V-Wheels from Caster City and large Southco Draw latches to hold roof down when closed.
Observatory will be 10'X10' with the pier off center toward the southern wall about one foot. This was necessary to give a clear view of Polaris over the edge of the open roof.
Front facia overlaps north wall and serves as a roof stop for closing. Notice that a standard door is allowed with this construction.
The above photograph shows how two feet of the south wall folds down leaving the roof facia exposed so that the roof can be rolled open (see second and third photographs above). The fold section when raised overlaps the facia and serves as a rain seal. This section must be down for both opening and closing the roof. When the roof is open, the section can be left up or down and it works well for a wind or stray light break when needed. The facia shown here also serves as a roof stop when opening the roof as it will come in contact with the inside of the north wall. Just a note in passing; I use an old parachute to cover the telescopes for dust protection. This works remarkedly well even in our occasional dust storms.
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