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Cute Young Brunette Girl Outside At The Old Pole Barn
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The posts provide a strong vertical anchors and supports for attaching the shell of the building which is connected by bolted through girts running ribbon like horizontally like bands at different heights generally about two feet apart. The posts replace the studs commonly used in the more familiar platform framing construction techniques people see in housing. The exterior walls are indirectly attached to the outer edge of the posts onto girts which run around the building like wooden bands at the same fixed heights about two feet apart from where the upper girts support the roof and rafters at intervals about 2 feet on center to a bottom girt that is possibly under the sub-floor level supporting the rafters of a wooden floor. The roof is attached to the top girts (normally both) of the longer wall usually via a standard ridge beam and rafter or more commonly, using a truss system which can span longer distances and requires no interior posts and beams with modern tech.
When center posts are tolerable a more economic technique uses shed roofing and standard rafters being supported from the row of center posts (higher than wall end posts) that are necessary with ridge and rafter roof framing which needs building support near the centerline, but the ability to have two girts supporting the ends of the rafter below and slightly outside of the ridge board simplifies its construction and strengthens the roof. Further, extending that configuration by adding an intermediate row of poles collinear in height along the line lying between the height of the center and wall posts can be used to hang girts in the same plane as the line from the ridge board to the wall top girts. This in effect allows the building to use the same length rafter elements from post row to post row repeated as needed 'nn times' and extend such a roof a significantly allowing a deep building with a roof with many sub-structural elements all providing the same pitch.
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