A smoke hatch skylight assembly mounts on a wood curb with metal counter flashing. The assembly includes single dome glazing with bulb gaskets, latch assemblies, torsion springs, hinge assemblies, and an exterior manual release with a UL/FM fusible link connected via tension springs. A mid gutter is located between hatches, and dimensions specify inside curb, outside curb, and flange-to-flange widths. An associated cricket plan view details tapered perlite cricket requirements for curbs twenty-four inches or wider.
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