Draft CD 1
Draft CD 1
Division D - Construction Details
SBS | Metal Edge Termination ( Article 10.3.4.2.)
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SBS Details
- Drawing NTS
1 WORK INCLUDED
- (1) Suitable field substrate
- May be the roof deck or deck overlay (if an uninsulated system), or insulation and an overlay (if conventionally insulated).
- (2) Primer or adhesive
- For self-adhered or adhered membranes, as required by the manufacturer.
- (3) Base field membrane
- Carried continuously over the outside edge at least 50.8 mm (2”) downward, or 50.8 mm past any cold joint.
- (4) Sealant or mastic
- Applied on membrane, beneath metal edge flashing.
- (5) Metal edge flashing (flush with roof surface):
- Fasteners spaced no more than 203.2 mm (8”) on the top face in two offsetting rows.
- A hemmed drip edge (shown) is required (Refer to Article 13.2.2.1. for fabrication requirements).
- (6) Membrane flashing strip
- Applied to the metal edge flashing and overlapping onto the field membrane at least 101.6 mm (4”). Prime when required by the manufacturer (primer illustrated).
- (7) Cap field membrane
- Installed according to Part 9 requirements.
- (8) Edge mastic
- Apply mastic or another membrane-compatible sealant to the outer exposed edge of the field cap sheet membrane. Coat with granules.
2 RELATED WORK BY OTHERS
- (A) Structural Roof Deck
- Generic and representative only.
- (B) Roof edge substrate
- Wood blocking, required for conventionally insulated roofs.
- (C) Wall assembly
- Generic and representative only.
NOTE: See the SBS Roof Systems Standard for additional requirements.
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