Difference between revisions of "SBS Expansion Joint (Field)"
Difference between revisions of "SBS Expansion Joint (Field)"
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Revision as of 17:12, 27 August 2021
| RoofStar Guarantee Standards are blue-linked |
SBS Details
1 WORK INCLUDED
- (1) Air or Vapour Control Layers
- If required by design authority
- (2) Insulation
- See available insulation products in the Accepted Materials section of this Manual.
- (3) Insulation Overlay
- As required.
- (4) Primary Membrane and Membrane Protection
- (5) Membrane Flashing
- Mechanically fasten to top of blocking (C).
- (6) Membrane Underlay
- Minimum self-adhered modified bitumen or as per membrane manufacturer’s recommended detail.
- (7) Metal Base 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
- Top surface must be sloping. Extend beyond and over-break at top corners. Fasten with concealed clip-type fasteners or cladding screws evenly spaced between seams.
2 RELATED WORK BY OTHERS
- (A) Acceptable Supporting Deck Structure
- (B) Air / Vapour Seal
- (C) Expansion Joint Assembly
- Minimum 200 mm (8") and maximum 300 mm (12") above finished roof surface. Minimum height may be reduced to 100mm (4") if the primary roof membrane flashing is fully supported and sealed over the top. Primed where applicable. Top must be sloped.
- (D) Flexible Insulation
NOTE: See the Standard for additional requirements.
Back to RoofStar Guarantee Standards for SBS Modified Bitumen Roof Assemblies
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