James Klassen at 21:50, 26 September 2025

2025-09-26T21:50:39Z

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<big><big>Division D - Construction Details</big></big>
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<big><big><big><big><big>SBS | Window Opening ([[SBS_Roof_Systems_Standard#10.3.4.5._Doors.2C_Windows.2C_and_Wall_Openings | Article 10.3.4.5.]])</big></big></big></big></big>
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<div class="panel-heading"><big>'''SBS Details'''</big></div>
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=== WORK INCLUDED ===

;(1) [[SBS Roof Systems Standard#PART_9|'''Primary Roof Membrane''']]: Installed per ''RoofStar Guarantee Standards''.
;(2) [[SBS Roof Systems Standard#PART_10|'''Membrane Flashing''']]: Carried up walls a minimum 200 mm (8") above roof surface. At window curbs membrane flashing must be 200mm (8") in height above the top of extruded polystyrene insulation or protection/drainage layer, extended under the window mullion (fenestration assembly) and carried to the inside edge of the curb. Membrane gussets must be installed at all corners and transitions.
;(3) [[SBS Roof Systems Standard#PART_11|'''Protection/Drainage Layer''']] '''- Insulation Surfacing''': Assemblies to be determined by Design Authority. Paver systems are required to have proprietary pedestals that incorporate a minimum 3mm (1/8") gap between adjacent units. See additional requirements under [[SBS Roof Systems Standard#PART_12|'''12.1 Protected and Modified Protected Membrane Roof Assemblies''']].
;(4) [[SBS Roof Systems Standard#PART_13|'''Metal Wall Flashing''']]: Required on roof assemblies using gravel ballast, filter mats and drainage mediums at insulation /curb interfaces.

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=== WORK BY OTHERS ===
;(A) [[SBS Roof Systems Standard#PART_2|'''Acceptable Supporting Deck Structure''']]: Concrete slab shown
;(B) [[SBS Roof Systems Standard#PART_11|'''Supporting Curb''']]: Height varies depending on the insulation thickness and type of roof assembly.
;(C) '''Metal Water Stop Flashing''': Mechanically attached to the top of the window curb. Cut flashing to fit the opening and pan fold, weld, or solder seams at all corners and mitres.
;(D) '''Metal Water Stop Flashing Seam''': Overlap metal water stop joints a minimum of 150mm (6") and seal joints with two rows of structural sealant.
;(E) '''Building Envelope Membrane Flashing''': Must be compatible with and overlap the roof membrane flashing. Membrane gussets must be installed at all corners and transitions.
;(F) [[SBS Roof Systems Standard#PART_13|'''Metal Cap Flashing''']]: Adhere metal cap flashing to membrane flashing with a membrane compatible structural sealant. Mechanical attachment of metal flashing through the membrane flashing is not acceptable.
;(G) '''Fenestration Assembly''': CAUTION - Securement fasteners <b>MUST NOT</b> penetrate the metal or membrane flashing.
;(H) '''Fenestration Assembly Securement Bar''': Fasten securement bar ONLY through upper vertical leg of the window mullion (frame).
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'''NOTE''': See the [[SBS Roof Systems Standard | '''Standard''']] for additional requirements.

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James Klassen at 21:50, 26 September 2025