Architectural · A-7YB5K

Overhead Coiling Door Sill at CMU Wall

Materials

Steel Cold-formed Steel Stainless Steel Timber / Wood Masonry / CMU Brick

Elements

Beams Walls Partitions Doors Facades / Cladding Insulation Anchors / Embeds Connections / Plates Reinforcing

About this detail

An exterior overhead coiling door sill is detailed at a concrete masonry unit wall assembly. The exterior threshold features sixteen-gauge Type 304 stainless steel with a non-directional matte finish, a one-and-a-half-inch square edge with a half-inch inside return, and a three-inch outside return over two layers of three-quarter-inch moisture-resistant substrate. Stainless steel returns underneath the substrate with continuous sealant over wood blocking and a six-by-four-by-quarter-inch galvanized bent plate anchored with half-inch diameter masonry anchors at two feet on center maximum. The wall assembly incorporates a twelve-inch nominal concrete masonry unit bond beam supported by two-by-quarter-inch stainless steel brackets spaced at sixteen inches on center with two quarter-inch anchors per bracket, accompanied by a continuous six-by-four-by-quarter-inch bent plate support between brackets. The interior side includes a three-inch steel plate at the head and jamb anchored to the masonry wall and painted to match the brick color, supporting the overhead coiling door track with the bottom of the substrate painted flat black.

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