Draft CD 17
Draft CD 17
Revision as of 15:27, 26 February 2024 by James Klassen (talk | contribs)
Division D - Construction Details
SBS | Membrane Termination E (Wall) ( Article 10.3.2.3.)
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| Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article 2.2.1.2.).
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SBS Details
- Drawing NTS
1 WORK INCLUDED
- (1) Air/Vapour Control Layers
- As specified by the Design Authority and installed to provide continuity for optimal control.
- (2) Insulation
- Installed in keeping with Section 7.3. Multiple layering illustrated; layers must be offset and staggered at least 304.8 mm (12”) in each direction.
- (3) Insulation Overlay Panel
- Required for fully adhered membrane systems or when overburden is specified. Panels must be offset and staggered from underlying insulation panels.
- (4) Base Sheet Field Membrane
- See Table 9.2. for permissible application methods and corresponding membrane properties. Membrane must be installed according to the requirements in Section 9.3.
- (5) Base Sheet Flashing Membrane
- Install in keeping with the requirements in Section 10.3. Base sheet membrane flashing must extend onto the roof field at least 101.6 mm (4"). Membrane shall be carried up the vertical substrate at least 203.2 mm (8”) above the finished roof system surface, plus at least 76.2 mm (3”) for wall control layer overlap. In regions where heavy snow accumulation is possible, or to accommodate future roof membrane replacement, membrane should be carried at least 304.8 mm (12”) up the vertical substrate.
- (6) Cap Sheet Field Membrane
- See Table 9.2. for permissible application methods and corresponding membrane properties. Membrane must be installed according to the requirements in Section 9.3.
- (7) Cap Sheet Flashing Membrane
- Install in keeping with the requirements in Section 10.3. Cap sheet membrane flashing must extend onto the field at least 152.4 mm (6"), or at least 50.8 mm (2”) past the edge of the base membrane flashing.
- (8) Membrane Edge Securement and Sealant
- All membranes applied to a vertical surface must be mechanically fastened. Mechanically fastened termination (“term”) bar with tooled sealant shown.
- (9) Surface Reglet Counter-flashing and Sealant
- Surface reglet counter-flashing with bead of sealant applied in reglet cut. This flashing provides secondary protection for the “term” bar and safe-guards the sealant from weather-induced deterioration and mechanical damage.
2 RELATED WORK BY OTHERS
- (A) Acceptable Deck
- Illustrated deck is representative. See Sub-section 2.1.5. for acceptable deck types and conditions.
- (B) Wall Structure
- Illustrated wall is representative. Wall control layers (i.e. water resistive barrier) must overlap roofing system to achieve continuity. See Sub-section 2.1.7. for wall conditions.
NOTE: See the SBS Roof Systems Standard for additional requirements.
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