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The
new dome dispenses with the clam-shell opening mechanism in favour of a
more common sliding shutter. The upper part slides over the back of the
dome (the travel of which determines the maximum length of the upper
shutter). The lower part still uses a swing-down hinge design which
does not pose any particular problems in the wind. |
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The new aluminium shutter is test fitted in its rails
and the rest of the shell has been sanded back ready for painting. The
lower gap will be a shorter hinged shutter. |
|
The dome is completed and ready to put on the building.
The new shutters are flat instead of retaining the compound curve of
the dome like the old ones. For the low shutter this means it can now
be hinged all the way across the pivot point instead of a single stress
point in the middle.
|
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Sliding the dome up onto the building. |
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Final result. |
