Crucks, or naturally
curved timbers, have been extensively used since the Middle Ages
to support the roofs of buildings. The cruck cottage at
Torthorwald, which was still in use in the 19th century, is the
only
remaining example of this type of building remaining in
Dumfriesshire.
This building comprises three cruck frames of curved oak timbers
in their natural state, with just the bark and branches removed.
The method of construction probably involved shaping and joining
the various parts lying flat on the ground before raising them
in their final position. Once erected the assembled crucks would
be pegged, one to the next, by a ridge pole and further poles to
support the roof. Once the main support structure was in place a
layer of heather and turf provided a base for the final layer of
straw thatch used to complete the roof. |
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