Architectural · A-JDHNZ

Roof Equipment Curb Flashing Detail

Materials

Concrete Timber / Wood Metal (misc.)

Elements

Roofs Decks Waterproofing / Flashing Insulation

Connections

Welded Connection Deck Attachment

About this detail

A concrete equipment pad sits atop a concrete fill layer over a cross-laminated timber roof deck with a bottom vapor barrier. Tapered insulation and five-eighths-inch exterior roof sheathing cover the deck and slope away from the curb. WP-nine single-ply roofing membrane runs up the vertical face of the pad and is secured with fasteners at twelve inches on center through a termination bar. A twenty-two gauge galvanized sheet metal two-piece flashing with wind cleats caps the top of the curb, backed by a continuous roofing manufacturer's liquid flashing lapped eight inches minimum over the termination bar and roofing membrane.

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