 
=== WORK INCLUDED ===
;(1) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSSUBSTRATES|'''Gypsum Deck Overlay''']]: If required by design authority.
+
;(1) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSSUBSTRATES|'''Supporting Deck Overlay''']]: If required by design authority.
;(2) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSVAPOUR|'''Vapour Retarder''']]: If required by design authority.
+
;(2) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSAIRVAPOUR|'''Air or Vapour Control Layers''']]: If required by design authority.
 
;(3) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSINSULATION|'''Insulation''']]: Mechanically fastened.  See available insulation products in the [[Roof Deck Insulation|'''Accepted Materials''']] section of this Manual.
 
;(3) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSINSULATION|'''Insulation''']]: Mechanically fastened.  See available insulation products in the [[Roof Deck Insulation|'''Accepted Materials''']] section of this Manual.
;(4) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSINSULATIONOVERLAY|'''Insulation Overlay Board''']]: Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.
+
;(4) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSINSULATIONOVERLAY|'''Insulation Overlay''']]: Asphalt adhered or mechanically fastened. Two layers required over heat-sensitive insulation.
;(5) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSBASE|'''Primary Membrane and Membrane Protection''']]
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;(5) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSBASE|'''Primary Membrane''']] and [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSPROTECTION| '''Membrane Protection''']]
 
;(6) '''Mastic''':  As approved by manufacturer.
 
;(6) '''Mastic''':  As approved by manufacturer.
;(7) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBS-STRIPPING|'''Base Sheet Flashing''']]: As approved by membrane manufacturer (See (C) below).
+
;(7) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBS-STRIPPING|'''Base Membrane Flashing''']]: As approved by membrane manufacturer (See (C) below).
  
 
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=== RELATED WORK BY OTHERS ===
 
=== RELATED WORK BY OTHERS ===
;(A) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSDECKS|'''Acceptable Deck''']]
+
;(A) [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSDECKS|'''Acceptable Supporting Deck Structure''']]
 
;(B) '''Roof Drain Assembly'''
 
;(B) '''Roof Drain Assembly'''
;(C) '''Lead Flashing''': Minimum 15 kg / m&#178; (3 lb / ft&#178;) 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 asphalt and gravel built-up systems <u>only</u>.
+
;(C) '''Lead Flashing''': Minimum 15 kg / m&#178; (3 lb / ft&#178;) 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, see [[RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies#SBSCASTDRAINS|'''11.3.2.2 Cast-iron Roof Drains''']].
 
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Revision as of 19:10, 30 January 2019

RoofStar Guarantee Standards are blue-linked
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 section 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, see 11.3.2.2 Cast-iron Roof Drains.

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

  • 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.


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