SBS Curb for Multiple Penetrations

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SBS Curb for Multiple Penetrations

Revision as of 18:12, 7 September 2021 by James Klassen (talk | contribs)

Division D - Construction Details

SBS Curbs and Sleepers (multiple penetrations)

Notice to Reader
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.

The full text of the referenced requirements in the Standard may be read by using the blue hyperlinks
SBS Details


(1) Supporting Deck Overlay
If required by design authority.
(2) Air or Vapour Control Layers
If required by design authority.
(3) Insulation
See available insulation products in the Accepted Materials section of this Manual.
(4) Insulation Overlay
As required.
(5) Primary Membrane and Membrane Protection
(6) Membrane Flashing
Mechanically fasten to top of curb (C).
(7) Base Metal Flashing
Mechanically fasten to top of curb, standing seam at corners of cant, optional on flexible membrane systems. Optional on flexible membrane systems. Required on assemblies using gravel ballast filter mats.
(8) Metal Counter Flashing
(9) Metal Hood


(A) Acceptable Supporting Deck Structure
(B) Air / Vapour Seal
(C) Curb
Minimum 200 mm (8") above finished roof surface.

NOTE: See the Standard for additional requirements.

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