Structural · S-82MEV

Mechanical Curb and Roof Opening Detail at Steel Framing

Materials

Elements

Beams Roofs Decks Arches Insulation Site / Paving Roof / Floor Openings

About this detail

This structural section details a mechanical curb and roof opening framed by steel beams and supported by metal roof deck angles. The mechanical curb is constructed from fourteen gauge minimum steel, engineered by the contractor, and tapered as required to accommodate the roof slope with a flat top. L6x4x3/8 deck support angles are welded to the steel framing using three-sixteenths inch welds on two sides typically. An angle or bent plate with a thickness of one-quarter inch minimum matches the insulation leg and coordinates with the architectural finish roof assembly depth. A three-sixteenths inch fillet weld with four-to-twelve pitch is used typically across the assembly.

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