CONSERVATION
AND MAINTENANCE AT RUTHVEN PARK by Marilynn Havelka, CAO
Our goal at Ruthven Park, a nationally significant resource,is
to present the site to the visiting public not only now but
in years to come. However, building materials including masonry,wood
and architectural metals are all subject to damage, decay
and loss over time. As a strategy to slow down this deterioration,
scheduled conservation and regular maintenance have been implemented
to assist with the survival of these materials for future
generations.
Removal
of layers of paint from the Gate House.
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Rather
than restore particular buildings to a set and particular
time in the past, we have chosen to interpret the alterations
made by the Thompson family over time, making the changes
an important part of the buildings history and the interpretation
of the site.
Over the past four years a considerable amount of conservation
work has been undertaken. The priority for this work was to
keep the moisture out of buildings and make them structurally
sound, thereby slowing down the deterioration process. To
date, four of the nationally significant nationally significant
nineteenth century buildings have been conserved: namely,
the mansion, carriageway, gate house and the drill hall or
barracks. The first three buildings, which were part of the
conservation work schedule earlier this year will be discussed
below.
To complete the work on the exterior of the mansion, the ashlar
stone work on the main portion of the building, and the rubble
and stonework on the later building additions, were selectively
repointed. In keeping with the character of the house and
the evolution over time, different types of repointing techniques
were used including raised (ribbon) joints, squared and flat
joint profiles. Mortar samples used for repointing materials
were experimented with to ensure that the colour, texture
and joint profiles were correct. After close examination,
joints that were loose or missing, or joints which had excessively
soft mortar, or powdery or crumbling, were cut out and replaced.
Overall about 70% of the mortar joints were repointed. The
mortar mix was lime based putty making the mixture more flexible
to accommodate any movement in the building. Repairs were
made to stones that were split or cracked as well as the lintel
stones. In a few cases, deteriorated stones were cut out and
replaced.
The mansion windows were overhauled. They were made structurally
sound and repaired without damaging or scuffing the wood surface
while at the same time maintaining and conserving the maximum
amount of existing fabric and character. Because the original
window glass is old and valuable, the intent was to reset
any cracked glass rather than install replacement glass. Ultra-violet
filters were then carefully installed on the glass to help
preserve the interior finishes and furnishings from damaging
light and heat.
The
gate house wood pilasters and portico columns received on
site repairs. Lead coated copper rain water leaders, metal
flashings and eaves-troughs were added. The wood door was
made structurally sound and painted green, a colour that was
found under layers of paint.
Reconstruction
of the Carriageway Roof.
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The
carriage way walls were tied together with stainless steel
threaded rod dowels. The roof was reconstructed after the
new masonry wall ties were installed. The decorative roof
vents were salvaged and repaired and the roof was rebuilt
with a new ridgeboard, and cross ties. The gable framing was
reinstalled and the floorboards were replaced.
Even though the three buildings received a considerable amount
of attention over the past year continual monitoring and maintenance
will be required to keep them from further deterioration.
Next,our attention shifts to the Coach House stay tuned!