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Set the filler pieces flush with the inner face of the foundation wall (Figure 59). Joist headers and end rim joists serve as outside forms for the concrete. Beam ends must be treated to prevent decay when the bottoms of the members are located at or below grade. Place the concrete so that at least two-thirds of the depth of each joist is embedded in the concrete, thus providing suitable anchorage for the floor-framing members.
Remove the filler pieces and the wall forms when the concrete has set. This method can also be used for a brick veneer finish (Figure 60).
FLOOR JOISTS Joists are selected to meet strength, deflection and vibration requirements on which the joist selection tables are based (Tables 20 and 21 on pp. 285-286). The spans in the tables are
59 Floor joists embedded in the top of the foundation wall
rim joist header floor joist concrete foundation
60 Masonry support using joist-embedded method of floor framing
brick veneer header
sheathing membrane lapped over flashing metal flashing floor joist concrete foundation