SBS Details:D1.7.8-4 Water & Drainage (Open Wall Scupper)

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SBS Details:D1.7.8-4 Water & Drainage (Open Wall Scupper)

RoofStar Guarantee Standards are blue-linked
SBS Details

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1 WORK INCLUDED

(1) Vapour Retarder
If required by design authority.
(2) Insulation
Mechanically fastened. See available insulation products in the Accepted Materials section of this Manual.
(3) Insulation Overlay Board
Where required.
(4) Primary Membrane and Membrane Protection
(5) Metal Scupper with Hopper
The outside face of scupper to be 37.7mm (1½") lower than the box height with a 12.7mm (½") drip edge. Installed in a thin bed of compatible mastic. Interface between outside wall and scupper should be caulked with appropriate sealant. Installed when wall finish is complete prior to completion of roofing or sheet metal (e.g.: re-roofing).
(6) Scupper Membrane Flashing
(7) Membrane Flashing
(8) Base Metal Flashing
Mechanically fastened. Optional on flexible membrane systems. Required on assemblies using gravel ballast filter mats.
(9) Metal Cap Flashing
Fasten with continuous concealed clip-type fasteners or cladding screws evenly spaced between seams. Flashing 8 and 9 may be one piece.

2 RELATED WORK BY OTHERS

(A) Acceptable Deck
(B) Air / Vapour Seal
(C) Wood Blocking
(D) Acceptable Wall Surface - Plywood
(E) Wall Finish
Interface between outside wall and scupper to be caulked with appropriate sealant. Installed by trade responsible for outside wall finish if roofing and metal flashing has been completed prior to exterior wall finish.

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.




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