SBS Tall Parapet

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SBS Tall Parapet

Revision as of 18:03, 7 September 2021 by James Klassen (talk | contribs)

Division D - Construction Details

SBS Parapet, tall (typical)

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

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(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) Base Membrane Flashing
Mechanically fasten to parapet at termination.
(7) Base Metal Flashing
Optional on flexible membrane systems. Required on assemblies using gravel ballast filter mats. See Section 13.6 - Cap Flashings, Base Flashings and Reglets.
(8) Metal Counter Flashing
Minimum 25 mm (1") above roof surface.
(9) Metal Cap Flashing
Required whenever the primary roof membrane flashing/stripping is carried over the top of parapet walls. See Section 13.6 - Cap Flashings, Base Flashings and Reglets.


(A) Acceptable Supporting Deck Structure
(B) Air / Vapour Seal
(C) Acceptable Wall Surface
(D) Wood Blocking
(E) Sloped Wood Blocking
Required over 100 mm (4") parapet width.
(F) Wall Sheathing Membrane
Minimum 1 mm (0.040") self-adhered modified bitumen.
(G) Exterior Wall Finish
(H) Metal Cap Flashing
Required by others whenever the primary roof membrane is not carried over top of the parapet and/or when the wall finish is by others. (Unless specified otherwise).
(I) Cap Flashing Underlay
Minimum 1 mm (0.040" or 40 mil) self-adhered modified bitumen.

NOTE: See the Standard for additional requirements.

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