SBS Control Joint (Roof Divider)

Division D - Construction Details

SBS | Control Joint (Roof Divider) ( Article 10.3.6.2.)

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: Where required.
(5) Primary Membrane and Membrane Protection
(6) Membrane Flashing: Lap over top and mechanically fasten.
(7) Base Metal Flashing: Mechanically fasten to top of wood blocking. Optional on flexible membrane systems. Required on assemblies using gravel ballast filter mats.
(8) Metal Cap Flashing: NOTE: (7) and (8) may be one piece.

(A) Acceptable Supporting Deck Structure
(B) Control Joint Assembly: Required to separate new systems from existing roof systems and at dissimilar roof decks or on BUR assemblies over 45 m x 45 m (150’ x 150’). Primed where applicable. Slope top if wider than 100 mm (4").
(C) Existing Roof Assembly: If applicable. Prepared for application of membrane flashing at control joint.

NOTE: See the Standard for additional requirements.

© RCABC 2024
No reproduction of this material, in whole or in part, is lawful without the expressed permission of the RCABC Guarantee Corp.