Architectural · A-36VRE

Roof Penthouse Skylight

Materials

Cold-formed Steel Glass / Glazing Gypsum / Drywall Membrane / Roofing Metal (misc.)Steel Timber / Wood

Elements

Beams Ceilings Connections / Plates Decks Expansion / Control Joints Insulation Roof / Floor Openings Roofs Site / Paving Skylights Waterproofing / Flashing

About this detail

The assembly features a Velux commercial modular skylight system with three fixed modules measuring 2600mm by 900mm, supported by manufacturer standard flashing and a 210mm substructure. Steel shims and structural connections span the width of the opening to attach the curb to the building framing, with manufacturer-specified foam gaskets and top and bottom flashings. The roof curb is framed with sixteen-gauge, eight-inch metal studs spaced at sixteen inches on center, filled with minimum R-19 batt insulation and finished with five-eighths-inch sheetrock on all sides using J-beads. A continuous control joint is aligned to the deck at all sides of the skylight. The PVC roof membrane turns up eight inches minimum, terminating per detail 5/A-490 over insulation with a quarter-inch slope minimum. The curb bears upon a three-inch corrugated metal deck and structural steel beams with Z-girts and framing supporting the interior gypsum ceiling below.

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