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Roof Construction |
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The skeletal roof has been fitted with eight strong
casters (4 on each side) and temporarily placed into position to check alignment
and accuracy of construction. Notice that the roof beam members are
still to be fitted. The initial drop of the pent roof (towards the west) had to be increased as
it was felt that some pools of rain water may remain on the roof.
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The roof runs on two specially welded 24ft lengths of 2" angle iron. A
great deal of time
and effort was devoted to ensure that these rails were absolutely level
and totally parallel to each other. Any inaccuracy at this stage would
result in future problems with rolling the roof on and off. |

View (looking due south) showing the two lengths of angle iron (painted black)
screwed into place on top of the 4ft high walls and rail supports.
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Martin in the process of fixing the 8'x4' 1/2" sheets
of shuttering into position on the roof. |
The height of the roof is such that it is just possible for me stand up
with the roof closed - tall people (over 6ft) have to adjust their posture
accordingly and watch out for the beams! While the roof is quite heavy,
once the initial inertia is overcome it rolls surprisingly freely. I just
need to make sure that the casters are regularly greased. |
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Battens were applied to the seams and although there was
one or two small leaks initially these were quickly sorted out with liberal
use of exterior sealant. |

Tony making adjustments to the two layers of green mineral felt
which have been applied in alternate directions.
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