Architectural · A-63EPB

Storefront Jamb at Fiber Cement and CMU Veneer

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Storefront jamb and sill transition details at fiber cement siding and CMU veneer walls. The storefront frame is set with one-eighth-inch shims and one-quarter-inch shims against a metal attachment angle, sealed with backer rod and sealant, and secured over metal flashing stopping onto an L-angle upstand with compressive foam behind it. The exterior wall assembly incorporates liquid-applied flashing, self-adhering weather-resistive barrier liner, primary weather-resistive barrier, semi-rigid insulation, and furring supporting fiber cement siding in the first detail. The second detail replaces the siding with CMU veneer over a one-and-one-half-inch minimum airspace, weather-resistive barrier liner, primary weather-resistive barrier, semi-rigid insulation, and vent cells at every head and base joint.

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