SBS Plumbing Vent (Conventional Roof System)

Division D - Construction Details

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

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SBS Details

(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
(5) Primary Membrane and Membrane Protection
(6) Mastic: As approved by manufacturer.
(7) Membrane Flashing: Onto primed metal flashing flange or adhesive coated for non-bituminous flexible membrane systems.
(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.

(A) Acceptable Supporting Deck Structure
(B) Plumbing Stack: Extend to match top of metal flashing. Aluminum flashings are required for torch-applied roof systems.
(C) Wood Blocking: Optional.
(D) Metal Flashing: Apply in a bed of mastic. Fastened over membrane to wood blocking or roof deck.
(E) Typical Aluminum Cap: For use with aluminum flashing. See requirements for Settlement Caps on strip-in plumbing flashings.
(F) Typical Lead Cap: For use with lead flashing.
(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.

NOTE: See the Standard for additional requirements.

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