Architectural · A-XWKR3

Fiber Cement Board to Metal Siding Inside Corner Plan Detail

Materials

Timber / Wood Metal (misc.)Gypsum / Drywall EIFS / Plaster / Stucco

Elements

Walls Windows Storefronts Facades / Cladding Waterproofing / Flashing Insulation Reinforcing Roof / Floor Openings

About this detail

This plan detail shows an inside corner transition between fiber cement board lap siding and metal siding assemblies meeting an aluminum storefront jamb. The exterior wall construction consists of an exterior gypsum board sheathing covered by a continuous fluid-applied air and water-resistive barrier, insulation, building paper, plywood, and twenty-two gauge flat lock metal panels or fiber cement lap siding. Six-inch reinforcing tape is applied over the plywood at the corner, with metal clips attaching the corner metal through the reinforcing tape. A continuous backer rod and sealant are installed all around the window rough opening, front and back, with point-to-point sealant beads between the fiber cement board and metal corner, as well as between the siding and flashing. A zero point zero forty-inch aluminum jamb flashing is set in a full bed of sealant over the aluminum storefront sill below.

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