| 摘要 |
An affordable single-family, detached house is constructed so that it is expandable from a one-story building to a two-story building. A one-story building wooden frame, including a plurality of side stud walls and a plurality of upper joists extending at the top of the side walls, is constructed. A roof, including pitched roof sections, is assembled and then lifted onto the top of the one-story frame. The roof is connected to the one-story frame so that the ceiling joists of the roof and upper joists of the one-story frame are adjacent each other. Connection is effected with readily releasable fasteners such as screws. When it is desired to build the second story, the releasable fasteners are disconnected, the roof is lifted off the one-story frame and placed on the ground adjacent to the house, and a second story frame is constructed on top of the first story frame. The second story frame includes a number of side stud walls with the upper joists of the first story frame at the bottom of the second story frame, and plywood is disposed on the upper joists to provide the subflooring for the second story. The roof is lifted onto the second story frame and connected, with nails or the like, to the second story frame.
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